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Rear Extension approval rate in Bromley

Bromley approved 82.2% of rear extension applications, based on 10,946 decisions analysed.

Last updated: March 2026

82.2%
rear extension approval rate
10,946
Rear Extension decisions
9,001
Approved
1,945
Refused
80.9%
Bromley overall

Rear Extension applications are approved at roughly the same rate as the Bromley average (80.9%).

How rear extension compares in Bromley

Rear Extension (10,946 decided)
82.2%
Bromley all applications (36,212 decided)
80.9%

Planning a rear extension in Bromley?

82.2% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
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Less than one set of revised drawings.

Other project types in Bromley

Garage / Parking (8,143 decided)
79.1%
Side Extension (5,503 decided)
78.1%
Dormer (5,444 decided)
79.0%
Loft Conversion (4,048 decided)
79.6%
New Build (1,744 decided)
73.0%
74.4%
Outbuilding (1,698 decided)
77.0%
Hip-to-Gable Conversion (1,648 decided)
80.6%
Front Extension (1,575 decided)
77.5%
Extension (General) (1,451 decided)
78.4%
Conservatory (1,305 decided)
84.3%
Wraparound Extension (1,270 decided)
79.1%
Basement (734 decided)
80.4%
Flat Conversion (255 decided)
74.1%
Annex (224 decided)
62.1%
HMO (174 decided)
58.0%
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