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Free 2026 London Planning Report — Greenford UB6

Box dormer loft conversion clad in hanging tiles with white uPVC windows, next to brick chimney stacks on a terraced house
UB6 · Greenford · Ealing

Planning and building regulation drawings in Greenford (UB6)

UB6 is made up of two interwar suburbs with a lot in common and some local differences. Greenford is dominated by 1920s and 1930s bay-fronted semis and short terraces on wide suburban avenues, many with generous back gardens and their original hipped roofs; Oldfield Lane North, The Fairway, Costons Avenue and Rockware Avenue are among its streets. Closer to the Grand Union Canal and the old Rockware and Lyon works, the plots give way to former industrial land and later flat-roofed infill. Perivale is a planned suburb of matching 1930s semis and short terraces, often with curved bays and rendered gables under hipped tiled roofs, set out on gently curving crescents; its streets include Bilton Road, Horsenden Lane South, Conway Crescent and Calder Avenue.

  • MCIAT chartered technologists
  • London Borough of Ealing granted 88% of 993 householder applications
  • Drawings in about 7 days

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What homeowners build follows the stock. Generous gardens in Greenford, and the deep gardens on the Perivale streets that rise toward Horsenden Hill, suit single-storey extensions and loft dormers. Where an application is needed, the interwar consistency means the council looks hard at whether new work matches the render, bay and roof detailing that gives a street its identity. Gaps between pairs of semis matter in Greenford, so side additions need to respect the established building line.

Both districts touch the north-west part of the Canalside conservation area along the Grand Union, where works visible from the canal corridor face closer scrutiny. Perivale has its own backdrops: the Grade II* Hoover Building on Western Avenue sets the character officers want protected there, and streets that back onto Horsenden Hill sit on rising ground with mature trees, some likely to be protected by Tree Preservation Orders. Land near the canal that once held works can carry contamination and drainage questions, which are better raised before design than during construction.

Planning in Greenford: what to know before you apply

Ealing assesses householder applications against the character of the street, and its conservation areas control dormers, materials and front elevations closely. In UB6 the one to know is Canalside on the north-west edge, where roof enlargements, side extensions and rear extensions of more than one storey are outside permitted development. Elsewhere, interwar semis often start from the standard permitted development rights, but protected trees, the setting of the Hoover Building and slopes near Horsenden Hill can still shape a scheme that needs an application. Ealing has a borough-wide Article 4 direction on conversions of family houses to small shared homes, and some parts of the borough control front-garden hardstanding. We check each against your address first.

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

Check your route

Does your Greenford project need planning permission?

Route check · Greenford (UB6)

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.

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Greenford (UB6) in numbers

What London Borough of Ealing has decided, and what UB6 is built of — the two facts that shape every job here.

Householder planning decisions — London Borough of Ealing

Greenford (UB6) applications are decided by London Borough of Ealing; these are its published householder figures for the last four quarters.

Householder applications decided2025 Q2 to 2026 Q1993
Granted871
Refused122
Grantedof 993 decisions · England 90%88%
Decided within 8 weeksof 421, excluding prior approvals97%

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 Ealing

How the larger-home-extension route has fared with London Borough of Ealing, which decides UB6 notifications.

Larger home extension prior approvals — not required2024 Q2 to 2026 Q1384
Prior approval granted36
Prior approval refused153
Grantedof 189 determined19%

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 Ealing

Refusals in UB6 can be appealed to the Planning Inspectorate; this is London Borough of Ealing's householder appeal record.

Householder appeals determined2021–2026204
Allowed90
Allowedof 204 · England 36%44%

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

Conservation areas and Article 4 directions — London Borough of Ealing

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

Conservation areas in the register28 dated, 1969–200731

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

What UB6 is built of

Residential building form across Greenford (UB6), from 299 classified buildings — the fact that decides party walls, side returns and loft headroom before any policy does.

Attached on more than one side44%
Attached on one side54%
Detached2%
Median building footprint62 m²
Addresses per buildingAbove about 2 means flats and maisonettes dominate1.52
Buildings classified299

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.

  1. Day 0Measured survey of your Greenford property — or your existing plans if you have them.
  2. About 7 daysDrawings issued for your approval. Free redraws until you are happy.
  3. SubmissionWe validate against London Borough of Ealing’s checklist and submit on your behalf.
  4. Council: 8-week targetHouseholder applications carry an 8-week statutory target. London Borough of Ealing decided 97% of 421 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.

FAQ

Greenford (UB6) — FAQs

Can I add a rear dormer to a Perivale semi?+
A rear dormer on a house outside a conservation area can often be built under permitted development, subject to its limits on volume, position and materials. Perivale's streets are consistent, so even where it is allowed we draw dormers that suit the render and roof detailing of the street. Properties within Canalside need a planning application.
Do trees affect a Greenford extension?+
They can. Mature street trees on avenues such as The Fairway may be protected by Tree Preservation Orders, and a root protection zone or a canopy can influence how close an extension or crossover can go. We check tree status early.
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