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Rear Extension Approval Rates in Redbridge

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 12,442 real decisions tell us about rear extension outcomes in Redbridge.

12,442 real decisions·January 2020 to September 2026·Updated September 2026
77.3%
Approval Rate
12,442
Decisions
9,617
Approved
2,825
Refused
77.3% approved. But 2,825 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.
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 Redbridge.

TypeDecisionsRate
Conservatory621
81.8%
Loft Conversion5,877
81.5%
Dormer6,004
80.8%
Hip-to-Gable Conversion2,420
80.1%
Basement468
79.3%
Rear Extension12,442
77.3%
Garage / Parking3,600
77.0%
Outbuilding1,799
75.9%
Side Extension3,455
75.6%
New Build968
75.6%
Wraparound Extension261
74.7%
Extension (General)771
72.0%
Front Extension797
70.8%
Flat Conversion1,163
67.2%
Change of Use (Residential)2,035
62.8%
Annex153
51.0%
HMO813
50.4%
See how this applies to your postcode →

What the data tells us

1
77.3% of rear extension applications in Redbridge get approved. That means 2,825 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

2,825 rear extension applications in Redbridge 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 3,840,000+ real decisions

More Redbridge planning data

Nearby councils rear extension data

Methodology: Based on 12,442 planning decisions classified as rear extensions in Redbridge, January 2020 to September 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 Redbridge Council's public planning portal. Full methodology →
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