London
Harlesden’s checked point returns the Old Oak and Park Royal Development Corporation, or OPDC, rather than a London borough. Ealing and Brent also appear within 1,400 metres. Nearby conservation records include Harlesden and its extension, Old Oak Lane, Canalside northeast, Grand Union Canal and Kensal Rise. This makes authority verification central to architectural scoping. The locality name cannot determine whether OPDC, Brent or Ealing handles an address, and the returned conservation names remain proximity evidence until checked on official maps.
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The short answer
Not as a blanket statement. Six named records sit within 1,400 metres of the checked point, including Harlesden, Harlesden - extension, Old Oak Lane, Kensal Rise - new and two canal designations, held by Brent and the OPDC. Whether any covers a particular property depends on its exact address, checked against the official conservation map.
Planning at a glance
Harlesden
| Local planning authority | Confirm for the exact property address; the neighbourhood research point is not an address result |
|---|---|
| Likely approval route | Confirm from the exact address, property type, ownership, designation and proposed work before drawings begin |
| Statutory determination time | 8 weeks for most householder applications (13 weeks for major applications) |
| Where most projects start | Planning Route Review — £395 inc. VAT, credited in full against your package if you proceed. Find my package → |
A Harlesden design brief should reserve authority-dependent advice until the property is plotted against OPDC, Brent and Ealing boundaries. If the official conservation map confirms Harlesden, its extension, Old Oak Lane or a canal-related designation, external form, openings, materials and visible services may need a context-specific explanation. If no boundary applies, those nearby names should not be used as controls. The authority result also matters when reviewing precedent: a physically close scheme assessed by Brent may not provide the same procedural or policy signal for an OPDC site.
Harlesden technical coordination should identify which elements cross from construction performance into planning appearance. Roof equipment, façade upgrades, ventilation, drainage and access-related external works can become authority-sensitive. Because OPDC, Brent and Ealing appear within the search, the responsible body should be confirmed before those details are final. The returned Harlesden, Old Oak Lane and Grand Union Canal records sharpen the map review but do not dictate solutions. Structure, fire, acoustics, energy and weathering should then be integrated with the verified external scope and consent path.
Local analysis
Harlesden cannot be routed safely by borough shorthand because the checked point returns the Old Oak and Park Royal Development Corporation. Brent and Ealing also appear in the surrounding authority evidence. Plot the full address against the current official boundaries and record whether OPDC, Brent or Ealing is competent before selecting a portal, fee or precedent.
OPDC’s point result belongs to that coordinate; it neither governs every Harlesden address nor creates shared control with the boroughs. This written route should precede designation research so development-corporation and borough records stay correctly attributed.
Harlesden’s six records divide between two source owners. Canalside, northeast part, Grand Union Canal Conservation Area and Old Oak Lane are returned under OPDC; Harlesden, Harlesden - extension and Kensal Rise - new are Brent records. Ealing appears in the authority search but owns none of these listed designations.
Once responsibility is known, compare the property with the appropriate official polygons and preserve every exact title, especially the extension. A match may support a focused account of outward work; radius proximity alone cannot attach canal, neighbourhood or conservation status to the address.
Until an exact Harlesden address has been plotted against the OPDC, Brent and Ealing boundaries, spending on detailed design is premature. A short feasibility appointment should therefore come first, bought as its own stage. Its job is to settle the responsible authority and test the nearby conservation records, then frame realistic options.
Only after that groundwork should planning drawings be commissioned. Consent work follows as a separate purchase, so an unexpected authority outcome never strands paid technical work. For a householder application, allow around eight weeks for determination once the submission is valid, though authorities can take longer. Technical design and tender packages belong after the decision, not alongside it.
Local services
Harlesden sits awkwardly for standard borough advice, because the checked point answers to the OPDC while Brent and Ealing lie within 1,400 metres, so most projects here begin sensibly with a feasibility study rather than a straight commission for drawings. House extension design and planning application support suit the typical brief once the responsible authority is confirmed.
Where the official map places a property inside one of the nearby designations, such as Harlesden or Old Oak Lane, conservation-area design experience earns its place on the team. Building-regulations drawings and technical design with tender packages then carry an approved scheme through to pricing and construction.
Local evidence
Give every Harlesden drawing issue an ownership label. The site sheet should state OPDC, Brent or Ealing and pair any verified designation with that source owner—for example, Old Oak Lane under OPDC or Harlesden - extension under Brent.
The measured information should then locate the real roof, openings, external envelope, access work and visible services affected. Do not abbreviate a canal or extension record into generic local context, and do not infer construction from it. Clear ownership on titles and notes stops a development-corporation requirement from drifting into a borough route during later coordination.
Local process
A Harlesden project should issue a formal planning-authority note before design freeze. It needs to record OPDC as the point result, explain whether the actual address falls to OPDC, Brent or Ealing, and state the checked outcome for nearby conservation records.
Planning correspondence, drawing titles and submission portals can then follow the same authority. Once consent parameters are understood, building-regulations and tender documents should preserve approved external details. This sequence reduces the substantial risk of cross-authority assumptions contaminating consultant scopes or contractor pricing.
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Local planning
The Harlesden record must not be simplified to “Brent planning.” OPDC is the authority at the research point, with Brent and Ealing nearby, and the conservation dataset spans records associated with that wider boundary context. Harlesden and Harlesden extension are separate results; Old Oak Lane and the canal-related records also have their own extents. An address review needs to establish the competent planning authority first, then the relevant designation if any. Without both checks, an application could use the wrong validation route or claim a conservation context the point search did not prove.
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Send the Harlesden address, photographs and intended work. We will identify the authority, designation and building questions to resolve before a full design or technical package is commissioned.
