Wembley / Wembley Park — covered by Brent Council.
Planning permission drawings delivered by an MCIAT chartered team.
Building regulations drawings delivered by an MCIAT chartered team.
Loft conversion drawings delivered by an MCIAT chartered team.
House extension drawings delivered by an MCIAT chartered team.
Mansard roof extensions delivered by an MCIAT chartered team.
Garage conversion drawings delivered by an MCIAT chartered team.
Basement conversion drawings delivered by an MCIAT chartered team.
Structural calculations delivered by an MCIAT chartered team.
Measured building survey delivered by an MCIAT chartered team.
Party wall services delivered by an MCIAT chartered team.
Rear dormer drawings delivered by an MCIAT chartered team.


HA9 primarily covers Wembley / Wembley Park in Brent.
Decisions for HA9 are made by Brent Council. Standard Permitted Development rules apply for most rear extensions and loft conversions on terraced and semi-detached houses, unless the property is in a conservation area, is listed, or sits under an Article 4 Direction. Article 4 in Brent: Yes.
Building regs from £950. We do not charge hourly. Free site survey across all HA9 addresses.
From first call to planning decision: typically 12–14 weeks. Site survey week 1, design weeks 2–3, validation 1–2 weeks, statutory 8-week determination. Brent Council timelines align with the national norm.
Wembley / Wembley Park in HA9 is characterised by the housing stock of Brent — broadly edwardian villas in queen's park and mapesbury.

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Every HA9 postcode district we draw in, the stock that dominates it and the authority that validates a drawing package there. HA9 fees below are the statutory England rates for 2026, not drawing package estimates.
| Postcode | Area | Dominant stock | What it means for a drawing package |
|---|---|---|---|
| HA9 | Wembley / Wembley Park | 1930s semi-detached, new-build | A drawing package at an HA9 address in Wembley / Wembley Park is determined by Brent Council under its own Local Plan policies for Wembley / Wembley Park. |
| HA9 | Wembley | 1930s semi-detached, new-build | Wembley sits inside HA9; drawing package proposals here are determined by Brent Council. |
| NW2 | Cricklewood / Neasden | Edwardian villas and terraces | Adjoining district to HA9, also inside Brent for drawing package purposes. |
| NW10 | Willesden / Harlesden / Kensal Green | Modern apartments, post-war estates | Adjoining district to HA9, also inside Brent for drawing package purposes. |
| HA0 | Wembley / Sudbury | 1930s semi-detached, new-build | Adjoining district to HA9, also inside Brent for drawing package purposes. |
Roof pitch, wall build-up and plot depth change every few HA9 streets, and each one changes what a drawing package can achieve at that address.
HA9 (Wembley / Wembley Park) conservation designations: there are 22 across Brent Council, Sudbury Court, Queen's Park, Mapesbury among them. Designation costs a HA9 (Wembley / Wembley Park) owner the permitted-development route: a drawing package then needs a £548 householder application over 8 weeks, in place of the £249 prior approval route that takes 6 weeks. Sudbury Court is the HA9 (Wembley / Wembley Park) designation that most often changes a drawing package design.
What Article 4 removes near HA9 (Wembley / Wembley Park): Article 4 for HMO conversions in specific streets around Wembley and Harlesden. Before pricing a drawing package we check whether the HA9 address is inside the mapped area, because Brent Council draws the HA9 (Wembley / Wembley Park) boundary street by street rather than across the whole of HA9 (Wembley / Wembley Park).
What HA9 (Wembley / Wembley Park) is built from: 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. That mix decides the drawing package route in HA9 (Wembley / Wembley Park) more than the postcode does, and it is what a Brent Council case officer reads first. A householder application costs £548 paid to Brent Council direct, with 8 weeks to a decision once validated.
Sources for this HA9 drawing 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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