Annex approval rate in Dorset

Dorset approved 88.7% of annex applications, based on 435 decisions analysed.

Last updated: August 2026

88.7%

annex approval rate

435

Annex decisions

386

Approved

Refused

92.8%

Dorset overall

Annex applications are refused more often than the Dorset average (92.8%), suggesting the council scrutinises these projects more closely.

How annex compares in Dorset

Annex (435 decided)

88.7%

Dorset all applications (25,048 decided)

92.8%

Planning a annex in Dorset?

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Other project types in Dorset

Garage / Parking (3,227 decided)

91.3%

Rear Extension (2,047 decided)

93.6%

Extension (General) (1,949 decided)

94.3%

Outbuilding (1,198 decided)

91.9%

Change of Use (Residential) (1,123 decided)

84.0%

Side Extension (1,119 decided)

94.1%

Dormer (841 decided)

92.4%

Conservatory (702 decided)

97.0%

New Build (511 decided)

83.2%

Loft Conversion (305 decided)

94.1%

Front Extension (287 decided)

95.8%

Wraparound Extension (142 decided)

95.8%

Basement (58 decided)

87.9%

Flat Conversion (32 decided)

90.6%

Hip-to-Gable Conversion (23 decided)

91.3%

HMO (17 decided)

64.7%

← All Dorset planning statistics

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