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Rear Extension Approval Rates in Rushmoor

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 941 real decisions tell us about rear extension outcomes in Rushmoor.

941 real decisions·January 2020 to present·Updated June 2026
97.4%
Approval Rate
941
Decisions
917
Approved
24
Refused
97.4% approved. But 24 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 Rushmoor: Knellwood approves 100.0% of rear extension applications while Manor Park sits at 83.3%. That 16.7% gap means your postcode is one of the strongest indicators of outcome.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Knellwood1010
100.0%
2St John's66
100.0%
3West Heath66
100.0%
4Rowhill88
100.0%
5Fernhill99
100.0%
6Cove And Southwood66
100.0%
7Manor Park65
83.3%
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These are council averages. Your property is specific.

A rear extension has a 100.0% approval rate in Knellwood but just 83.3% in Manor Park.
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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 Rushmoor.

TypeDecisionsRate
Hip-to-Gable Conversion26
100.0%
Wraparound Extension144
98.6%
Front Extension204
98.5%
Conservatory142
97.9%
Rear Extension941
97.4%
Side Extension535
97.0%
Annex32
96.9%
Extension (General)131
96.9%
Outbuilding170
95.9%
Dormer139
95.7%
Loft Conversion72
94.4%
Garage / Parking657
93.5%
New Build191
90.6%
Change of Use (Residential)188
88.8%
HMO29
82.8%
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What the data tells us

1
97.4% of rear extension applications in Rushmoor get approved. That means 24 homeowners since 2020 have been refused. Not terrible odds, but not a foregone conclusion.
2
Your ward matters more than you think. The 16.7% gap between Knellwood (100.0%) and Manor Park (83.3%) 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

24 rear extension applications in Rushmoor 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 Rushmoor planning data

Nearby councils rear extension data

Methodology: Based on 941 planning decisions classified as rear extensions in Rushmoor, 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 Rushmoor Council's public planning portal. Full methodology →
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