Extension (General) approval rate in Cambridge

Cambridge approved 91.9% of extension (general) applications, based on 360 decisions analysed.

Last updated: August 2026

91.9%

extension (general) approval rate

360

Extension (General) decisions

331

Approved

Refused

93.0%

Cambridge overall

Extension (General) applications are approved at roughly the same rate as the Cambridge average (93.0%).

How extension (general) compares in Cambridge

Extension (General) (360 decided)

91.9%

Cambridge all applications (8,530 decided)

93.0%

Planning a extension (general) in Cambridge?

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Other project types in Cambridge

Rear Extension (1,481 decided)

95.1%

Garage / Parking (1,111 decided)

92.8%

Side Extension (848 decided)

94.6%

Outbuilding (526 decided)

95.6%

Dormer (395 decided)

95.4%

Loft Conversion (364 decided)

91.5%

Change of Use (Residential) (330 decided)

77.9%

Front Extension (319 decided)

93.7%

New Build (312 decided)

84.9%

Wraparound Extension (256 decided)

95.7%

Conservatory (221 decided)

97.7%

Annex (146 decided)

90.4%

Basement (80 decided)

97.5%

HMO (50 decided)

76.0%

Hip-to-Gable Conversion (47 decided)

100.0%

← All Cambridge planning statistics

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