Extension (General) approval rate in Caerphilly

Caerphilly approved 77.5% of extension (general) applications, based on 466 decisions analysed.

Last updated: August 2026

77.5%

extension (general) approval rate

466

Extension (General) decisions

361

Approved

105

Refused

78.2%

Caerphilly overall

Extension (General) applications are approved at roughly the same rate as the Caerphilly average (78.2%).

How extension (general) compares in Caerphilly

Extension (General) (466 decided)

77.5%

Caerphilly all applications (4,981 decided)

78.2%

Planning a extension (general) in Caerphilly?

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Other project types in Caerphilly

Garage / Parking (1,024 decided)

76.8%

Rear Extension (978 decided)

80.8%

Side Extension (597 decided)

75.7%

Change of Use (Residential) (553 decided)

80.1%

Dormer (257 decided)

75.1%

Outbuilding (205 decided)

71.2%

Conservatory (139 decided)

86.3%

Loft Conversion (98 decided)

72.4%

Wraparound Extension (88 decided)

73.9%

Front Extension (82 decided)

52.4%

Annex (72 decided)

70.8%

New Build (58 decided)

74.1%

HMO (40 decided)

92.5%

Basement (32 decided)

71.9%

Flat Conversion (27 decided)

63.0%

Hip-to-Gable Conversion (16 decided)

81.2%

← All Caerphilly planning statistics

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