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Loft Conversion Approval Rates in Basingstoke & Deane

Loft conversions change your roofline — and that makes them one of the more closely scrutinised application types. Councils scrutinise visibility, overlooking and street character more closely than for ground-level work. Here's what the data shows in Basingstoke & Deane.

133 real decisions·January 2020 to present·Updated March 2026
94.7%
Approval Rate
133
Decisions
126
Approved
7
Refused
94.7% approved. But 7 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 loft conversion approval rates matter

Loft conversions face more scrutiny than rear or side extensions because they change the property's profile from the street. Dormers, mansards and hip-to-gable alterations are particularly sensitive.

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 loft conversions compare to other project types

Not all applications are treated equally. Here's how loft conversions 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
94.7% of loft conversion applications in Basingstoke & Deane get approved. That means 7 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

7 loft conversion 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 loft conversion data

Methodology: Based on 133 planning decisions classified as loft conversions 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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