Annex approval rate in North Somerset

North Somerset approved 86.0% of annex applications, based on 351 decisions analysed.

Last updated: March 2026

86.0%

annex approval rate

351

Annex decisions

302

Approved

Refused

90.2%

North Somerset overall

Annex applications are refused more often than the North Somerset average (90.2%), suggesting the council scrutinises these projects more closely.

How annex compares in North Somerset

Annex (351 decided)

86.0%

North Somerset all applications (19,330 decided)

90.2%

Planning a annex in North Somerset?

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Less than one set of revised drawings.

Other project types in North Somerset

Garage / Parking (3,430 decided)

88.9%

Rear Extension (3,146 decided)

94.8%

Side Extension (2,071 decided)

93.4%

New Build (1,417 decided)

81.0%

Extension (General) (1,388 decided)

91.4%

Change of Use (Residential) (1,172 decided)

79.7%

Dormer (1,069 decided)

90.6%

Conservatory (914 decided)

94.4%

Outbuilding (913 decided)

89.3%

Loft Conversion (606 decided)

90.4%

Front Extension (557 decided)

91.7%

Wraparound Extension (226 decided)

96.0%

Basement (143 decided)

88.8%

Flat Conversion (82 decided)

85.4%

HMO (66 decided)

71.2%

Hip-to-Gable Conversion (56 decided)

89.3%

← All North Somerset planning statistics

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