Data-backed planning intelligence · 3,780,000+ decisions analysed across England

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 12,317 real decisions tell us about rear extension outcomes in Redbridge.

12,317 real decisions·January 2020 to August 2026·Updated August 2026
77.3%
Approval Rate
12,317
Decisions
9,516
Approved
2,801
Refused
77.3% approved. But 2,801 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
Conservatory612
81.9%
Loft Conversion5,808
81.5%
Dormer5,930
80.8%
Hip-to-Gable Conversion2,388
80.2%
Basement467
79.4%
Rear Extension12,317
77.3%
Garage / Parking3,571
77.0%
Outbuilding1,771
75.8%
New Build966
75.7%
Side Extension3,414
75.5%
Wraparound Extension258
74.4%
Extension (General)771
72.0%
Front Extension785
70.4%
Flat Conversion1,153
67.3%
Change of Use (Residential)2,017
63.0%
Annex153
51.0%
HMO803
50.9%
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 2,801 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

2,801 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 3,780,000+ real decisions

More Redbridge planning data

Nearby councils rear extension data

Methodology: Based on 12,317 planning decisions classified as rear extensions in Redbridge, 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 Redbridge Council's public planning portal. Full methodology →
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