Data-backed planning intelligence · 2,500,000+ decisions analysed across England, Scotland and Wales

Annex approval rate in Buckinghamshire

Buckinghamshire approved 82.6% of annex applications, based on 253 decisions analysed.

Last updated: March 2026

82.6%
annex approval rate
253
Annex decisions
209
Approved
44
Refused
85.3%
Buckinghamshire overall

Annex applications are refused more often than the Buckinghamshire average (85.3%), suggesting the council scrutinises these projects more closely.

How annex compares in Buckinghamshire

Annex (253 decided)
82.6%
Buckinghamshire all applications (25,538 decided)
85.3%

Planning a annex in Buckinghamshire?

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Less than one set of revised drawings.

Other project types in Buckinghamshire

Rear Extension (8,065 decided)
87.6%
Garage / Parking (5,995 decided)
83.7%
Side Extension (4,548 decided)
88.2%
Dormer (2,756 decided)
84.4%
Front Extension (2,338 decided)
89.0%
Outbuilding (1,920 decided)
82.0%
Loft Conversion (1,728 decided)
84.0%
New Build (1,352 decided)
76.8%
76.1%
Conservatory (984 decided)
89.9%
Extension (General) (947 decided)
83.0%
Wraparound Extension (784 decided)
89.2%
84.7%
Basement (264 decided)
88.3%
Flat Conversion (146 decided)
79.5%
HMO (88 decided)
69.3%
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