Data-backed planning intelligence · 3,780,000+ 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 23,818 real decisions tell us about rear extension outcomes in Ealing.

23,818 real decisions·January 2020 to August 2026·Updated August 2026
84.8%
Approval Rate
23,818
Decisions
20,189
Approved
3,629
Refused
84.8% approved. But 3,629 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.

These are council averages. Your property is specific.

Two houses on the same street can get different outcomes.
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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 Build1,087
96.5%
Basement3,585
91.5%
Extension (General)2,600
90.7%
Garage / Parking13,655
90.4%
Conservatory1,813
88.8%
Loft Conversion12,552
87.7%
Wraparound Extension1,785
87.2%
Hip-to-Gable Conversion4,091
87.1%
Side Extension8,388
85.9%
Dormer2,214
85.5%
Annex265
84.9%
Rear Extension23,818
84.8%
Flat Conversion3,921
84.2%
Outbuilding4,377
84.1%
Change of Use (Residential)3,573
83.2%
Front Extension1,868
81.2%
HMO524
77.7%
See how this applies to your postcode →

What the data tells us

1
84.8% of rear extension applications in Ealing get approved. That means 3,629 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
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

3,629 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 3,780,000+ real decisions

More Ealing planning data

Nearby councils rear extension data

Methodology: Based on 23,818 planning decisions classified as rear extensions in Ealing, January 2020 to August 2026. 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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