Side Extension approval rate in Wandsworth

Wandsworth approved 93.6% of side extension applications, based on 3,443 decisions analysed.

Last updated: June 2026

93.6%

side extension approval rate

3,443

Side Extension decisions

3,222

Approved

221

Refused

93.3%

Wandsworth overall

Side Extension applications are approved at roughly the same rate as the Wandsworth average (93.3%).

How side extension compares in Wandsworth

Side Extension (3,443 decided)

93.6%

Wandsworth all applications (27,479 decided)

93.3%

Planning a side extension in Wandsworth?

93.6% 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 Wandsworth

Rear Extension (6,238 decided)

92.9%

Loft Conversion (4,450 decided)

91.3%

Garage / Parking (3,411 decided)

95.5%

Basement (3,218 decided)

94.7%

Change of Use (Residential) (2,001 decided)

92.9%

Dormer (1,954 decided)

88.7%

New Build (1,727 decided)

94.1%

Extension (General) (1,644 decided)

92.6%

Outbuilding (817 decided)

91.7%

Flat Conversion (732 decided)

96.2%

Hip-to-Gable Conversion (297 decided)

83.2%

Wraparound Extension (285 decided)

92.6%

HMO (211 decided)

89.1%

Front Extension (115 decided)

87.0%

Conservatory (108 decided)

96.3%

Annex (60 decided)

90.0%

← All Wandsworth planning statistics

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