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Rear Extension Approval Rates in Gloucester

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,054 real decisions tell us about rear extension outcomes in Gloucester.

1,054 real decisions·January 2020 to September 2026·Updated September 2026
87.1%
Approval Rate
1,054
Decisions
918
Approved
136
Refused
87.1% approved. But 136 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 Gloucester.

TypeDecisionsRate
Conservatory215
87.9%
Front Extension97
87.6%
Rear Extension1,054
87.1%
Extension (General)653
85.1%
Change of Use (Residential)312
84.9%
New Build241
83.0%
Wraparound Extension123
82.9%
Side Extension535
82.6%
Garage / Parking681
81.9%
Outbuilding154
81.8%
Basement21
81.0%
HMO96
79.2%
Loft Conversion181
73.5%
Dormer172
71.5%
Annex50
60.0%
See how this applies to your postcode →

What the data tells us

1
87.1% of rear extension applications in Gloucester get approved. That means 136 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

136 rear extension applications in Gloucester 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 Gloucester planning data

Nearby councils rear extension data

Methodology: Based on 1,054 planning decisions classified as rear extensions in Gloucester, 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 Gloucester Council's public planning portal. Full methodology →
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