Data-backed planning intelligence · 3,700,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Flat Conversion approval rate in Southwark

Southwark approved 91.1% of flat conversion applications, based on 838 decisions analysed.

Last updated: August 2026

91.1%
flat conversion approval rate
838
Flat Conversion decisions
763
Approved
75
Refused
93.5%
Southwark overall

Flat Conversion applications are refused more often than the Southwark average (93.5%), suggesting the council scrutinises these projects more closely.

How flat conversion compares in Southwark

Flat Conversion (838 decided)
91.1%
Southwark all applications (30,483 decided)
93.5%

Planning a flat conversion in Southwark?

91.1% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

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Other project types in Southwark

Garage / Parking (5,497 decided)
96.2%
Rear Extension (3,957 decided)
92.3%
Basement (3,606 decided)
94.4%
Extension (General) (2,946 decided)
94.1%
Dormer (2,809 decided)
93.2%
89.4%
Loft Conversion (2,188 decided)
88.8%
Side Extension (1,838 decided)
94.3%
New Build (1,515 decided)
95.6%
Outbuilding (1,183 decided)
93.0%
Wraparound Extension (427 decided)
94.1%
Conservatory (259 decided)
92.7%
94.0%
HMO (165 decided)
84.8%
Front Extension (118 decided)
93.2%
Annex (116 decided)
94.8%
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