Data-backed planning intelligence · 3,790,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Extension (General) approval rate in City of London

City of London approved 99.1% of extension (general) applications, based on 437 decisions analysed.

Last updated: August 2026

99.1%
extension (general) approval rate
437
Extension (General) decisions
433
Approved
4
Refused
98.8%
City of London overall

Extension (General) applications are approved at roughly the same rate as the City of London average (98.8%).

How extension (general) compares in City of London

Extension (General) (437 decided)
99.1%
City of London all applications (10,663 decided)
98.8%

Planning a extension (general) in City of London?

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Other project types in City of London

Basement (997 decided)
99.0%
98.4%
Garage / Parking (395 decided)
98.5%
New Build (207 decided)
98.1%
Loft Conversion (177 decided)
99.4%
Outbuilding (66 decided)
97.0%
Dormer (53 decided)
100.0%
Rear Extension (48 decided)
100.0%
Flat Conversion (20 decided)
100.0%
Annex (11 decided)
100.0%
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