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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 592 real decisions tell us about rear extension outcomes in Coventry.

592 real decisions·January 2020 to present·Updated June 2026
84.1%
Approval Rate
592
Decisions
498
Approved
94
Refused
84.1% approved. But 94 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.

Ward gap in Coventry: Earlsdon approves 100.0% of rear extension applications while St. Michael's sits at 40.0%. That 60.0% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Earlsdon77
100.0%
2Wyken66
100.0%
3Cheylesmore54
80.0%
4Whoberley75
71.4%
5Sherbourne64
66.7%
6Holbrook74
57.1%
7St. Michael's52
40.0%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in Earlsdon but just 40.0% in St. Michael's.
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
Basement20
100.0%
Wraparound Extension67
95.5%
Front Extension54
94.4%
Flat Conversion30
93.3%
Side Extension219
92.7%
Conservatory26
92.3%
Outbuilding110
90.0%
Hip-to-Gable Conversion47
89.4%
Garage / Parking379
87.9%
Extension (General)132
85.6%
Loft Conversion120
85.0%
Rear Extension592
84.1%
Dormer162
83.3%
New Build151
80.8%
Change of Use (Residential)184
71.7%
HMO128
71.1%
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What the data tells us

1
84.1% of rear extension applications in Coventry get approved. That means 94 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 60.0% gap between Earlsdon (100.0%) and St. Michael's (40.0%) means your postcode is one of the strongest indicators of outcome.
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

94 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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More Coventry planning data

Methodology: Based on 592 planning decisions classified as rear extensions in Coventry, January 2020 to present. 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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