Data-backed planning intelligence · 3,290,000+ decisions analysed across England

Rear Extension Approval Rates in Ealing

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 23,987 real decisions tell us about rear extension outcomes in Ealing.

23,987 real decisions·January 2020 to present·Updated June 2026
84.0%
Approval Rate
23,987
Decisions
20,150
Approved
3,837
Refused
84.0% approved. But 3,837 refused since 2020. Each refusal cost the homeowner time and money on drawings and application fees. Understanding your local data before you apply is the difference between confidence and a costly gamble.

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Why rear extension approval rates matter

Rear extensions sit in the middle of the pack nationally. They're common enough that councils have clear precedent — but that cuts both ways. If your neighbours have been refused, that precedent works against you too.

Ward gap in Ealing: NOWGRE approves 100.0% of rear extension applications while NORHAN sits at 85.7%. That 14.3% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1NOWGRE55
100.0%
2NORGRE66
100.0%
3WALPLE77
100.0%
4EASACT55
100.0%
5EALCOM55
100.0%
6NORFLD55
100.0%
7NORMAN66
100.0%
8NORHAN76
85.7%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in NOWGRE but just 85.7% in NORHAN.
Check your postcode to see what actually happens near your address.

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How rear extensions compare to other project types

Not all applications are treated equally. Here's how rear extensions stack up against other common projects in Ealing.

TypeDecisionsRate
New Build1,090
95.9%
Basement3,610
90.6%
Extension (General)2,622
89.7%
Garage / Parking13,744
89.4%
Conservatory1,825
88.2%
Loft Conversion12,991
87.1%
Hip-to-Gable Conversion4,295
86.5%
Wraparound Extension1,804
85.8%
Side Extension8,482
84.6%
Dormer2,232
84.3%
Rear Extension23,987
84.0%
Outbuilding4,502
83.1%
Flat Conversion3,980
82.6%
Annex275
82.5%
Change of Use (Residential)3,625
82.4%
Front Extension1,915
79.4%
HMO549
74.7%
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What the data tells us

1
84.0% of rear extension applications in Ealing get approved. That means 3,837 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 14.3% gap between NOWGRE (100.0%) and NORHAN (85.7%) means your postcode is one of the strongest indicators of outcome.
3
Council averages are starting points, not guarantees. The decisions that matter most are the comparable ones near your specific property — because planning officers look at precedent, character and the immediate context of your street.

Before you spend £5,000+ on architects and drawings

3,837 rear extension applications in Ealing have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A free, property-specific report shows you what gets approved — and what gets refused — near your property.

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Free · Property report emailed in minutes · Based on 3,290,000+ real decisions

More Ealing planning data

Nearby councils rear extension data

Methodology: Based on 23,987 planning decisions classified as rear extensions in Ealing, January 2020 to present. Classification uses keyword matching against proposal descriptions (matching generate_site_data.py rules). A single application may appear in multiple categories. Approval rate = approved / (approved + refused). Pending, withdrawn and invalid applications excluded. Data from Ealing Council's public planning portal. Full methodology →
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