NW10 borders the major Old Oak Park Royal regeneration; Brent applies suburban householder control across the residential streets.


The borough-level guide to building regulations drawings in Brent sets out how the same work is handled across the rest of the authority.
Building regulations drawings for a Willesden project turn the design into a construction-ready set — Part A structure, Part B fire, Part L thermal, Part M access — for Brent Council Building Control or an approved inspector. On NW10's victorian and edwardian terraces, inter-war semis and, the recurring details are steel beams over knocked-through ground floors, loft floor build-ups, and insulation upgrades to solid period walls around Willesden, Harlesden, Kensal Green, Park Royal fringe, Willesden Green.
A construction-ready drawing package compliant with every Approved Document — Part A structure, Part B fire, Part L thermal, Part M accessibility — submitted to LABC or your approved inspector with structural calculations coordinated.
Across Willesden, Harlesden, Kensal Green, Park Royal fringe, Willesden Green in NW10, the dominant property is victorian and edwardian terraces, inter-war semis and substantial industrial-to-residential conversions across willesden, harlesden and kensal green. That stock shapes what building regulations drawings looks like here: the right approach for a period terrace differs from a mansion-block flat or a new-build, and Brent Council judges each on design quality and neighbour impact. We survey the specific Willesden property, confirm the planning route — Permitted Development, a Lawful Development Certificate, or full planning — and draw a council-ready set tailored to the NW10 streetscape.
Housing stock in NW10: Victorian and Edwardian terraces, inter-war semis and substantial industrial-to-residential conversions across Willesden, Harlesden and Kensal Green.
Within the district: Willesden, Harlesden, Kensal Green, Park Royal fringe, Willesden Green.
Streets we know in NW10: the Kensal Green terraces, Chamberlayne Road, Doyle Gardens and the Willesden Green streets. Each road has its own building line, boundary treatment and precedent that Brent Council weighs when assessing a building regulations drawings scheme.
Conservation areas: Kensal Green, Roundwood, Harlesden. Inside these, most external work needs full planning and a Heritage Statement.
Getting around NW10: Willesden Junction, Kensal Green and Willesden Green on the Bakerloo, Jubilee and Overground.
Regeneration: Willesden falls within or beside the Old Oak and Park Royal (OPDC) Opportunity Area, one of the UK's largest, which shapes local planning policy and design expectations.
Property values: Brent’s terraced median, £667,500 across 414 sales, edges above its semi-detached median of £650,000 across 364. The two house types are priced close together here. Land Registry price-paid data for 2025 is the source for both.
Borough character: Highly diverse borough; Queen's Park and Mapesbury are heritage-controlled; Wembley is a major regeneration hub.
Plans, sections and elevations at 1:50 with full annotation and material specification.
U-values for walls, roof, floor and glazing; SAP or SBEM where required; compliance statement.
Chartered engineer sign-off on beams, pad foundations, lintels, roof structure.
Escape routes, compartmentation, smoke alarms, fire-rated construction detail.
Soil and vent pipe routes, MVHR coordination, EV charging (Part S).
Full Plans submission to Brent Council Building Control or an approved inspector with inspections coordinated through to completion certificate.
Single planning or building-regs submission.
Planning + building regs + structural.
Listed, conservation or complex sites.

Yes. The Victorian and Edwardian terraces around Chamberlayne Road and Doyle Gardens suit side-return and rear extensions plus loft conversions, much of it Permitted Development outside the conservation areas, confirmed with a Lawful Development Certificate. We confirm the route and draw to Brent's checklist.
OPDC is one of the UK's largest regeneration schemes — tens of thousands of new homes and an Elizabeth line / HS2 interchange — lifting values across NW10. For a house project it mainly improves the backdrop; your scheme is still governed by Permitted Development limits and Brent householder policy, which we apply.
Usually yes — a rear dormer (and hip-to-gable on the semis) within the volume allowance, confirmed by a Lawful Development Certificate, provided you're not in the Kensal Green or Roundwood conservation areas. We check the constraints for your road and draw it for Building Control.
With houses around £650,000-£900,000 and the OPDC regeneration improving the area, a well-designed rear extension or loft adds family space worth comfortably above the build and drawing cost.
Brent Council charges its own statutory application fee (currently £548 for a householder planning application, £610 for a full application). We quote the drawings as one fixed price and the free site survey covers every NW10 address.
For a NW10 project across Willesden, Harlesden, Kensal Green, Park Royal fringe, Willesden Green, expect roughly 3–4 weeks from instruction to submission: week 1 the measured survey, weeks 2–3 the drawings and your revisions, then validation and the statutory determination by Brent Council (8 weeks for a householder application). We carry the Willesden application through every officer query to the decision.
Willesden (NW10) sits primarily in Brent, so applications are decided by Brent Council. Conservation areas within NW10 include Kensal Green, Roundwood, Harlesden, where full planning and a Heritage Statement are required. We confirm the planning route for your exact address before quoting.
Almost always. Any structural work behind building regulations drawings in Willesden — new openings, steel beams, loft floors, foundations — needs Building Regulations approval covering structure (Part A), fire escape (Part B) and insulation (Part L), submitted to Brent Council Building Control or an approved inspector. On NW10's typically terraced and semi-detached stock, a Party Wall notice to adjoining neighbours is normally required before the steelwork. We coordinate both as part of the Complete package.
In value terms, yes. The bigger risk is an unapproved or non-compliant scheme — which is why council-ready drawings and a clean Building Control sign-off matter on NW10 homes.
Householders often approach us after a neighbour used a different council. Our full range is set out for NW2 and NW6.
Pick a slot that suits you. No obligation and no sales pressure, just straight answers on your planning route.
Every NW10 postcode district we draw in, the stock that dominates it and the authority that validates a building regulations package there. NW10 fees below are the statutory England rates for 2026, not building regulations package estimates.
| Postcode | Area | Dominant stock | What it means for a building regulations package |
|---|---|---|---|
| NW10 | Willesden / Harlesden / Kensal Green | Modern apartments, post-war estates | Willesden / Harlesden / Kensal Green is split at NW10. Either Brent Council or Ealing Council can determine a building regulations package here, so the NW10 address is checked against both policies maps first. |
| NW10 | Harlesden | Victorian terraces | Harlesden is inside NW10. Building control is not a council monopoly: an approved inspector can take the same job, discharging the same duty under the Building Regulations, wherever the address sits. |
| NW10 | Kensal Green | Victorian terraces | A NW10 address in Kensal Green can route building control through Brent Council or through an approved inspector. Both discharge the same duty; the fee and the inspection timetable are what differ. |
| NW10 | Willesden | Victorian terraces, Edwardian terraces | Willesden is inside NW10. Building control is not a council monopoly: an approved inspector can take the same job, discharging the same duty under the Building Regulations, wherever the address sits. |
| NW10 | Neasden | 1930s semi-detached, post-war | Neasden sits inside NW10. The Building Regulations check can be bought from Brent Council building control or from a private approved inspector — the owner chooses, and the choice is not tied to the borough boundary. |
| NW10 | Park Royal | Modern apartments, post-war estates | A NW10 address in Park Royal can route building control through Ealing Council or through an approved inspector. Both discharge the same duty; the fee and the inspection timetable are what differ. |
| NW2 | Cricklewood / Neasden | Edwardian villas and terraces | Adjoining district to NW10. The Building Regulations are national; only the choice of inspector is local, and even that is not fixed by Brent. |
| HA0 | Wembley / Sudbury | 1930s semi-detached, new-build | Adjoining district to NW10. The Building Regulations are national; only the choice of inspector is local, and even that is not fixed by Brent. |
| HA9 | Wembley / Wembley Park | 1930s semi-detached, new-build | Adjoining district to NW10. The Building Regulations are national; only the choice of inspector is local, and even that is not fixed by Brent. |
| W3 | Acton | Victorian and Edwardian terraces | Adjoining district to NW10. Building control here can go to Ealing or to an approved inspector, on the same terms as in NW10. |
| W5 | Ealing | Edwardian villas, Victorian terraces | Adjoining district to NW10. Building control here can go to Ealing or to an approved inspector, on the same terms as in NW10. |
| W7 | Hanwell | Edwardian villas, 1930s semi-detached | Adjoining district to NW10. Building control here can go to Ealing or to an approved inspector, on the same terms as in NW10. |
Roof pitch, wall build-up and plot depth change every few NW10 streets, and each one changes what a building regulations package can achieve at that address.
How designation changes a NW10 (Willesden / Harlesden / Kensal Green) building regulations package: Brent Council maintains 22 conservation areas, including Kensal Green, Harlesden, Sudbury Court. Inside any of them a NW10 (Willesden / Harlesden / Kensal Green) building regulations package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Mapesbury sets the tone for NW10 (Willesden / Harlesden / Kensal Green) casework.
Article 4 and your NW10 (Willesden / Harlesden / Kensal Green) building regulations package: Article 4 for HMO conversions in specific streets around Wembley and Harlesden. At a NW10 address that matters twice over, because Brent Council applies the direction unevenly across NW10 (Willesden / Harlesden / Kensal Green) — we read the NW10 (Willesden / Harlesden / Kensal Green) policies map for the exact NW10 address before quoting building regulations drawings.
The building fabric around NW10 (Willesden / Harlesden / Kensal Green): Edwardian villas in Queen's Park and Mapesbury; Victorian terraces in Kilburn and Harlesden; 1930s semi-detached in Wembley; post-war tower blocks in Church End. Highly diverse borough; Queen's Park and Mapesbury are heritage-controlled; Wembley is a major regeneration hub. A building regulations package in NW10 (Willesden / Harlesden / Kensal Green) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Brent Council.
How designation changes a NW10 (Willesden / Harlesden / Kensal Green) building regulations package: Ealing Council maintains 30 conservation areas, including Bedford Park, Acton Green, Hanwell. Inside any of them a NW10 (Willesden / Harlesden / Kensal Green) building regulations package cannot rely on permitted development, and the route becomes a £548 householder application determined in 8 weeks rather than a £249 prior approval in 6 weeks. Pitshanger sets the tone for NW10 (Willesden / Harlesden / Kensal Green) casework.
Article 4 and your NW10 (Willesden / Harlesden / Kensal Green) building regulations package: Article 4 for HMOs in specific streets in Acton, Ealing and Southall. At a NW10 address that matters twice over, because Ealing Council applies the direction unevenly across NW10 (Willesden / Harlesden / Kensal Green) — we read the NW10 (Willesden / Harlesden / Kensal Green) policies map for the exact NW10 address before quoting building regulations drawings.
The building fabric around NW10 (Willesden / Harlesden / Kensal Green): Victorian and Edwardian villas in Ealing central; 1930s semi-detached in Northolt and Hanwell; mansion blocks along main roads; Bedford Park is a listed Arts & Crafts garden suburb. Leafy outer-west London; Bedford Park conservation area has strict heritage controls; rest of borough generally permissive. A building regulations package in NW10 (Willesden / Harlesden / Kensal Green) is scoped against that stock first, because it decides whether the scheme runs as permitted development, a £274 Lawful Development Certificate, or a full £548 application to Ealing Council.
Sources for this NW10 building regulations package page: borough policies maps and conservation-area registers (2025–26), Royal Mail postcode district boundaries, the Town and Country Planning (Fees for Applications) (England) Regulations, the Town and Country Planning (General Permitted Development) (England) Order 2015 as amended, and the Party Wall etc. Act 1996.
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