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Rear Extension Approval Rates in Coventry

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 674 real decisions tell us about rear extension outcomes in Coventry.

674 real decisions·January 2020 to August 2026·Updated August 2026
83.1%
Approval Rate
674
Decisions
560
Approved
114
Refused
83.1% approved. But 114 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 Coventry.

TypeDecisionsRate
Basement21
100.0%
Wraparound Extension81
95.1%
Front Extension63
93.7%
Conservatory30
93.3%
Side Extension263
91.3%
Flat Conversion31
90.3%
Outbuilding122
90.2%
Hip-to-Gable Conversion56
89.3%
Garage / Parking414
87.7%
Extension (General)136
85.3%
Loft Conversion137
84.7%
Rear Extension674
83.1%
Dormer188
82.4%
New Build168
79.8%
HMO142
69.0%
Change of Use (Residential)205
67.8%
See how this applies to your postcode →

What the data tells us

1
83.1% of rear extension applications in Coventry get approved. That means 114 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

114 rear extension applications in Coventry 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 Coventry planning data

Methodology: Based on 674 planning decisions classified as rear extensions in Coventry, 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 Coventry Council's public planning portal. Full methodology →
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