Building Regulations Drawings in Harlesden |

An Article 4 Direction applies across Brent, so check it before assuming Harlesden permitted development survives. Officers see Harlesden as Victorian terraces — design that ignores it struggles. A Harlesden address in Harlesden or Sudbury Court loses part of its permitted development, so we usually take the NW10 scheme to Brent Council as a full application from the outset. We confirm the NW10 designation at survey rather than assuming it.

Every NW10 job starts with checking Article 4 directions street by street. A Harlesden survey establishes the victorian terraces dimensions that decide the scheme — original rear wall, floor levels, and ridge height against Harlesden High Street. The borough policy layer over every NW10 address is set out on Brent planning. The Harlesden survey then carries into architectural drawings in Harlesden if the project runs on to construction.

Expect one to two weeks of London Borough of Brent validation on a Harlesden submission before the statutory period even begins. The first visit to Harlesden is a measured survey — every room, every opening, every level change recorded on site.

Statutory periods: 8 weeks from validation for a householder application, 13 weeks for a major scheme, 6 weeks for prior approval with a 21 days neighbour consultation, and 5 weeks for a full plans building control submission. A party structure notice requires one month notice and two months where excavation is involved.

After validation a Harlesden application is allocated to an officer, who will visit the NW10 address. Every Harlesden submission leaves here as a PDF set at the scales Brent Council requires.

Objections on a Harlesden case usually come from the immediate neighbours, not the wider NW10 area. A Harlesden measured survey captures the roof structure as well as the plan.

On Harlesden terraces the flank wall is usually shared, so the party wall notice should go out well before work starts. Once consent is granted, planning permission follows for the NW10 property.

Harlesden is characterised by victorian terraces, concentrated across NW10 in the Willesden / Harlesden / Kensal Green area. A Harlesden scheme is designed around what the victorian terraces can actually carry. In practice on a Harlesden job, victorian solid brickwork here drives the Part L strategy and the Part C damp detailing. It is why the Harlesden existing set is measured, not traced. The prevailing Harlesden eaves line is the reference Brent Council uses, which is why the proposed elevation is drawn with the neighbours on it.

Lower-ground schemes in Harlesden answer to neighbours and groundwater. A Harlesden survey done once feeds loft conversion drawings for NW10 properties and house extension drawings later.

What the Harlesden drawing pack contains

The Harlesden pack below is what Brent Council and a builder both need.

• construction floor plans for the Harlesden property
• sections at 1:50
• Part A structural notes
• Part L thermal build-ups
• Part B fire and escape strategy

Streets and landmarks we survey around Harlesden

• Queen's Park — roof profiles that set the ridge datum Brent Council measures a Queen's Park dormer against.
• Willesden Green — frontages visible from the highway, so Harlesden materials detail governs the Willesden Green elevation.
• Brondesbury Park — front-to-back level changes that drive the Brondesbury Park section drawings.
• Kensal Rise — front-to-back level changes that drive the Kensal Rise section drawings.
• Harrow Road — terraced rear elevations — the Harrow Road party wall position is drawn first.
• Roundwood Park — terraced rear elevations — the Roundwood Park party wall position is drawn first.
• Kensal Green — gardens deep enough for the 8 weeks householder route on a Kensal Green plot.
• Harlesden High Street — it fixes the local datum a Harlesden roof extension is judged against.
• Old Oak Common — proposals within its setting are drawn with the context elevation included.

Getting to a Harlesden survey

Surveyors travel to NW10 addresses from the studio; the nearest stations are Kensal Green station, Harlesden station, Battersea Power Station, Willesden Junction station. Appointments are booked in Harlesden on weekdays and Saturdays, and the measured survey of a standard victorian terraces takes two to three hours.

Where Harlesden sits

on Ordnance Survey grid reference TQ215835, with the Grand Union Canal shaping drainage and flood-risk questions on lower-lying NW10 plots, inside the Queen's Park and Maida Vale parliamentary constituency. London Borough of Brent validates the NW10 address against exactly that position. Source.

Practical detail for a Harlesden submission: Harlesden is served by Kensal Green station and Harlesden station and Battersea Power Station and Willesden Junction station; LONDON is the post town on Harlesden addresses; dialling code 020. Site plans are drawn to the address as Brent Council holds it.

Harlesden postcode coverage

NW10 (Willesden / Harlesden / Kensal Green), shared with Park Royal, Kensal Green, Willesden, Neasden — all within our Harlesden survey radius.

Streets and stations in Harlesden

Recent Harlesden jobs sit on Queen's Park, Willesden Green, Brondesbury Park, Kensal Rise, Harrow Road, Roundwood Park and Kensal Green. most Harlesden sites are within walking distance of Kensal Green station or Harlesden station or Battersea Power Station.

Areas we cover around Harlesden

The surrounding patch — Swiss Cottage (NW3, NW6), Gospel Oak (NW5), West Hampstead (NW6), Mayfair (W1J, W1K), Belgravia (SW1X, SW1W), Marylebone (W1U, W1G, W1H) — is drawn by the same team, though each street answers to its own designation.

What moves the number on a Harlesden job is the victorian terraces itself — party walls, level changes, and whether Harlesden pulls a heritage statement into scope.

Statutory application fees are set by regulation, not by the council: £548 householder, £610 for a new dwelling, £274 for a lawful development certificate, £249 for prior approval.

None of the London Borough of Brent statutory fee reaches us on a Harlesden job. London planning approval-rate dataset · Brent planning · the London building regulations drawings pillar page · building regulations drawings in Swiss Cottage.

Every Harlesden drawing set is produced and signed off by a chartered member of the Chartered Institute of Architectural Technologists (MCIAT). Where Harlesden or a NW10 party wall complicates a Harlesden scheme, Brent Council sees it early.

Drawings are produced by chartered members of the Chartered Institute of Architectural Technologists (MCIAT), the professional body for technical design and building-regulations competence. First-time approval across our London caseload is 98%. Statutory fees shown are those in force in England in 2026 under the Town and Country Planning (Fees for Applications) Regulations. Confirm your local authority at gov.uk and submission requirements on the Planning Portal. Studio: 71–75 Shelton Street, London WC2H 9JQ.

Give us the NW10 postcode and we will tell you which route applies. This Harlesden page was reviewed in August 2026.