Dormer approval rate in Lewisham

Lewisham approved 80.9% of dormer applications, based on 1,945 decisions analysed.

Last updated: March 2026

80.9%

dormer approval rate

1,945

Dormer decisions

1,574

Approved

371

Refused

82.9%

Lewisham overall

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

How dormer compares in Lewisham

Dormer (1,945 decided)

80.9%

Lewisham all applications (24,367 decided)

82.9%

Planning a dormer in Lewisham?

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Other project types in Lewisham

Rear Extension (4,494 decided)

75.4%

Garage / Parking (3,589 decided)

83.2%

Flat Conversion (2,727 decided)

84.0%

Extension (General) (2,648 decided)

84.2%

Loft Conversion (2,555 decided)

79.3%

Change of Use (Residential) (1,997 decided)

79.2%

Basement (1,223 decided)

82.7%

Side Extension (1,146 decided)

75.4%

Hip-to-Gable Conversion (853 decided)

81.7%

Outbuilding (796 decided)

82.3%

HMO (442 decided)

64.5%

Wraparound Extension (420 decided)

84.0%

Conservatory (352 decided)

82.7%

New Build (299 decided)

89.0%

Annex (77 decided)

67.5%

Front Extension (55 decided)

60.0%

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