Outbuilding approval rate in Croydon

Croydon approved 75.0% of outbuilding applications, based on 1,549 decisions analysed.

Last updated: June 2026

75.0%

outbuilding approval rate

1,549

Outbuilding decisions

1,161

Approved

388

Refused

80.9%

Croydon overall

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

How outbuilding compares in Croydon

Outbuilding (1,549 decided)

75.0%

Croydon all applications (40,009 decided)

80.9%

Planning a outbuilding in Croydon?

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Other project types in Croydon

Rear Extension (10,637 decided)

81.3%

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%

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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