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

Rear Extension Approval Rates in Reigate & Banstead

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 2,711 real decisions tell us about rear extension outcomes in Reigate & Banstead.

2,711 real decisions·January 2020 to August 2026·Updated August 2026
90.1%
Approval Rate
2,711
Decisions
2,442
Approved
269
Refused
90.1% approved. But 269 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 Reigate & Banstead.

TypeDecisionsRate
HMO51
98.0%
Basement174
93.1%
Conservatory485
91.3%
Front Extension322
91.3%
Wraparound Extension295
91.2%
Garage / Parking3,713
90.3%
Rear Extension2,711
90.1%
Side Extension1,591
90.1%
Hip-to-Gable Conversion208
89.9%
Outbuilding844
89.5%
New Build1,054
89.1%
Extension (General)1,017
88.0%
Dormer1,103
86.8%
Annex169
86.4%
Loft Conversion770
85.6%
Flat Conversion55
85.5%
Change of Use (Residential)610
85.1%
See how this applies to your postcode →

What the data tells us

1
90.1% of rear extension applications in Reigate & Banstead get approved. That means 269 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

269 rear extension applications in Reigate & Banstead 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 Reigate & Banstead planning data

Nearby councils rear extension data

Methodology: Based on 2,711 planning decisions classified as rear extensions in Reigate & Banstead, 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 Reigate & Banstead Council's public planning portal. Full methodology →
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