Outbuilding approval rate in Bromley

Bromley approved 77.0% of outbuilding applications, based on 1,695 decisions analysed.

Last updated: June 2026

77.0%

outbuilding approval rate

1,695

Outbuilding decisions

1,305

Approved

390

Refused

80.9%

Bromley overall

Outbuilding applications are refused more often than the Bromley average (80.9%), suggesting the council scrutinises these projects more closely.

How outbuilding compares in Bromley

Outbuilding (1,695 decided)

77.0%

Bromley all applications (36,213 decided)

80.9%

Planning a outbuilding in Bromley?

77.0% 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 Bromley

Rear Extension (10,938 decided)

82.3%

Garage / Parking (8,141 decided)

79.1%

Side Extension (5,498 decided)

78.1%

Dormer (5,439 decided)

79.0%

Loft Conversion (4,046 decided)

79.6%

New Build (1,744 decided)

73.1%

Change of Use (Residential) (1,733 decided)

74.4%

Hip-to-Gable Conversion (1,648 decided)

80.6%

Front Extension (1,575 decided)

77.5%

Extension (General) (1,454 decided)

78.3%

Conservatory (1,301 decided)

84.2%

Wraparound Extension (1,269 decided)

79.1%

Basement (733 decided)

80.4%

Flat Conversion (256 decided)

74.2%

Annex (224 decided)

62.1%

HMO (173 decided)

57.8%

← All Bromley planning statistics

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