Side Extension approval rate in Calderdale

Calderdale approved 88.4% of side extension applications, based on 1,237 decisions analysed.

Last updated: August 2026

88.4%

side extension approval rate

1,237

Side Extension decisions

1,093

Approved

144

Refused

87.6%

Calderdale overall

Side Extension applications are approved at roughly the same rate as the Calderdale average (87.6%).

How side extension compares in Calderdale

Side Extension (1,237 decided)

88.4%

Calderdale all applications (13,752 decided)

87.6%

Planning a side extension in Calderdale?

88.4% 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 Calderdale

Extension (General) (1,912 decided)

88.9%

Garage / Parking (1,611 decided)

83.0%

Rear Extension (1,366 decided)

88.9%

Change of Use (Residential) (883 decided)

82.8%

Dormer (852 decided)

80.6%

Outbuilding (498 decided)

86.7%

Conservatory (394 decided)

93.1%

Wraparound Extension (184 decided)

87.5%

Annex (172 decided)

86.0%

Loft Conversion (164 decided)

86.0%

New Build (159 decided)

73.6%

Front Extension (146 decided)

84.9%

Basement (117 decided)

92.3%

HMO (45 decided)

75.6%

Hip-to-Gable Conversion (38 decided)

86.8%

Flat Conversion (32 decided)

87.5%

← All Calderdale planning statistics

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