Royal Borough of Greenwich / Lewisham
We design extensions, refurbishments and careful alterations to Blackheath’s Georgian and Victorian homes, from the streets around the heath to the villas of the Cator Estate. Nearly everything here sits within a conservation area, and we plan for that.
Last updated
Practice leadership
Eyal Moran, Director and Lead Architect, is an ARB-registered architect, leading design judgement, planning strategy and technical coordination across client projects.
Verify on the Architects RegisterPlanning at a glance
Blackheath
| Local planning authority | Royal Borough of Greenwich and/or London Borough of Lewisham depending on the exact address |
|---|---|
| Likely approval route | Householder planning application or permitted development, depending on conservation status, listing and property type — confirmed for the exact address before drawings begin |
| Statutory determination time | 8 weeks for most householder applications (13 weeks for major applications) |
| Typical drawing package | £395–£4,950 inc. VAT, fixed fee. Find my package → |
Blackheath has a distinctive, settled character built around the open heath itself. Georgian terraces and crescents face the green, the Cator Estate holds some of London’s finest Victorian villas, and the streets fanning out from Blackheath Village are lined with substantial Victorian and Edwardian family houses. It is an area of generous rooms, mature gardens and strong period detail, and its homes are prized precisely for that coherence. That same coherence is what the planning framework here is designed to protect, which shapes how we approach every commission.
Most of our Blackheath projects are about improving how these period homes work for modern family life: a well-proportioned rear or kitchen extension, a thoughtful loft conversion, or a full refurbishment that upgrades comfort and services while reinstating lost detail. The considerations are consistent — respecting the rhythm of a terrace, keeping additions subordinate to the original house, and handling gardens and boundaries in keeping with the conservation area. On villas and larger houses we also pay close attention to the setting and how a proposal reads from the surrounding streets.
Because Blackheath sits across the Royal Borough of Greenwich and Lewisham and lies almost entirely within one large conservation area, we begin by confirming the correct authority and the designations affecting your home, including whether it is listed. From there we set a realistic planning strategy and coordinate the structural engineering, party wall matters and building control that period alterations require. The result should sit comfortably within Blackheath’s much-loved character while giving you a clear, deliverable route to approval.
Local analysis
Blackheath has a distinctive village and open-heath grain with houses, flats, listed or setting-sensitive buildings and park-edge relationships that make visibility and landscape part of domestic design.
The planning reality is that conservation area, views, open-space setting, trees, boundary treatments, listed context and borough boundary can matter before the size of an extension is considered.
Technical constraints often include old fabric, structural openings, roof works, drainage, party walls, garden levels, tree roots, damp, ventilation and carefully managed construction access.
Delivery should reconcile planning evidence, landscape and heritage constraints, building regulations, structural design, tender information and contractor method before work starts.
Local services
residential architects for Blackheath houses and flats.
planning applications and conservation-area advice.
heritage statements and listed-building support where required.
house extension, refurbishment and interior architecture services.
building regulations drawings and technical design coordination.
tender documentation and construction-stage support.
Project routes
heath-facing house route where boundary, frontage and landscape setting need evidence.
village conservation route where materials, roof form and heritage setting shape design.
family-house extension route with garden, trees, drainage and neighbour checks.
flat or converted-house route where leasehold, fire and acoustic issues matter.
listed or park-edge route where heritage and views need early appraisal.
technical delivery route for older buildings and tight heritage settings.
Local evidence
Blackheath projects should be checked against Lewisham and Royal Greenwich records because the heath, village, park-edge and borough-boundary contexts can all affect the correct planning route.
Blackheath straddles borough edges around the heath; confirm which LPA and which conservation-area appraisal applies before preparing location plans.
Lewisham publishes a Blackheath Conservation Area page and appraisal material explaining the history and special interest of the area.
Royal Greenwich conservation material for Greenwich Park identifies it as one of the conservation areas in western Greenwich and part of a highly sensitive heritage setting.
South-east London heritage settings can involve more than one authority or source record, so the borough boundary should be confirmed before the service route is fixed.
Appraisals, maps, listed-building records, tree constraints and previous decisions should be checked before treating a south-east London extension or refurbishment as routine.
Useful local facts
A Blackheath owner should first establish whether the proposal is heath-facing, village-sensitive, park-edge, listed, ordinary domestic or borough-boundary led.
The property address, property type, photographs, lease or title notes, available drawings, planning history and a short description of the proposed change.
Local process
confirm whether the address falls under Lewisham or Royal Greenwich.
check Blackheath Conservation Area, Greenwich Park or other local heritage settings.
review views, boundaries, open-space relationships and tree constraints before design is fixed.
check listed status and nearby heritage assets where the property is village or park-edge.
confirm drainage, structure, party walls, damp and access before technical design.
separate planning, heritage, building-control, tender and construction information.
Decision checklist
checking the wrong borough before planning strategy is set.
underestimating views, heath setting and boundary treatment.
assuming a garden extension is simple where trees or landscape character are important.
missing listed-building or park-edge setting constraints.
separating elegant interior design from damp, ventilation, structure and services.
pricing work before access and heritage protection are explained.
Thinking about a project in Blackheath?
Send the address and a short description. We will confirm the likely approval route and the drawings your project needs.
Local planning
Blackheath straddles two authorities: the Royal Borough of Greenwich to the north and east and the London Borough of Lewisham to the south and west, so the first practical step is establishing which council governs your street. Almost the entire area falls within the Blackheath conservation area — one of the largest in south-east London — which spans both boroughs and includes landmark groups such as the Grade I listed Paragon crescent and the villas of the Cator Estate. Within it, permitted development rights are commonly restricted and front alterations, roofs and boundary treatments are assessed closely.
Because the conservation area is so extensive, extensions and external changes are judged against the character of the heath’s edge and the coherence of period terraces and villas. Some individual houses are also listed, which adds a requirement for listed building consent on top of planning. We recommend confirming both the correct local planning authority and the listing status for your specific property early, as this determines the application route and the level of justification a scheme will need.
The Blackheath conservation area is one of south-east London’s largest and spans both Greenwich and Lewisham; it covers most homes around the heath and closely controls external alterations.
Landmark listed groups such as the Grade I Paragon and houses on the Cator Estate require particular care, and some individual properties are listed — always confirm status before designing changes.
For the wider local-authority picture — policies, timescales and application routes — see planning in Greenwich.
Services
Architecture & Design
Interior Design
Extensions & Renovations
Planning & Consents
Heritage & Conservation
Technical & Building Regulations
Leasehold & Licence to Alter
Project Delivery & Support
For services without a dedicated Blackheath page, use the London-wide overview to understand the scope, deliverables and next steps.
Architecture & Design
Interior Design
Extensions & Renovations
Planning & Consents
Leasehold & Licence to Alter
Project Delivery & Support
Nearby
Share your address and an outline of what you’d like to do, and we’ll talk through a design that suits Blackheath’s character along with the drawings and conservation approvals it is likely to need.
