Side Extension approval rate in Kingston

Kingston approved 77.3% of side extension applications, based on 3,530 decisions analysed.

Last updated: August 2026

77.3%

side extension approval rate

3,530

Side Extension decisions

2,728

Approved

802

Refused

80.4%

Kingston overall

Side Extension applications are refused more often than the Kingston average (80.4%), suggesting the council scrutinises these projects more closely.

How side extension compares in Kingston

Side Extension (3,530 decided)

77.3%

Kingston all applications (24,776 decided)

80.4%

Planning a side extension in Kingston?

77.3% 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 Kingston

Rear Extension (7,619 decided)

75.7%

Garage / Parking (4,816 decided)

78.9%

Loft Conversion (4,095 decided)

75.6%

Dormer (3,935 decided)

76.4%

New Build (2,826 decided)

77.2%

Hip-to-Gable Conversion (1,850 decided)

77.0%

Change of Use (Residential) (1,430 decided)

76.2%

Outbuilding (1,247 decided)

77.9%

Conservatory (872 decided)

80.6%

Extension (General) (869 decided)

80.7%

Wraparound Extension (783 decided)

80.7%

Front Extension (782 decided)

75.3%

Basement (757 decided)

81.2%

Flat Conversion (410 decided)

64.6%

HMO (168 decided)

72.6%

Annex (146 decided)

76.7%

← All Kingston planning statistics

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