Flat Conversion approval rate in Lewisham

Lewisham approved 83.7% of flat conversion applications, based on 2,760 decisions analysed.

Last updated: June 2026

83.7%

flat conversion approval rate

2,760

Flat Conversion decisions

2,311

Approved

449

Refused

82.9%

Lewisham overall

Flat Conversion applications are approved at roughly the same rate as the Lewisham average (82.9%).

How flat conversion compares in Lewisham

Flat Conversion (2,760 decided)

83.7%

Lewisham all applications (25,419 decided)

82.9%

Planning a flat conversion in Lewisham?

83.7% 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 Lewisham

Rear Extension (4,713 decided)

75.5%

Garage / Parking (3,651 decided)

83.1%

Extension (General) (2,724 decided)

84.1%

Loft Conversion (2,647 decided)

79.3%

Dormer (2,062 decided)

81.5%

Change of Use (Residential) (2,046 decided)

78.5%

Basement (1,243 decided)

82.5%

Side Extension (1,181 decided)

76.0%

Hip-to-Gable Conversion (892 decided)

82.0%

Outbuilding (837 decided)

82.8%

HMO (470 decided)

61.3%

Wraparound Extension (449 decided)

84.6%

Conservatory (363 decided)

83.2%

New Build (303 decided)

88.8%

Annex (80 decided)

68.8%

Front Extension (61 decided)

60.7%

← All Lewisham planning statistics

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