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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.

148 real decisions·January 2020 to September 2026·Updated September 2026
94.6%
Approval Rate
148
Decisions
140
Approved
8
Refused
94.6% approved. But 8 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.
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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
Conservatory418
97.8%
Annex170
96.5%
Rear Extension1,925
96.2%
Front Extension450
96.0%
Side Extension1,140
94.8%
Dormer443
94.8%
Loft Conversion148
94.6%
Outbuilding886
94.4%
Extension (General)606
93.7%
Wraparound Extension184
92.4%
Garage / Parking2,241
90.8%
Change of Use (Residential)548
85.0%
New Build1,014
83.4%
HMO27
44.4%
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What the data tells us

1
94.6% of loft conversion applications in Basingstoke & Deane get approved. That means 8 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

8 loft conversion applications in Basingstoke & Deane 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 Basingstoke & Deane planning data

Nearby councils loft conversion data

Methodology: Based on 148 planning decisions classified as loft conversions in Basingstoke & Deane, January 2020 to September 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 Basingstoke & Deane Council's public planning portal. Full methodology →
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