Rear Extension approval rate in Croydon

Croydon approved 81.3% of rear extension applications, based on 10,637 decisions analysed.

Last updated: June 2026

81.3%

rear extension approval rate

10,637

Rear Extension decisions

8,646

Approved

1,991

Refused

80.9%

Croydon overall

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

How rear extension compares in Croydon

Rear Extension (10,637 decided)

81.3%

Croydon all applications (40,009 decided)

80.9%

Planning a rear extension in Croydon?

81.3% 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 Croydon

Garage / Parking (10,499 decided)

78.0%

New Build (5,263 decided)

78.3%

Side Extension (5,233 decided)

79.9%

Dormer (5,035 decided)

79.3%

Loft Conversion (2,696 decided)

76.2%

Extension (General) (1,818 decided)

81.5%

Change of Use (Residential) (1,814 decided)

60.5%

Basement (1,744 decided)

79.5%

Outbuilding (1,549 decided)

75.0%

Hip-to-Gable Conversion (1,330 decided)

77.1%

Front Extension (1,081 decided)

80.3%

Wraparound Extension (1,030 decided)

77.9%

HMO (741 decided)

50.7%

Flat Conversion (654 decided)

50.5%

Conservatory (640 decided)

84.8%

Annex (213 decided)

71.8%

← All Croydon planning statistics

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