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Rear Extension Approval Rates in Basingstoke & Deane

Rear extensions are the bread and butter of UK planning — and one of the most common reasons homeowners face a refusal. Here's what 1,799 real decisions tell us about rear extension outcomes in Basingstoke & Deane.

1,799 real decisions·January 2020 to present·Updated March 2026
96.2%
Approval Rate
1,799
Decisions
1,730
Approved
69
Refused
96.2% approved. But 69 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.

Rear Extension approval rate by ward

#WardDecisionsApprovedRate
1Basing And Upton Grey66
100.0%
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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 Basingstoke & Deane.

TypeDecisionsRate
Conservatory387
97.7%
Annex152
96.7%
Rear Extension1,799
96.2%
Front Extension420
96.0%
Dormer417
95.0%
Loft Conversion133
94.7%
Side Extension1,059
94.7%
Outbuilding798
94.0%
Extension (General)557
93.2%
Wraparound Extension168
91.7%
Garage / Parking2,073
90.5%
Change of Use (Residential)508
84.3%
New Build965
83.4%
HMO26
42.3%
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What the data tells us

1
96.2% of rear extension applications in Basingstoke & Deane get approved. That means 69 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

69 rear extension applications in Basingstoke & Deane have been refused since 2020. Many of those homeowners had already paid for drawings and application fees. A £79 report shows you what gets approved — and what gets refused — near your property.

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More Basingstoke & Deane planning data

Nearby councils rear extension data

Methodology: Based on 1,799 planning decisions classified as rear extensions in Basingstoke & Deane, 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 Basingstoke & Deane Council's public planning portal. Full methodology →
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