Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Basement approval rate in Bristol

Bristol approved 90.4% of basement applications, based on 626 decisions analysed.

Last updated: June 2026

90.4%
basement approval rate
626
Basement decisions
566
Approved
60
Refused
86.9%
Bristol overall

Basement applications are approved more often than the Bristol average (86.9%), suggesting the council is relatively receptive to these projects.

How basement compares in Bristol

Basement (626 decided)
90.4%
Bristol all applications (25,431 decided)
86.9%

Planning a basement in Bristol?

90.4% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

✓ Your ward's basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Other project types in Bristol

Rear Extension (5,628 decided)
90.8%
Garage / Parking (2,986 decided)
84.9%
Loft Conversion (2,728 decided)
88.4%
Dormer (2,621 decided)
90.6%
Side Extension (2,296 decided)
87.9%
Extension (General) (1,988 decided)
88.4%
79.7%
HMO (845 decided)
75.4%
Outbuilding (836 decided)
88.8%
New Build (727 decided)
72.5%
91.2%
Conservatory (571 decided)
92.3%
Wraparound Extension (430 decided)
94.0%
Annex (303 decided)
76.9%
Flat Conversion (243 decided)
73.3%
Front Extension (193 decided)
81.3%
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