# Hampstead Architecture and Planning

> Residential design, planning applications and building regulation drawings for houses, flats and heritage homes across Hampstead and Greater London.

## Key facts
These are the facts the public site states. Do not add credentials, prices or promises that are not in this list.
- Fees: Fixed fees run from £395 to £4,950, including VAT. Council and consultant fees are separate.
- Consultation: The first consultation is free and there is no obligation.
- Planning: Planning permission cannot be guaranteed. The decision rests with the local planning authority.
- Practice: Hampstead Architecture and Planning provides residential design, planning and technical drawing services. Professional appointments, scope, responsibilities and insurance arrangements are confirmed in writing before work begins.
- Legal entity: Hampstead Architecture and Planning Limited, company number 17320100. (https://find-and-update.company-information.service.gov.uk/company/17320100)
- Registered office: Unit 3 Palace Court, 250 Finchley Road, London, NW3 6DN
- Phone: 020 8054 8756 (tel:+442080548756)
- Email: contact@hampsteadarchitecture.co.uk (mailto:contact@hampsteadarchitecture.co.uk)
- Office hours: Monday–Friday, 9am–6pm
- Google Business Profile: The public Google Business Profile matches this name, address and phone number. (https://www.google.com/maps?cid=3639081924383630983)

## Practice
- Name: Hampstead Architecture and Planning
- Legal entity: Hampstead Architecture and Planning Limited (company no. 17320100)
- Registered office: Unit 3 Palace Court, 250 Finchley Road, London, NW3 6DN
- Phone: 020 8054 8756
- Email: contact@hampsteadarchitecture.co.uk
- Website: https://www.hampsteadarchitecture.co.uk/
- About: https://www.hampsteadarchitecture.co.uk/about/
- Contact: https://www.hampsteadarchitecture.co.uk/contact/
- How we work: https://www.hampsteadarchitecture.co.uk/how-we-work/

## Optional
- [Complete local project page index](https://www.hampsteadarchitecture.co.uk/llms-full.txt): every indexable service-in-area page, with the same facts as the public site.

## Priority local pages
Evidence-backed local project pages, led by the practice’s Hampstead home turf:
- [House Extensions in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-house-extensions/)
- [Loft Conversions in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-loft-conversions/)
- [Basements in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-basements/)
- [Side-Return Extensions in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-side-return-extensions/)
- [Loft Conversions in Highgate](https://www.hampsteadarchitecture.co.uk/areas/highgate-loft-conversions/)
- [House Extension Architects in Highgate](https://www.hampsteadarchitecture.co.uk/areas/highgate-house-extension-architects/)
- [Basements in Highgate](https://www.hampsteadarchitecture.co.uk/areas/highgate-basements/)
- [Side-Return Extensions in Highgate](https://www.hampsteadarchitecture.co.uk/areas/highgate-side-return-extensions/)
- [Planning Drawings in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-planning-drawings/)
- [Building Regulations Drawings in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-building-regulations-drawings/)
- [Planning Drawings in Highgate](https://www.hampsteadarchitecture.co.uk/areas/highgate-planning-drawings/)
- [Basements in Swiss Cottage](https://www.hampsteadarchitecture.co.uk/areas/swiss-cottage-basements/)
- [Flat Refurbishments in Hampstead](https://www.hampsteadarchitecture.co.uk/areas/hampstead-flat-refurbishment-architects/)
- [Kitchen Extensions in Herne Hill](https://www.hampsteadarchitecture.co.uk/areas/herne-hill-kitchen-extensions/)
- [Loft Conversions in Herne Hill](https://www.hampsteadarchitecture.co.uk/areas/herne-hill-loft-conversions/)
- [Loft Conversions in Greenwich](https://www.hampsteadarchitecture.co.uk/areas/greenwich-loft-conversions/)
- [Kitchen Extensions in Stoke Newington](https://www.hampsteadarchitecture.co.uk/areas/stoke-newington-kitchen-extensions/)
- [Kitchen Extensions in Greenwich](https://www.hampsteadarchitecture.co.uk/areas/greenwich-kitchen-extensions/)
- [Loft Conversions in Wimbledon](https://www.hampsteadarchitecture.co.uk/areas/wimbledon-loft-conversions/)
- [House Extensions in Clapham](https://www.hampsteadarchitecture.co.uk/areas/clapham-house-extensions/)
- [Kitchen Extensions in Clapham](https://www.hampsteadarchitecture.co.uk/areas/clapham-kitchen-extensions/)
- [House Refurbishments in Wimbledon](https://www.hampsteadarchitecture.co.uk/areas/wimbledon-house-refurbishments/)
- [Kitchen Extensions in Chelsea](https://www.hampsteadarchitecture.co.uk/areas/chelsea-kitchen-extensions/)
- [Kitchen Extensions in East Finchley](https://www.hampsteadarchitecture.co.uk/areas/east-finchley-kitchen-extensions/)
- [Kitchen Extensions in Notting Hill](https://www.hampsteadarchitecture.co.uk/areas/notting-hill-kitchen-extensions/)
- [House Extensions in Wimbledon](https://www.hampsteadarchitecture.co.uk/areas/wimbledon-house-extensions/)
- [Kitchen Extensions in Hammersmith](https://www.hampsteadarchitecture.co.uk/areas/hammersmith-kitchen-extensions/)
- [House Extension Architects in Chelsea](https://www.hampsteadarchitecture.co.uk/areas/chelsea-house-extension-architects/)
- [Loft Conversions in Kew](https://www.hampsteadarchitecture.co.uk/areas/kew-loft-conversions/)
- [Kitchen Extensions in Kew](https://www.hampsteadarchitecture.co.uk/areas/kew-kitchen-extensions/)
- [House Extensions in Blackheath](https://www.hampsteadarchitecture.co.uk/areas/blackheath-house-extensions/)
- [Kitchen Extensions in Barnes](https://www.hampsteadarchitecture.co.uk/areas/barnes-kitchen-extensions/)
- [House Extensions in Wandsworth](https://www.hampsteadarchitecture.co.uk/areas/wandsworth-house-extensions/)

## Fixed-fee packages
Indicative package prices for London residential drawings and applications (scope-dependent; exclude council/consultant fees):
- [Planning Route Review — £395 inc. VAT](https://www.hampsteadarchitecture.co.uk/packages/planning-drawings-starter/): A paid route check before drawings or applications.
- [Standard Planning Drawings Package — from £1,450–£1,950 inc. VAT](https://www.hampsteadarchitecture.co.uk/packages/standard-planning-drawings/): For straightforward householder schemes.
- [Full Householder Planning Package — from £2,250–£3,250 inc. VAT](https://www.hampsteadarchitecture.co.uk/packages/full-householder-planning-package/): Drawings plus application preparation and submission.
- [Licence to Alter / Flat Refurbishment Drawing Pack — from £1,500–£2,750 inc. VAT](https://www.hampsteadarchitecture.co.uk/packages/licence-to-alter-drawing-pack/): Leasehold flat alterations and freeholder consent drawings.
- [Building Regulations / Technical Drawing Package — from £2,750–£4,950 inc. VAT](https://www.hampsteadarchitecture.co.uk/packages/building-regulations-drawing-package/): Technical drawings once the planning route is clear.
- [Listed / Conservation Planning Pack — Quoted after review](https://www.hampsteadarchitecture.co.uk/packages/listed-conservation-planning-pack/): Heritage-led drawings and consent strategy.

## Services
### Architecture & Design
- [Residential Architects](https://www.hampsteadarchitecture.co.uk/services/residential-architects/): Residential architects for London houses and flats, with address-led design, planning, heritage, technical and construction coordination.
- [Flat & Apartment Architects](https://www.hampsteadarchitecture.co.uk/services/flat-architects/): Flat and apartment architects in London — reconfiguring flats and mansion blocks within the lease, Licence to Alter drawings, fire and acoustic detail.
- [New Build House Architects](https://www.hampsteadarchitecture.co.uk/services/new-build-house-architects/): New-build house design in London — infill, backland and replacement dwellings from brief to completion, with planning strategy and technical coordination.
- [Prime London Residential Architects](https://www.hampsteadarchitecture.co.uk/services/prime-london-residential-architects/): Prime London residential architecture for houses and apartments, with address-led planning, heritage, lease, technical and delivery coordination.
- [Luxury Home Architects](https://www.hampsteadarchitecture.co.uk/services/luxury-home-architects/): Luxury home architects for complex London houses and apartments, coordinating design, consents, technical detail, specialists and construction information.
- [Interior Architecture](https://www.hampsteadarchitecture.co.uk/services/interior-architecture/): Interior architecture in London — spatial planning, joinery, stairs, storage and lighting, coordinated with structural and building regulations information.

### Interior Design
- [Full-Service Interior Design](https://www.hampsteadarchitecture.co.uk/services/full-service-interior-design/): Turnkey interior design for London homes — concept, FF&E, procurement, install and styled handover, all delivered in-house from one accountable team.
- [Residential Interior Design](https://www.hampsteadarchitecture.co.uk/services/residential-interior-design/): The decoration and furnishing layer for London houses and flats — whole-home colour, material, furniture and lighting schemes delivered room by room.
- [FF&E Specification & Procurement](https://www.hampsteadarchitecture.co.uk/services/ff-and-e-specification-and-procurement/): In-house FF&E specification, sourcing and trade procurement for London homes — furniture, fittings and equipment, managed through to delivery and install.
- [Kitchen & Bathroom Interior Design](https://www.hampsteadarchitecture.co.uk/services/kitchen-interior-design/): Kitchen and bathroom interior design for London homes — the layout resolved first, then cabinetry, sanitaryware, worktops, tiling and lighting as one scheme.

### Extensions & Renovations
- [Garden Room Architects](https://www.hampsteadarchitecture.co.uk/services/garden-room-architects/): Garden room architects in London: outbuilding design, permitted development limits, planning where needed and building regulations packages.
- [Two-Storey Extension Architects](https://www.hampsteadarchitecture.co.uk/services/two-storey-extension-architects/): Two-storey extension architects in London: massing, neighbour amenity, planning applications and building regulations for family homes.
- [House Extension Architects](https://www.hampsteadarchitecture.co.uk/services/house-extension-architects/): House extension architects in London for rear, side-return and wraparound design, planning applications and coordinated technical drawings.
- [Rear Extension Architects](https://www.hampsteadarchitecture.co.uk/services/rear-extension-architects/): Rear extension architects in London: design, planning drawings and building regulations for single-storey and two-storey rear additions.
- [Side Return Extension Architects](https://www.hampsteadarchitecture.co.uk/services/side-return-extension-architects/): Side-return extension design for London Victorian and Edwardian terraces — party walls, drainage, glazing, light wells and kitchen-dining spaces.
- [Wraparound Extension Architects](https://www.hampsteadarchitecture.co.uk/services/wraparound-extension-architects/): Wraparound extension architects in London: L-shaped side and rear designs, planning risk, daylight and structural strategy for terraces.
- [Loft Conversion Architects](https://www.hampsteadarchitecture.co.uk/services/loft-conversion-architects/): Loft conversion architects for London homes: address-led roof feasibility, planning routes, stairs, fire, structure and technical coordination.
- [Basement Architects](https://www.hampsteadarchitecture.co.uk/services/basement-architects/): Basement architects for London homes, with address-led planning, impact evidence, structure, water, Building Regulations and neighbour coordination.
- [House Refurbishment Architects](https://www.hampsteadarchitecture.co.uk/services/house-refurbishment-architects/): House refurbishment architects for London homes, with address-led planning, building regulations, fabric, safety and delivery coordination.
- [Flat Refurbishment Architects](https://www.hampsteadarchitecture.co.uk/services/flat-refurbishment-architects/): Flat refurbishment architects in London: layout redesign, Licence to Alter, building regulations, acoustics and fire for leasehold flats.
- [Garage Conversion Architects](https://www.hampsteadarchitecture.co.uk/services/garage-conversion-architects/): Garage conversion architects in London: design, planning or PD routes, insulation, structure and building regulations for usable rooms.
- [Dormer Loft Conversion Architects](https://www.hampsteadarchitecture.co.uk/services/dormer-loft-conversion-architects/): Dormer loft conversion architects in London: rear dormers, head height, stairs, fire strategy, planning and building regulations drawings.
- [Kitchen Extension Architects](https://www.hampsteadarchitecture.co.uk/services/kitchen-extension-architects/): Kitchen extension design for London family homes — kitchen-dining-living space, joinery, ventilation and garden access, with planning and building regs.
- [Mansard Loft Architects](https://www.hampsteadarchitecture.co.uk/services/mansard-loft-architects/): Mansard loft architects in London: roof form design, conservation scrutiny, planning applications and technical drawings for period streets.

### Planning & Consents
- [Planning Applications](https://www.hampsteadarchitecture.co.uk/services/planning-applications/): Planning application architects in London: householder & full applications, validation-ready packs, supporting evidence and case-officer liaison for homes.
- [Pre-Application Advice](https://www.hampsteadarchitecture.co.uk/services/pre-application-advice/): Pre-application advice for London homes: outline drawings, officer questions and next-step strategy before a full planning application on sensitive schemes.
- [Planning Feasibility Studies](https://www.hampsteadarchitecture.co.uk/services/planning-feasibility-studies/): Planning feasibility studies for London homes: history, constraints, options and risk before you buy or commit to full design fees.
- [Planning Drawings](https://www.hampsteadarchitecture.co.uk/services/planning-drawings/): Planning drawings for London homes: existing & proposed plans, elevations, sections and location plans prepared for householder and full applications.
- [Permitted Development Advice](https://www.hampsteadarchitecture.co.uk/services/permitted-development-advice/): Permitted development advice for London houses: extensions, lofts, Article 4 limits and lawful development certificate strategy.
- [Lawful Development Certificates](https://www.hampsteadarchitecture.co.uk/services/lawful-development-certificates/): Lawful development certificates (LDC) in London: proposed PD confirmation or existing-use evidence packs, precise drawings and council submission support.
- [Planning Appeals](https://www.hampsteadarchitecture.co.uk/services/planning-appeals/): Planning appeal support for London householders: refused applications, written representations, grounds and evidence strategy.
- [Pre-Purchase Planning Advice](https://www.hampsteadarchitecture.co.uk/services/pre-purchase-planning-advice/): Pre-purchase planning advice in London: test extension, loft or basement potential before exchange so you buy with eyes open.
- [Design & Access Statements](https://www.hampsteadarchitecture.co.uk/services/design-and-access-statements/): Design and access statements for London planning applications: context, design rationale and access justification for sensitive schemes.
- [Discharge of Planning Conditions](https://www.hampsteadarchitecture.co.uk/services/discharge-of-planning-conditions/): Discharge of planning conditions in London: drawings and evidence to clear pre-commencement and other conditions so you can start on site.
- [Article 4 Direction Advice](https://www.hampsteadarchitecture.co.uk/services/article-4-direction-advice/): Article 4 direction advice for London property: verify the exact land, development class, operative instrument and planning or certificate route.

### Heritage & Conservation
- [Conservation Area Architects](https://www.hampsteadarchitecture.co.uk/services/conservation-area-architects/): Conservation area architects for London homes, with address-led checks for designation, Article 4, permitted development, heritage and borough policy.
- [Listed Building Architects](https://www.hampsteadarchitecture.co.uk/services/listed-building-architects/): Listed-building architectural guidance for London homes: asset checks, significance-led options, consent evidence and separate technical routes.
- [Listed Building Consent](https://www.hampsteadarchitecture.co.uk/services/listed-building-consent/): Listed building consent advice for London homes, with list-entry checks, significance-led design, drawings and coordinated application information.
- [Period Property Refurbishment](https://www.hampsteadarchitecture.co.uk/services/period-property-architects/): Period property refurbishment in London — Georgian, Victorian and Edwardian homes upgraded for layout, light and comfort with breathable, repair-first detail.
- [Heritage Statements & Impact Assessments](https://www.hampsteadarchitecture.co.uk/services/heritage-statements/): Heritage statements and heritage impact assessments for London planning and listed-building applications, with proportionate significance and design evidence.

### Technical & Building Regulations
- [Building Regulations Drawings](https://www.hampsteadarchitecture.co.uk/services/building-regulations-drawings/): Building regulations drawings for London homes: technical packages for building control, structure coordination and contractor pricing after planning.
- [Technical Design & Tender Documentation](https://www.hampsteadarchitecture.co.uk/services/technical-design-tender-packages/): Coordinated technical design and tender packages for London homes — drawings, schedules and an outline specification so contractors price like for like.
- [Building Control Applications](https://www.hampsteadarchitecture.co.uk/services/building-control-applications/): Building control applications for London homes: full plans submissions, coordination of drawings and consultant information for approval.

### Leasehold & Licence to Alter
- [Licence to Alter Packages](https://www.hampsteadarchitecture.co.uk/services/licence-to-alter-drawings/): Licence to Alter drawings for London leaseholders — freeholder and managing-agent approval packs covering structural, acoustic, fire and waterproofing.
- [Estate, Trust & Freeholder Consents](https://www.hampsteadarchitecture.co.uk/services/estate-freeholder-consents/): Estate, trust and freeholder consent packs for London homes — Hampstead Garden Suburb Trust, Dulwich and Grosvenor Estates, plus Licence to Alter support.

### Project Delivery & Support
- [Full Architectural Service](https://www.hampsteadarchitecture.co.uk/services/riba-full-architectural-service/): A full architectural service for London homes across the RIBA Plan of Work — briefing, design, planning, technical design, tender, construction and handover.
- [Contract Administration](https://www.hampsteadarchitecture.co.uk/services/contract-administration/): Contract administration for London residential builds — administering the building contract, certifying payments and managing variations to completion.
- [Principal Designer (CDM)](https://www.hampsteadarchitecture.co.uk/services/principal-designer-cdm/): Principal Designer (CDM) for London domestic projects: duties, design risk management and coordination for homeowner construction work.
- [Construction Stage Support](https://www.hampsteadarchitecture.co.uk/services/construction-stage-architectural-support/): Architectural support during construction in London — answering builder queries, issuing supplementary details and coordinating design during the build.

## Guides
- [Planning Drawings vs Building Regulations Drawings](https://www.hampsteadarchitecture.co.uk/guides/planning-drawings-vs-building-regulations-drawings/): Planning drawings and building regulations drawings do different jobs. This guide explains what each shows, why builders need technical drawings, and when structural calculations are required.
- [Architect Fees in London: How They Work](https://www.hampsteadarchitecture.co.uk/guides/architect-fees-london-house-extension/): Architect fees vary with scope, stage and complexity. This guide explains common fee structures, what is included at each stage, and how to compare quotes fairly.
- [Do I Need Planning Permission for a House Extension in Hampstead?](https://www.hampsteadarchitecture.co.uk/guides/do-i-need-planning-permission-for-a-house-extension-in-hampstead/): Whether a Hampstead extension needs planning permission depends on the property. This guide explains permitted development, why Hampstead is often more sensitive, and what to check.
- [What Drawings Does a Licence to Alter Need for a London Flat?](https://www.hampsteadarchitecture.co.uk/guides/licence-to-alter-drawings-london-flats/): Most London flat alterations need freeholder consent through a Licence to Alter. This guide explains the process, the drawings required and how consultants coordinate.
- [Conservation Area Extensions and Consents in Hampstead](https://www.hampsteadarchitecture.co.uk/guides/conservation-area-consent-hampstead/): Conservation areas shape what you can do to a home’s exterior. This guide explains why design quality matters, what is assessed, and how to approach a sensitive proposal.
- [Listed Building Consent: A Guide for London Homeowners](https://www.hampsteadarchitecture.co.uk/guides/listed-building-consent-london-homeowners/): Listed buildings need consent for many alterations, inside and out. This guide explains what is protected, the risks of unauthorised work, and how to prepare a sensitive proposal.
- [Principal Designer Duties for Domestic Projects](https://www.hampsteadarchitecture.co.uk/guides/principal-designer-domestic-projects-london/): The term “Principal Designer” covers two distinct roles. This guide explains the Building Regulations and CDM duties, the domestic-client context, and why written appointments matter.
- [How Long Does a London Extension Take?](https://www.hampsteadarchitecture.co.uk/guides/how-long-does-a-london-extension-take/): Extensions take longer than many expect once design, approvals and construction are added up. This guide sets out a realistic timeline and the common causes of delay.
- [Camden Planning Permission for a Home Extension](https://www.hampsteadarchitecture.co.uk/guides/camden-planning-permission-home-extension/): Camden covers Hampstead, Belsize Park, Primrose Hill and more. This guide explains how the borough approaches home-extension applications, basements and what to prepare — grounded in published Camden materials.
- [RBKC Planning Permission for a Home Extension](https://www.hampsteadarchitecture.co.uk/guides/rbkc-planning-permission-home-extension/): The Royal Borough of Kensington and Chelsea is known for rigorous policy and basement controls. This guide explains its approach to home-extension applications.
- [Side Return Extensions in London: What to Know](https://www.hampsteadarchitecture.co.uk/guides/side-return-extensions-london/): The side return is one of the most effective extensions for a London terrace. This guide explains how it works, what it involves, and the practical issues to plan for.
- [London Basements: Process, Cost Drivers and Risks](https://www.hampsteadarchitecture.co.uk/guides/london-basement-process-and-considerations/): Basements add space without changing the street scene, but they are the most demanding home projects. This guide sets out the process, the cost drivers and the risks.
- [The Party Wall Act Explained for London Homeowners](https://www.hampsteadarchitecture.co.uk/guides/party-wall-act-explained-london/): Most London extensions and basements engage the Party Wall etc. Act 1996. This guide explains when it applies, what the process involves, and how to plan for it.
- [Choosing and Working With a Builder in London](https://www.hampsteadarchitecture.co.uk/guides/choosing-a-builder-for-your-london-project/): The builder you choose, and the basis you appoint them on, shapes the whole construction stage. This guide explains how to tender fairly and work well with a contractor.
- [Permitted Development Explained for London Houses](https://www.hampsteadarchitecture.co.uk/guides/permitted-development-explained-london/): Permitted development can let some works proceed without a planning application — but in London it is heavily restricted. This guide explains what it covers and where it stops.
- [Planning Conditions Explained: After You Get Permission](https://www.hampsteadarchitecture.co.uk/guides/planning-conditions-explained-london/): A planning permission almost always comes with conditions. This guide explains what they are, why pre-commencement conditions matter, and how they are discharged.
- [What Affects the Cost of a House Extension in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-house-extension-costs-london/): Extension costs vary widely with the property and the brief. This guide explains the factors that drive the price, so you can budget realistically — without relying on a single headline figure.
- [What Affects the Cost of a Loft Conversion in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-loft-conversion-costs-london/): Loft costs depend heavily on the type of conversion and the work it triggers elsewhere in the house. This guide sets out the main cost drivers, without quoting a headline figure.
- [What Affects the Cost of a Basement in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-basement-costs-london/): Basements are the most cost-intensive home projects. This guide explains what drives the price, from excavation and waterproofing to party walls and borough policy — with no headline figure.
- [Planning Application Fees and Costs in London (2026)](https://www.hampsteadarchitecture.co.uk/guides/planning-application-costs-london/): A planning application has two main fees: the statutory fee paid to the council and the professional fee for drawings and submission. This guide separates both from third-party and construction costs.
- [Do I Need an Architect for an Extension?](https://www.hampsteadarchitecture.co.uk/guides/do-i-need-an-architect-for-an-extension/): You are not legally required to use an architect for most home extensions — but you do need proper drawings and, usually, approvals. This guide separates what the law demands from what a good outcome needs, and explains when paid design genuinely pays for itself.
- [How to Choose an Architect in London](https://www.hampsteadarchitecture.co.uk/guides/how-to-choose-an-architect-in-london/): Choosing an architect is one of the earliest and most consequential decisions on a London home project. This guide explains how to verify credentials, compare fee proposals fairly, judge relevant experience, and recognise the red flags worth walking away from.
- [Lawful Development Certificate Fees, Evidence & the 10-Year Rule in London](https://www.hampsteadarchitecture.co.uk/guides/lawful-development-certificates-london/): A Lawful Development Certificate is the formal, legal confirmation that works are lawful — either because they are permitted development or because they have become immune from enforcement. This guide explains the two types, why a certificate is worth having even when you are confident, the enforcement time limits, the fee and the evidence required.
- [What Affects the Cost of a Kitchen Extension in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-kitchen-extension-costs-london/): A kitchen extension bundles several trades — structure, glazing, drainage and the kitchen itself — into one project, so a single rate per square metre rarely holds. This guide sets out the real cost drivers, from a side-return infill to the rear opening and the fit-out, and is explicit about the one number nobody can promise up front: the build cost.
- [What Affects the Cost of a Side-Return Extension in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-side-return-extension-costs-london/): A side-return infill looks small but touches a boundary, a roof, a drain and often a neighbour, and each of those is a cost driver. This guide sets out what actually moves the price — without quoting a build figure nobody can promise up front.
- [What Affects the Cost of a House Refurbishment in London](https://www.hampsteadarchitecture.co.uk/guides/what-affects-house-refurbishment-costs-london/): Refurbishing an existing London home can cost as much as building new space, because so much of the value is hidden inside the existing envelope. This guide sets out what drives the price — from a cosmetic refresh to a full strip-out — without quoting a headline figure.
- [Biodiversity Net Gain and Home Extensions in London](https://www.hampsteadarchitecture.co.uk/guides/biodiversity-net-gain-home-extensions-london/): Biodiversity Net Gain has applied to development in England since 2024, but householder applications — the route most extensions, lofts and conservatories use — are exempt. This guide sets out when BNG can still apply to a home project, and what the exemptions actually require.
- [Will You Pay CIL on a London Extension?](https://www.hampsteadarchitecture.co.uk/guides/community-infrastructure-levy-london-extensions/): The Community Infrastructure Levy (CIL) is a local charge on new floorspace. Most home extensions are outside it, but larger extensions, annexes and new dwellings can be caught — and the exemptions are lost if you do not claim them before work starts. This guide explains the rules and the common trap.
- [Garden Rooms and Outbuildings: Do You Need Planning Permission?](https://www.hampsteadarchitecture.co.uk/guides/garden-rooms-outbuildings-planning-permission-london/): A garden room or outbuilding can often be built under permitted development — but the limits are specific, and in London a conservation area, an Article 4 direction or a listed building frequently changes the answer. This guide sets out the rules and the common traps.
- [Converting a House into Flats in London: The Planning Position](https://www.hampsteadarchitecture.co.uk/guides/converting-a-house-into-flats-london/): Subdividing a house into flats — or combining flats back into a house — always requires full planning permission in England. This guide explains why, what London boroughs assess, and the building regulations and consents that come with it.
- [Do You Need Planning Permission for a Loft Conversion in London?](https://www.hampsteadarchitecture.co.uk/guides/loft-conversion-planning-permission-london/): Many loft conversions are permitted development — but not in a conservation area, where the rights are removed, and not for flats. This guide sets out the volume and design limits, and why so many prime-London lofts need a planning application.
- [Rear Extensions: Permitted Development and the Prior Approval Route](https://www.hampsteadarchitecture.co.uk/guides/rear-extension-permitted-development-prior-approval-london/): A single-storey rear extension can often be permitted development, and a deeper one may be possible through the prior approval neighbour-consultation scheme. This guide sets out both, and the conservation-area limits that matter in prime London.
- [Trees, TPOs and Conservation Areas: What You Can and Cannot Do](https://www.hampsteadarchitecture.co.uk/guides/tree-preservation-orders-conservation-area-trees-london/): A protected tree can shape — or stop — a London home project, and unauthorised work is a criminal offence. This guide explains Tree Preservation Orders, the notice you must give for trees in a conservation area, and what it means for extensions and basements.
- [Change of Use for Homeowners: Working From Home, HMOs and Short Lets](https://www.hampsteadarchitecture.co.uk/guides/change-of-use-home-business-hmo-london/): Using your home differently — working from it, letting rooms, or short-letting it — can cross into a change of use that needs planning permission. This guide sets out where the lines fall for London homeowners.
- [Paving a Front Garden and Dropped Kerbs: The Planning Rules](https://www.hampsteadarchitecture.co.uk/guides/paving-front-garden-dropped-kerb-planning-permission-london/): Paving a front garden for parking can need planning permission — but a permeable surface usually avoids it, whatever the size. This guide explains the 5 square metre rule, the drainage reason behind it, and the separate consent a dropped kerb requires.
- [Replacing Windows and Doors in a London Conservation Area](https://www.hampsteadarchitecture.co.uk/guides/replacing-windows-doors-conservation-area-london/): Replacing windows and doors is often outside planning control — but in a conservation area with an Article 4 direction, and for flats and listed buildings, the position changes. This guide sets out when permission is needed.
- [Solar Panels and Heat Pumps: Do You Need Planning Permission?](https://www.hampsteadarchitecture.co.uk/guides/solar-panels-heat-pumps-planning-permission-london/): Solar panels and air source heat pumps are usually permitted development — the heat pump rules were relaxed in 2025, and the solar rules were rewritten from 27 August 2026 to cover plug-in and balcony panels, relax the wall and ground-mounted limits and extend the prior-approval step on designated land — but conservation areas and listed buildings change the picture. This guide sets out the limits.
- [Building Over a Public Sewer: Build-Over Agreements Explained](https://www.hampsteadarchitecture.co.uk/guides/building-over-a-public-sewer-build-over-agreement-london/): A public sewer running through a London garden can shape an extension or basement, and building over or near one needs a build-over agreement from the water company. This guide explains when it is required and why it is separate from planning permission.
- [Basement Impact Assessment: What London Boroughs Require](https://www.hampsteadarchitecture.co.uk/guides/basement-impact-assessment-london/): A Basement Impact Assessment is site-specific technical evidence for a basement planning application. It tests drainage, flooding, groundwater and structural stability; the trigger, scope and review process depend on the borough and proposal.
- [Refused Planning Permission? Householder Appeals Explained](https://www.hampsteadarchitecture.co.uk/guides/householder-planning-appeal-refused-application-london/): A refusal is not the end of the road, but the options are time-limited. This guide explains the 12-week householder appeal deadline, how the Planning Inspectorate decides appeals, and when resubmitting a revised scheme is the better route.
- [Building Regulations Approval: Full Plans or a Building Notice?](https://www.hampsteadarchitecture.co.uk/guides/building-regulations-approval-full-plans-building-notice-london/): Almost every building project needs building regulations approval, separately from planning permission. This guide explains the two routes — full plans and a building notice — who you apply to, and the completion certificate you will need when you sell.
- [Demolition in a Conservation Area: When You Need Permission](https://www.hampsteadarchitecture.co.uk/guides/demolition-conservation-area-planning-permission-london/): Demolishing a building — or a substantial part of one — in a conservation area usually needs planning permission, and doing it without is a criminal offence. This guide explains "relevant demolition", the thresholds, and the position outside conservation areas.
- [Do You Need Planning Permission in London? The Complete Guide](https://www.hampsteadarchitecture.co.uk/guides/do-i-need-planning-permission-london/): Whether your London project needs planning permission depends on what you are doing and where. This guide sets out the principles, then points you to the detail for extensions, lofts, conversions, heritage work, basements and more.
- [What Happens After Planning Permission in London](https://www.hampsteadarchitecture.co.uk/guides/what-happens-after-planning-permission-london/): Planning permission is a green light on principle, not a green light to dig. This guide walks through the real next steps London homeowners face after approval.
- [How to Prepare for an Architect Consultation in London](https://www.hampsteadarchitecture.co.uk/guides/how-to-prepare-for-an-architect-consultation-london/): A short, practical checklist for London homeowners so the first conversation produces a clear route and fee, not a vague sales call.
- [What Planning Officers Assess on London House Extensions](https://www.hampsteadarchitecture.co.uk/guides/what-planning-officers-assess-house-extensions-london/): A practical map of what local planning authorities weigh on householder extensions in prime London — so you design a case, not just a bigger kitchen.
- [Basement Planning in Camden vs RBKC](https://www.hampsteadarchitecture.co.uk/guides/basement-planning-camden-vs-rbkc/): Two of London’s strictest basement regimes side by side — so NW3 and W8 clients stop assuming the rules are the same.
- [Loft Conversion Process in London: Planning to Build](https://www.hampsteadarchitecture.co.uk/guides/loft-conversion-process-london-planning-to-build/): The full sequence from roof survey to tender — so loft companies and homeowners stop treating planning drawings as build information.
- [Side Return Extension Process in London](https://www.hampsteadarchitecture.co.uk/guides/side-return-extension-process-london/): The real sequence for Victorian closet-wing infills — geometry, neighbours, drains and consents — not just a glass roof mood board.
- [Licence to Alter Process for London Flats](https://www.hampsteadarchitecture.co.uk/guides/licence-to-alter-process-london-flats/): How freeholder consent actually works on London flats — what to prepare, what surveyors scrutinise, and how to sequence planning so works do not start half-approved.
- [Planning Drawings Validation Checklist for London Homes](https://www.hampsteadarchitecture.co.uk/guides/planning-drawings-validation-checklist-london/): A practical validation checklist so applications start the determination clock on the first submission — grounded in published borough requirements such as Southwark’s householder checklist.
- [Dulwich Estate Scheme of Management Consent](https://www.hampsteadarchitecture.co.uk/guides/dulwich-estate-scheme-of-management-consent/): Many Dulwich freeholds need written Estate approval for external works — separate from and additional to local authority planning. Here is the practical dual-track process.
- [Planning Permission vs Licence to Alter in London](https://www.hampsteadarchitecture.co.uk/guides/planning-permission-vs-licence-to-alter-london/): Planning permission is public law via the local authority. A Licence to Alter is private consent under the lease. Many London flat and converted-house projects need both — plus building regulations.
- [Camden vs Westminster Householder Planning](https://www.hampsteadarchitecture.co.uk/guides/camden-vs-westminster-householder-planning/): Addresses on the Camden–Westminster edge (St John’s Wood, South Hampstead, Marylebone, Regent’s Park fringes) need the correct LPA before any red-line drawing is issued. The two boroughs do not share one householder culture.
- [Dual Consent: Trust, Estate and Council in London](https://www.hampsteadarchitecture.co.uk/guides/dual-consent-trust-estate-and-council-london/): Some London neighbourhoods require private-law Trust or Estate approval as well as local authority planning. Treating them as one process is how projects stall after a grant.
- [Basement Planning Evidence Across London Boroughs](https://www.hampsteadarchitecture.co.uk/guides/basement-planning-evidence-london-boroughs/): Basements are almost always full planning territory in prime London. Evidence packages differ by LPA: Article 4s, BIAs, garden extent, estate dual consent and dual-borough authority checks.
- [What Freeholder Surveyors Want on Licence to Alter Packs](https://www.hampsteadarchitecture.co.uk/guides/what-freeholder-surveyors-want-on-licence-to-alter/): Licence to Alter packs fail when they look like furniture layouts. Freeholder surveyors review risk: structure, drainage, fire, acoustics and construction method — often at building-control detail.
- [Who Owns the Loft Space in London Flats?](https://www.hampsteadarchitecture.co.uk/guides/who-owns-the-loft-space-london-flats/): In converted houses and mansion blocks the loft is frequently outside the flat lease. Freeholder consent can stop a loft before planning is even the main issue.
- [Camden Householder Planning Decisions: 2025 Data Study](https://www.hampsteadarchitecture.co.uk/guides/camden-householder-planning-decisions-2025/): A reproducible analysis of Camden’s 2025 householder decision records — what was granted, refused or withdrawn, how long records ran, and what the figures cannot predict.

## Journal
- [Solar Panels and Permitted Development: What Changed on 27 August 2026](https://www.hampsteadarchitecture.co.uk/journal/solar-permitted-development-changes-august-2026/): From 27 August 2026 the solar permitted development rules were rewritten: plug-in solar is expressly covered for the first time — including for blocks of flats — houses get reworked limits, and conservation areas carry a wider restriction. A one-year saving preserves what the rewrite removed.
- [The National Scheme of Delegation: Officer Decisions from 31 October 2026](https://www.hampsteadarchitecture.co.uk/journal/national-scheme-of-delegation-31-october-2026/): From 31 October 2026, householder planning applications in England — the typical extension or loft application — must be decided by planning officers, not a committee. Here is what changes, what does not, and the exceptions worth knowing.
- [The December 2026 Planning Fee Increase: What Is Changing](https://www.hampsteadarchitecture.co.uk/journal/planning-fees-december-2026-what-changes/): Draft regulations laid in July would lift the householder planning fee from £548 to £575 and put a flat £310 fee on most prior approvals from 8 December 2026 — if Parliament approves. What that means for an autumn submission.
- [Blackheath: Dual Borough Before Any Basement Box](https://www.hampsteadarchitecture.co.uk/journal/blackheath-dual-borough-before-basement/): SE3 is not one planning culture. Fix Royal Borough of Greenwich or Lewisham before lightwells and temporary works are drawn.
- [Heath-Edge Basements Are Not Village Digs](https://www.hampsteadarchitecture.co.uk/journal/heath-edge-basements-are-not-village-digs/): A dig beside Hampstead Heath is a slope, tree and dual-borough project. Treat it like a flat village rear extension and the package fails early.
- [Hampstead Garden Suburb Trust Consent Is Not Barnet Planning](https://www.hampsteadarchitecture.co.uk/journal/hgs-trust-consent-is-not-barnet-planning/): In Hampstead Garden Suburb, Barnet planning and Hampstead Garden Suburb Trust consent are parallel tracks. Designing for only one is how redesign starts after a grant.
- [Check Who Owns the Loft Before the Dormer](https://www.hampsteadarchitecture.co.uk/journal/check-who-owns-the-loft-before-the-dormer/): A beautiful dormer drawing is worthless if the lease never included the roof void. Ownership first.
- [One Design for Planning and Licence to Alter](https://www.hampsteadarchitecture.co.uk/journal/planning-and-licence-to-alter-same-design/): Freeholder surveyors and planning officers read different packs. They should not be reading different designs.
- [Why Invalid Planning Applications Waste Months](https://www.hampsteadarchitecture.co.uk/journal/why-invalid-planning-applications-waste-months/): An invalid application is not “slow planning”. It is a package that never entered assessment. Here is what complete looks like.
- [Why Dulwich Projects Stall After a Southwark Grant](https://www.hampsteadarchitecture.co.uk/journal/dulwich-estate-consent-is-not-southwark-planning/): On much of the Dulwich Estate, written Scheme of Management approval sits beside Southwark planning. Treating them as the same process is how projects stall after a grant.
- [Why Highgate Needs a Borough Check First](https://www.hampsteadarchitecture.co.uk/journal/why-highgate-needs-a-borough-check-first/): Highgate is one place in the mind and three authorities on the map. Get the borough wrong and the planning package fails before design is even read.
- [What a Householder Planning Drawing Package Actually Contains](https://www.hampsteadarchitecture.co.uk/journal/what-a-householder-planning-drawing-package-actually-contains/): Owners often buy “planning drawings” without knowing what the fixed fee covers — and what sits outside it. Here is the honest sheet list.
- [Biodiversity Net Gain: The Small-Sites Exemption in Force since 6 August 2026](https://www.hampsteadarchitecture.co.uk/journal/biodiversity-net-gain-small-sites-exemption-2026/): Since 6 August 2026, developments on sites of 0.2 hectares or less have been exempt from mandatory Biodiversity Net Gain. For a home extension it changes nothing — you were already exempt — but for small plots and new dwellings it is a real shift.
- [Proposed Changes to Householder Permitted Development: Where Things Stand](https://www.hampsteadarchitecture.co.uk/journal/householder-permitted-development-proposals-2026/): The 2024 proposals to enlarge householder permitted development have not become law. As of late August 2026 they remain proposal-only — and in conservation areas they may not apply at all.
- [Heat Pumps and Permitted Development: What Changed in 2025](https://www.hampsteadarchitecture.co.uk/journal/heat-pump-permitted-development-changes-2025/): The 2025 permitted development changes made air source heat pumps far easier to install across most of England. In prime London — conservation areas, listed buildings and flats — they change surprisingly little.
- [The April 2026 Planning Fee Increase: What Changed](https://www.hampsteadarchitecture.co.uk/journal/planning-fees-april-2026-what-you-pay/): A dated explanation of the April 2026 increase that set the householder fee at £548 — and why the current figure must be checked before an application.
- [Buying With a Project in Mind: What to Check First](https://www.hampsteadarchitecture.co.uk/journal/buying-with-a-project-in-mind/): If your offer assumes you can extend, convert or combine, it is worth testing that assumption before you exchange — not after.
- [What Makes Prime London Homes Different to Design](https://www.hampsteadarchitecture.co.uk/journal/what-makes-prime-london-residential-architecture-different/): In prime London, the brief is rarely the hard part. The constraints — and the standard of coordination they demand — are what set this work apart.
- [Why Early Feasibility Saves Time and Money on London Projects](https://www.hampsteadarchitecture.co.uk/journal/why-early-feasibility-saves-time-and-money/): The most expensive mistakes are made before design even begins — on untested assumptions about what a property can become.
- [Reading a London Street: How Context Shapes Good Design](https://www.hampsteadarchitecture.co.uk/journal/reading-a-london-street-how-context-shapes-design/): Before deciding what to add to a London home, it pays to read the street it sits in — its rhythm, materials and lines.

## Areas covered
- [Hampstead (Camden)](https://www.hampsteadarchitecture.co.uk/areas/hampstead-architects/)
- [Belsize Park (Camden)](https://www.hampsteadarchitecture.co.uk/areas/belsize-park-architects/)
- [Highgate (Camden / Haringey / Islington)](https://www.hampsteadarchitecture.co.uk/areas/highgate-architects/)
- [St John's Wood (Westminster / Camden)](https://www.hampsteadarchitecture.co.uk/areas/st-johns-wood-architects/)
- [Primrose Hill (Camden)](https://www.hampsteadarchitecture.co.uk/areas/primrose-hill-architects/)
- [Hampstead Garden Suburb (Barnet)](https://www.hampsteadarchitecture.co.uk/areas/hampstead-garden-suburb-architects/)
- [Maida Vale (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/maida-vale-architects/)
- [Marylebone (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/marylebone-architects/)
- [Mayfair (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/mayfair-architects/)
- [Belgravia (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/belgravia-architects/)
- [Knightsbridge (Westminster / Kensington & Chelsea)](https://www.hampsteadarchitecture.co.uk/areas/knightsbridge-architects/)
- [Kensington (Kensington & Chelsea)](https://www.hampsteadarchitecture.co.uk/areas/kensington-architects/)
- [Chelsea (Kensington & Chelsea)](https://www.hampsteadarchitecture.co.uk/areas/chelsea-architects/)
- [Notting Hill (Kensington & Chelsea / Westminster)](https://www.hampsteadarchitecture.co.uk/areas/notting-hill-architects/)
- [Holland Park (Kensington & Chelsea)](https://www.hampsteadarchitecture.co.uk/areas/holland-park-architects/)
- [South Kensington (Kensington & Chelsea)](https://www.hampsteadarchitecture.co.uk/areas/south-kensington-architects/)
- [Westminster (City of Westminster)](https://www.hampsteadarchitecture.co.uk/areas/westminster-architects/)
- [Bloomsbury (Camden)](https://www.hampsteadarchitecture.co.uk/areas/bloomsbury-architects/)
- [Fitzrovia (Camden / Westminster)](https://www.hampsteadarchitecture.co.uk/areas/fitzrovia-architects/)
- [Fulham (Hammersmith & Fulham)](https://www.hampsteadarchitecture.co.uk/areas/fulham-architects/)
- [Parsons Green (Hammersmith & Fulham)](https://www.hampsteadarchitecture.co.uk/areas/parsons-green-architects/)
- [Chiswick (Hounslow)](https://www.hampsteadarchitecture.co.uk/areas/chiswick-architects/)
- [Battersea (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/battersea-architects/)
- [Wandsworth (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/wandsworth-architects/)
- [Richmond (Richmond upon Thames)](https://www.hampsteadarchitecture.co.uk/areas/richmond-architects/)
- [Islington (Islington)](https://www.hampsteadarchitecture.co.uk/areas/islington-architects/)
- [Camden (Camden)](https://www.hampsteadarchitecture.co.uk/areas/camden-architects/)
- [Swiss Cottage (Camden)](https://www.hampsteadarchitecture.co.uk/areas/swiss-cottage-architects/)
- [South Hampstead (Camden)](https://www.hampsteadarchitecture.co.uk/areas/south-hampstead-architects/)
- [West Hampstead (Camden)](https://www.hampsteadarchitecture.co.uk/areas/west-hampstead-architects/)
- [Hampstead Heath (Camden / Barnet)](https://www.hampsteadarchitecture.co.uk/areas/hampstead-heath-architects/)
- [Camden Town (Camden)](https://www.hampsteadarchitecture.co.uk/areas/camden-town-architects/)
- [Regent's Park (Westminster / Camden)](https://www.hampsteadarchitecture.co.uk/areas/regents-park-architects/)
- [Angel (Islington)](https://www.hampsteadarchitecture.co.uk/areas/angel-islington-architects/)
- [Highbury (Islington)](https://www.hampsteadarchitecture.co.uk/areas/highbury-architects/)
- [Dartmouth Park (Camden)](https://www.hampsteadarchitecture.co.uk/areas/dartmouth-park-architects/)
- [Canonbury (Islington)](https://www.hampsteadarchitecture.co.uk/areas/canonbury-architects/)
- [Bayswater (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/bayswater-architects/)
- [Lancaster Gate (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/lancaster-gate-architects/)
- [Paddington (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/paddington-architects/)
- [Pimlico (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/pimlico-architects/)
- [Victoria (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/victoria-architects/)
- [Soho (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/soho-architects/)
- [Covent Garden (Westminster / Camden)](https://www.hampsteadarchitecture.co.uk/areas/covent-garden-architects/)
- [Holborn (Camden / City of London)](https://www.hampsteadarchitecture.co.uk/areas/holborn-architects/)
- [St James's (Westminster)](https://www.hampsteadarchitecture.co.uk/areas/st-jamess-architects/)
- [Earl's Court (Kensington & Chelsea / Hammersmith & Fulham)](https://www.hampsteadarchitecture.co.uk/areas/earls-court-architects/)
- [Wandsworth Town (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/wandsworth-town-architects/)
- [Clapham Junction (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/clapham-junction-architects/)
- [Abbey Wood](https://www.hampsteadarchitecture.co.uk/areas/abbey-wood-architects/)
- [Acton](https://www.hampsteadarchitecture.co.uk/areas/acton-architects/)
- [Alexandra Park](https://www.hampsteadarchitecture.co.uk/areas/alexandra-park-architects/)
- [Archway](https://www.hampsteadarchitecture.co.uk/areas/archway-architects/)
- [Barbican](https://www.hampsteadarchitecture.co.uk/areas/barbican-architects/)
- [Barnet](https://www.hampsteadarchitecture.co.uk/areas/barnet-architects/)
- [Beckenham](https://www.hampsteadarchitecture.co.uk/areas/beckenham-architects/)
- [Bedford Park](https://www.hampsteadarchitecture.co.uk/areas/bedford-park-architects/)
- [Bermondsey](https://www.hampsteadarchitecture.co.uk/areas/bermondsey-architects/)
- [Bethnal Green](https://www.hampsteadarchitecture.co.uk/areas/bethnal-green-architects/)
- [Bickley](https://www.hampsteadarchitecture.co.uk/areas/bickley-architects/)
- [Bow](https://www.hampsteadarchitecture.co.uk/areas/bow-architects/)
- [Brent](https://www.hampsteadarchitecture.co.uk/areas/brent-architects/)
- [Brentford](https://www.hampsteadarchitecture.co.uk/areas/brentford-architects/)
- [Brixton](https://www.hampsteadarchitecture.co.uk/areas/brixton-architects/)
- [Brockley](https://www.hampsteadarchitecture.co.uk/areas/brockley-architects/)
- [Bromley](https://www.hampsteadarchitecture.co.uk/areas/bromley-architects/)
- [Brondesbury Park](https://www.hampsteadarchitecture.co.uk/areas/brondesbury-park-architects/)
- [Brook Green](https://www.hampsteadarchitecture.co.uk/areas/brook-green-architects/)
- [Camberwell](https://www.hampsteadarchitecture.co.uk/areas/camberwell-architects/)
- [Canary Wharf](https://www.hampsteadarchitecture.co.uk/areas/canary-wharf-architects/)
- [Catford](https://www.hampsteadarchitecture.co.uk/areas/catford-architects/)
- [Central London](https://www.hampsteadarchitecture.co.uk/areas/central-london-architects/)
- [Charlton](https://www.hampsteadarchitecture.co.uk/areas/charlton-architects/)
- [Chingford](https://www.hampsteadarchitecture.co.uk/areas/chingford-architects/)
- [Chislehurst](https://www.hampsteadarchitecture.co.uk/areas/chislehurst-architects/)
- [City of London](https://www.hampsteadarchitecture.co.uk/areas/city-of-london-architects/)
- [Clapton](https://www.hampsteadarchitecture.co.uk/areas/clapton-architects/)
- [Clerkenwell](https://www.hampsteadarchitecture.co.uk/areas/clerkenwell-architects/)
- [Cockfosters](https://www.hampsteadarchitecture.co.uk/areas/cockfosters-architects/)
- [Colindale](https://www.hampsteadarchitecture.co.uk/areas/colindale-architects/)
- [Cricklewood](https://www.hampsteadarchitecture.co.uk/areas/cricklewood-architects/)
- [Crystal Palace](https://www.hampsteadarchitecture.co.uk/areas/crystal-palace-architects/)
- [Dalston](https://www.hampsteadarchitecture.co.uk/areas/dalston-architects/)
- [De Beauvoir](https://www.hampsteadarchitecture.co.uk/areas/de-beauvoir-architects/)
- [Deptford](https://www.hampsteadarchitecture.co.uk/areas/deptford-architects/)
- [Earlsfield](https://www.hampsteadarchitecture.co.uk/areas/earlsfield-architects/)
- [East Dulwich](https://www.hampsteadarchitecture.co.uk/areas/east-dulwich-architects/)
- [East Sheen & Mortlake](https://www.hampsteadarchitecture.co.uk/areas/east-sheen-architects/)
- [Edgware](https://www.hampsteadarchitecture.co.uk/areas/edgware-architects/)
- [Elephant and Castle](https://www.hampsteadarchitecture.co.uk/areas/elephant-and-castle-architects/)
- [Eltham](https://www.hampsteadarchitecture.co.uk/areas/eltham-architects/)
- [Enfield](https://www.hampsteadarchitecture.co.uk/areas/enfield-architects/)
- [Finsbury Park](https://www.hampsteadarchitecture.co.uk/areas/finsbury-park-architects/)
- [Forest Gate](https://www.hampsteadarchitecture.co.uk/areas/forest-gate-architects/)
- [Forest Hill](https://www.hampsteadarchitecture.co.uk/areas/forest-hill-architects/)
- [Gospel Oak](https://www.hampsteadarchitecture.co.uk/areas/gospel-oak-architects/)
- [Hadley Wood](https://www.hampsteadarchitecture.co.uk/areas/hadley-wood-architects/)
- [Hampton](https://www.hampsteadarchitecture.co.uk/areas/hampton-architects/)
- [Hanwell](https://www.hampsteadarchitecture.co.uk/areas/hanwell-architects/)
- [Haringey](https://www.hampsteadarchitecture.co.uk/areas/haringey-architects/)
- [Harlesden](https://www.hampsteadarchitecture.co.uk/areas/harlesden-architects/)
- [Harringay](https://www.hampsteadarchitecture.co.uk/areas/harringay-architects/)
- [Harrow on the Hill](https://www.hampsteadarchitecture.co.uk/areas/harrow-on-the-hill-architects/)
- [Hatch End](https://www.hampsteadarchitecture.co.uk/areas/hatch-end-architects/)
- [Hendon](https://www.hampsteadarchitecture.co.uk/areas/hendon-architects/)
- [Highams Park](https://www.hampsteadarchitecture.co.uk/areas/highams-park-architects/)
- [Hither Green](https://www.hampsteadarchitecture.co.uk/areas/hither-green-architects/)
- [Holloway](https://www.hampsteadarchitecture.co.uk/areas/holloway-architects/)
- [Honor Oak](https://www.hampsteadarchitecture.co.uk/areas/honor-oak-architects/)
- [Hornsey](https://www.hampsteadarchitecture.co.uk/areas/hornsey-architects/)
- [Isleworth](https://www.hampsteadarchitecture.co.uk/areas/isleworth-architects/)
- [Kennington](https://www.hampsteadarchitecture.co.uk/areas/kennington-architects/)
- [Kensal Rise](https://www.hampsteadarchitecture.co.uk/areas/kensal-rise-architects/)
- [Kilburn](https://www.hampsteadarchitecture.co.uk/areas/kilburn-architects/)
- [King's Cross](https://www.hampsteadarchitecture.co.uk/areas/kings-cross-architects/)
- [Kingston](https://www.hampsteadarchitecture.co.uk/areas/kingston-architects/)
- [Ladbroke Grove](https://www.hampsteadarchitecture.co.uk/areas/ladbroke-grove-architects/)
- [Ladywell](https://www.hampsteadarchitecture.co.uk/areas/ladywell-architects/)
- [Lambeth](https://www.hampsteadarchitecture.co.uk/areas/lambeth-architects/)
- [Lee](https://www.hampsteadarchitecture.co.uk/areas/lee-architects/)
- [Lewisham](https://www.hampsteadarchitecture.co.uk/areas/lewisham-architects/)
- [Leyton](https://www.hampsteadarchitecture.co.uk/areas/leyton-architects/)
- [Leytonstone](https://www.hampsteadarchitecture.co.uk/areas/leytonstone-architects/)
- [Limehouse](https://www.hampsteadarchitecture.co.uk/areas/limehouse-architects/)
- [Little Venice](https://www.hampsteadarchitecture.co.uk/areas/little-venice-architects/)
- [London Fields](https://www.hampsteadarchitecture.co.uk/areas/london-fields-architects/)
- [Merton Park](https://www.hampsteadarchitecture.co.uk/areas/merton-park-architects/)
- [Mile End](https://www.hampsteadarchitecture.co.uk/areas/mile-end-architects/)
- [Mill Hill](https://www.hampsteadarchitecture.co.uk/areas/mill-hill-architects/)
- [Morden](https://www.hampsteadarchitecture.co.uk/areas/morden-architects/)
- [New Malden](https://www.hampsteadarchitecture.co.uk/areas/new-malden-architects/)
- [Nine Elms](https://www.hampsteadarchitecture.co.uk/areas/nine-elms-architects/)
- [North Finchley](https://www.hampsteadarchitecture.co.uk/areas/north-finchley-architects/)
- [Nunhead](https://www.hampsteadarchitecture.co.uk/areas/nunhead-architects/)
- [Orpington](https://www.hampsteadarchitecture.co.uk/areas/orpington-architects/)
- [Osterley](https://www.hampsteadarchitecture.co.uk/areas/osterley-architects/)
- [Palmers Green](https://www.hampsteadarchitecture.co.uk/areas/palmers-green-architects/)
- [Peckham](https://www.hampsteadarchitecture.co.uk/areas/peckham-architects/)
- [Penge](https://www.hampsteadarchitecture.co.uk/areas/penge-architects/)
- [Petersham & Ham](https://www.hampsteadarchitecture.co.uk/areas/petersham-and-ham-architects/)
- [Petts Wood](https://www.hampsteadarchitecture.co.uk/areas/petts-wood-architects/)
- [Pinner](https://www.hampsteadarchitecture.co.uk/areas/pinner-architects/)
- [Poplar](https://www.hampsteadarchitecture.co.uk/areas/poplar-architects/)
- [Queen’s Park](https://www.hampsteadarchitecture.co.uk/areas/queens-park-architects/)
- [Raynes Park](https://www.hampsteadarchitecture.co.uk/areas/raynes-park-architects/)
- [Rotherhithe](https://www.hampsteadarchitecture.co.uk/areas/rotherhithe-architects/)
- [Seven Sisters](https://www.hampsteadarchitecture.co.uk/areas/seven-sisters-architects/)
- [Shoreditch](https://www.hampsteadarchitecture.co.uk/areas/shoreditch-architects/)
- [Sidcup](https://www.hampsteadarchitecture.co.uk/areas/sidcup-architects/)
- [South Woodford](https://www.hampsteadarchitecture.co.uk/areas/south-woodford-architects/)
- [Southfields](https://www.hampsteadarchitecture.co.uk/areas/southfields-architects/)
- [Southgate](https://www.hampsteadarchitecture.co.uk/areas/southgate-architects/)
- [Southwark](https://www.hampsteadarchitecture.co.uk/areas/southwark-architects/)
- [Spitalfields](https://www.hampsteadarchitecture.co.uk/areas/spitalfields-architects/)
- [St Margarets](https://www.hampsteadarchitecture.co.uk/areas/st-margarets-architects/)
- [Stanmore](https://www.hampsteadarchitecture.co.uk/areas/stanmore-architects/)
- [Stockwell](https://www.hampsteadarchitecture.co.uk/areas/stockwell-architects/)
- [Stratford](https://www.hampsteadarchitecture.co.uk/areas/stratford-architects/)
- [Streatham](https://www.hampsteadarchitecture.co.uk/areas/streatham-architects/)
- [Stroud Green](https://www.hampsteadarchitecture.co.uk/areas/stroud-green-architects/)
- [Surbiton](https://www.hampsteadarchitecture.co.uk/areas/surbiton-architects/)
- [Sydenham](https://www.hampsteadarchitecture.co.uk/areas/sydenham-architects/)
- [Teddington](https://www.hampsteadarchitecture.co.uk/areas/teddington-architects/)
- [Telegraph Hill](https://www.hampsteadarchitecture.co.uk/areas/telegraph-hill-architects/)
- [Temple Fortune](https://www.hampsteadarchitecture.co.uk/areas/temple-fortune-architects/)
- [Tooting](https://www.hampsteadarchitecture.co.uk/areas/tooting-architects/)
- [Tottenham Hale](https://www.hampsteadarchitecture.co.uk/areas/tottenham-hale-architects/)
- [Tottenham](https://www.hampsteadarchitecture.co.uk/areas/tottenham-architects/)
- [Totteridge](https://www.hampsteadarchitecture.co.uk/areas/totteridge-architects/)
- [Twickenham](https://www.hampsteadarchitecture.co.uk/areas/twickenham-architects/)
- [Vauxhall](https://www.hampsteadarchitecture.co.uk/areas/vauxhall-architects/)
- [Victoria Park Village](https://www.hampsteadarchitecture.co.uk/areas/victoria-park-village-architects/)
- [Walthamstow](https://www.hampsteadarchitecture.co.uk/areas/walthamstow-architects/)
- [Wandsworth Common](https://www.hampsteadarchitecture.co.uk/areas/wandsworth-common-architects/)
- [Wanstead](https://www.hampsteadarchitecture.co.uk/areas/wanstead-architects/)
- [Wapping](https://www.hampsteadarchitecture.co.uk/areas/wapping-architects/)
- [Waterloo](https://www.hampsteadarchitecture.co.uk/areas/waterloo-architects/)
- [West Dulwich](https://www.hampsteadarchitecture.co.uk/areas/west-dulwich-architects/)
- [West Kensington](https://www.hampsteadarchitecture.co.uk/areas/west-kensington-architects/)
- [West Norwood](https://www.hampsteadarchitecture.co.uk/areas/west-norwood-architects/)
- [Whetstone](https://www.hampsteadarchitecture.co.uk/areas/whetstone-architects/)
- [Whitechapel](https://www.hampsteadarchitecture.co.uk/areas/whitechapel-architects/)
- [Willesden](https://www.hampsteadarchitecture.co.uk/areas/willesden-architects/)
- [Winchmore Hill](https://www.hampsteadarchitecture.co.uk/areas/winchmore-hill-architects/)
- [Wood Green](https://www.hampsteadarchitecture.co.uk/areas/wood-green-architects/)
- [Woodford Green](https://www.hampsteadarchitecture.co.uk/areas/woodford-green-architects/)
- [Woodside Park](https://www.hampsteadarchitecture.co.uk/areas/woodside-park-architects/)
- [Woolwich](https://www.hampsteadarchitecture.co.uk/areas/woolwich-architects/)
- [Crouch End (Haringey)](https://www.hampsteadarchitecture.co.uk/areas/crouch-end-architects/)
- [Muswell Hill (Haringey)](https://www.hampsteadarchitecture.co.uk/areas/muswell-hill-architects/)
- [East Finchley (Barnet)](https://www.hampsteadarchitecture.co.uk/areas/east-finchley-architects/)
- [Finchley (Barnet)](https://www.hampsteadarchitecture.co.uk/areas/finchley-architects/)
- [Golders Green (Barnet)](https://www.hampsteadarchitecture.co.uk/areas/golders-green-architects/)
- [Kentish Town (Camden)](https://www.hampsteadarchitecture.co.uk/areas/kentish-town-architects/)
- [Tufnell Park (Islington)](https://www.hampsteadarchitecture.co.uk/areas/tufnell-park-architects/)
- [Stoke Newington (Hackney)](https://www.hampsteadarchitecture.co.uk/areas/stoke-newington-architects/)
- [Ealing (Ealing)](https://www.hampsteadarchitecture.co.uk/areas/ealing-architects/)
- [Hammersmith (Hammersmith & Fulham)](https://www.hampsteadarchitecture.co.uk/areas/hammersmith-architects/)
- [Shepherd’s Bush (Hammersmith & Fulham)](https://www.hampsteadarchitecture.co.uk/areas/shepherds-bush-architects/)
- [Kew (Richmond upon Thames)](https://www.hampsteadarchitecture.co.uk/areas/kew-architects/)
- [Clapham (Lambeth)](https://www.hampsteadarchitecture.co.uk/areas/clapham-architects/)
- [Balham (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/balham-architects/)
- [Wimbledon (Merton)](https://www.hampsteadarchitecture.co.uk/areas/wimbledon-architects/)
- [Putney (Wandsworth)](https://www.hampsteadarchitecture.co.uk/areas/putney-architects/)
- [Barnes (Richmond upon Thames)](https://www.hampsteadarchitecture.co.uk/areas/barnes-architects/)
- [Hackney (Hackney)](https://www.hampsteadarchitecture.co.uk/areas/hackney-architects/)
- [Greenwich (Royal Borough of Greenwich)](https://www.hampsteadarchitecture.co.uk/areas/greenwich-architects/)
- [Blackheath (Royal Borough of Greenwich / Lewisham)](https://www.hampsteadarchitecture.co.uk/areas/blackheath-architects/)
- [Dulwich (Southwark)](https://www.hampsteadarchitecture.co.uk/areas/dulwich-architects/)
- [Herne Hill (Lambeth / Southwark)](https://www.hampsteadarchitecture.co.uk/areas/herne-hill-architects/)

## Planning by borough
- [London Borough of Camden](https://www.hampsteadarchitecture.co.uk/planning/camden/): Residential architecture and planning across the London Borough of Camden — Hampstead, Belsize Park, Primrose Hill, Highgate, Bloomsbury and Camden Town.
- [City of Westminster](https://www.hampsteadarchitecture.co.uk/planning/westminster/): Residential architecture and planning across the City of Westminster — Mayfair, Belgravia, Marylebone, St John’s Wood, Maida Vale and Fitzrovia.
- [Royal Borough of Kensington and Chelsea](https://www.hampsteadarchitecture.co.uk/planning/kensington-and-chelsea/): Residential architecture and planning across RBKC — Kensington, Chelsea, Notting Hill, Holland Park, South Kensington and Knightsbridge, including basement policy.
- [London Borough of Wandsworth](https://www.hampsteadarchitecture.co.uk/planning/wandsworth/): Residential architecture and planning across the London Borough of Wandsworth — Battersea and Wandsworth family homes, extensions and loft conversions.
- [London Borough of Hammersmith & Fulham](https://www.hampsteadarchitecture.co.uk/planning/hammersmith-and-fulham/): Residential architecture and planning across Hammersmith & Fulham — Fulham and Parsons Green family-home extensions, loft conversions and refurbishments.
- [London Borough of Islington](https://www.hampsteadarchitecture.co.uk/planning/islington/): Residential architecture and planning across the London Borough of Islington — Georgian and Victorian terraces, extensions, basements and refurbishments.
- [London Borough of Richmond upon Thames](https://www.hampsteadarchitecture.co.uk/planning/richmond-upon-thames/): Residential architecture and planning across Richmond upon Thames — period homes, riverside properties, extensions and conservation and listed-building projects.
- [London Borough of Hounslow](https://www.hampsteadarchitecture.co.uk/planning/hounslow/): Residential architecture and planning in the London Borough of Hounslow — Chiswick period houses, extensions, loft conversions and Bedford Park conservation projects.
- [London Borough of Barnet](https://www.hampsteadarchitecture.co.uk/planning/barnet/): Residential architecture and planning in the London Borough of Barnet — Hampstead Garden Suburb, including the conservation area and Trust scheme of management.
- [London Borough of Haringey](https://www.hampsteadarchitecture.co.uk/planning/haringey/): Residential architecture and planning across the London Borough of Haringey — Crouch End and Muswell Hill period-home extensions, loft conversions and conservation-area projects.
- [London Borough of Hackney](https://www.hampsteadarchitecture.co.uk/planning/hackney/): Residential architecture and planning across the London Borough of Hackney — Stoke Newington and Hackney terraced-home extensions, loft conversions and conservation-area projects.
- [Royal Borough of Greenwich](https://www.hampsteadarchitecture.co.uk/planning/greenwich/): Residential architecture and planning across the Royal Borough of Greenwich — Greenwich and Blackheath period homes, conservation areas and the Maritime Greenwich World Heritage setting.
- [London Borough of Southwark](https://www.hampsteadarchitecture.co.uk/planning/southwark/): Residential architecture and planning across the London Borough of Southwark — Dulwich period homes, conservation areas and the Dulwich Estate scheme of management.
- [London Borough of Lambeth](https://www.hampsteadarchitecture.co.uk/planning/lambeth/): Residential architecture and planning across the London Borough of Lambeth — Clapham and Herne Hill terraced-home extensions, loft conversions, basements and conservation-area projects.
- [London Borough of Ealing](https://www.hampsteadarchitecture.co.uk/planning/ealing/): Residential architecture and planning in the London Borough of Ealing — extensions, loft conversions and refurbishments with conservation-area and Article 4 checks.
- [London Borough of Merton](https://www.hampsteadarchitecture.co.uk/planning/merton/): Residential architecture and planning in Merton — Wimbledon extensions, lofts, refurbishments and basements under the adopted Local Plan and conservation guidance.