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Loft Conversion Approval Rates in Bath & NE Somerset

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 Bath & NE Somerset.

1,100 real decisions·January 2020 to present·Updated May 2026
91.5%
Approval Rate
1,100
Decisions
1,006
Approved
94
Refused
91.5% 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 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 Bath & NE Somerset.

TypeDecisionsRate
Wraparound Extension371
96.0%
Conservatory1,211
95.8%
Rear Extension5,021
95.1%
Side Extension2,772
94.7%
Front Extension379
94.5%
Basement943
92.8%
Dormer1,881
92.1%
Extension (General)2,537
91.8%
HMO642
91.7%
Loft Conversion1,100
91.5%
Outbuilding1,793
91.2%
Garage / Parking4,823
89.4%
Change of Use (Residential)2,207
87.9%
Annex367
87.5%
Hip-to-Gable Conversion54
87.0%
Flat Conversion129
86.8%
New Build3,033
83.1%
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What the data tells us

1
91.5% of loft conversion applications in Bath & NE Somerset get approved. That means 94 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

94 loft conversion applications in Bath & NE Somerset 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 Bath & NE Somerset planning data

Methodology: Based on 1,100 planning decisions classified as loft conversions in Bath & NE Somerset, 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 Bath & NE Somerset Council's public planning portal. Full methodology →
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