A row of yellow-brick terraced cottages with slate porch canopies and small front gardens behind low brick walls on a tree-lined street

NW9 · Kingsbury · Brent

Planning and building regulation drawings in Kingsbury (NW9)

Kingsbury has two housing stories laid on top of each other. The older is Roe Green Village, a First World War garden village built between 1918 and 1920 and designed by Frank Baines to house aircraft workers. It still has the feel of a village green, with cottages arranged around open space. The wider Kingsbury streets add the 1920s and 1930s semi-detached houses of Metro-land. Roads in the district include Roe Green, Bacon Lane, Hay Lane and Stag Lane.

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London Borough of Brent granted 85% of 924 householder applications
Drawings in about 7 days

For a homeowner, which of those you live in decides the route. On an interwar semi, side-return and hip-to-gable loft work frequently qualifies as permitted development, subject to the property and the limits. In Roe Green Village, the scale of the cottages and the shared green setting mean extension massing has to be handled with real restraint. The village is a conservation area, and its Article 4 direction goes beyond what is usual: it restricts changes to street elevations and also the erection of outbuildings in rear gardens, so even a garden room needs thought.

Because the district is so mixed, we never treat NW9 as one. We check first whether the address is inside the Roe Green Village conservation area, then look at the house type, the neighbouring properties and any direction. Outside the village, the council expects extensions to respect the consistent character of the interwar streets, so the drawings need to show how a new roof or rear wing sits with the houses either side.

Planning in Kingsbury: what to know before you apply

Brent controls design strictly within Roe Green Village, where the cottages, greens and layout are protected, and the Article 4 direction covers both street elevations and rear outbuildings. Conservation-area status also takes side extensions, rear extensions of more than one storey and roof enlargements out of permitted development, so most visible work there needs an application; we confirm the position for the specific house. Elsewhere in Kingsbury, the council looks at whether extensions respect the character of the interwar semi-detached streets, and rear extensions and hip-to-gable lofts may fall within permitted development, which depends on the property. Brent's borough-wide Article 4 direction on conversion to a small house in multiple occupation also applies. We check the conservation boundary and directions against your address before drawing.

Applications are decided by London Borough of Brent — its planning pages.

Check your route

Does your Kingsbury project need planning permission?

Route check · Kingsbury (NW9)

ProjectProperty

Listed building?

Conservation area?

Likely permitted development — no planning applicationNeeds checking

A single-storey rear extension up to 4 m deep on a detached house, or 3 m on any other house, is Class A permitted development subject to the height and materials conditions.
An Article 4 direction applies here and may withdraw this freedom — the schedule must be checked before relying on it.
One or more constraints are unknown — we check the council's registers as part of the free appraisal.
Where permitted development applies, a lawful development certificate proves it for lenders and buyers.

Sources: GPDO 2015, Schedule 2, Part 1 · Planning Portal — common projects · Building Regulations 2010 — when approval is needed

This is a first-pass indication from the national rules, not planning advice for your property. Your council's registers, any Article 4 schedule and the exact dimensions decide it — the free appraisal checks all three before we recommend a route.

Confirm it with a free appraisal

Kingsbury (NW9) in numbers

What London Borough of Brent has decided, and what NW9 is built of — the two facts that shape every job here.

Householder planning decisions — London Borough of Brent

Kingsbury (NW9) applications are decided by London Borough of Brent; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1	924
Granted	790
Refused	134
Grantedof 924 decisions · England 90%	85%
Decided within 8 weeksof 690, excluding prior approvals	98%

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Permitted development prior approvals — London Borough of Brent

How the larger-home-extension route has fared with London Borough of Brent, which decides NW9 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q1	335
Prior approval granted	15
Prior approval refused	174
Grantedof 189 determined	8%

Source: Ministry of Housing, Communities and Local Government (PS1 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Planning appeals — London Borough of Brent

Refusals in NW9 can be appealed to the Planning Inspectorate; this is London Borough of Brent's householder appeal record.

Householder appeals determined2021–2026	283
Allowed	118
Allowedof 283 · England 36%	42%

Source: Planning Inspectorate appeals casework. Open Government Licence v3.0 Extracted 2026-09-22.

Conservation areas and Article 4 directions — London Borough of Brent

Register counts for London Borough of Brent. A count describes what the council has published, never a rank against another council.

Conservation areas in the register22 dated, 1968–2024	23
Article 4 directions in the register	39
Areas covered by an Article 4 direction	162

Source: MHCLG Planning Data Platform. Open Government Licence v3.0 Extracted 2026-09-22.

What NW9 is built of

Residential building form across Kingsbury (NW9), from 312 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side	39%
Attached on one side	55%
Detached	6%
Median building footprint	63 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate	2
Buildings classified	312

Source: Ordnance Survey National Geographic Database (derived statistics). Contains OS data © Crown copyright and database right 2026. Contains Royal Mail data © Royal Mail copyright and database right 2026. Extracted 2026-09-22.

Day 0Measured survey of your Kingsbury property — or your existing plans if you have them.
About 7 daysDrawings issued for your approval. Free redraws until you are happy.
SubmissionWe validate against London Borough of Brent’s checklist and submit on your behalf.
Council: 8-week targetHouseholder applications carry an 8-week statutory target. London Borough of Brent decided 98% of 690 recent householder applications inside it.

Source: Ministry of Housing, Communities and Local Government (PS2 district planning application statistics). Open Government Licence v3.0 Extracted 2026-09-22.

Neighbourhoods

Streets and neighbourhoods in NW9

KingsburyFirst World War garden village and interwar Metro-land

Nearby

Nearby postcode districts

St Johns Wood NW8Willesden NW10Mill Hill NW7Golders Green NW11Kilburn NW6Camden Town NW1Kentish Town NW5Cricklewood NW2

FAQ

Kingsbury (NW9) — FAQs

Can I put a garden room or shed in my Roe Green Village garden?+

Not without checking first. The Article 4 direction in Roe Green Village restricts the erection of outbuildings in rear gardens as well as changes facing the street, so where the direction applies, a garden building needs planning permission. We confirm this for your address before any design.

Is a loft conversion on a 1930s Kingsbury semi likely to need planning permission?+

It depends on the house and the work. A hip-to-gable loft on an interwar semi can fall within permitted development, but only outside restricted areas such as the village conservation area. We check before we draw and prepare the application if it is required.

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