Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Annex approval rate in Buckinghamshire

Buckinghamshire approved 82.7% of annex applications, based on 255 decisions analysed.

Last updated: June 2026

82.7%
annex approval rate
255
Annex decisions
211
Approved
44
Refused
85.4%
Buckinghamshire overall

Annex applications are refused more often than the Buckinghamshire average (85.4%), suggesting the council scrutinises these projects more closely.

How annex compares in Buckinghamshire

Annex (255 decided)
82.7%
Buckinghamshire all applications (25,814 decided)
85.4%

Planning a annex in Buckinghamshire?

82.7% 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 Buckinghamshire

Rear Extension (8,150 decided)
87.7%
Garage / Parking (6,040 decided)
83.8%
Side Extension (4,582 decided)
88.3%
Dormer (2,775 decided)
84.5%
Front Extension (2,362 decided)
89.1%
Outbuilding (1,932 decided)
82.0%
Loft Conversion (1,742 decided)
84.2%
New Build (1,361 decided)
76.9%
76.1%
Conservatory (997 decided)
90.1%
Extension (General) (959 decided)
83.2%
Wraparound Extension (788 decided)
89.2%
84.8%
Basement (264 decided)
88.3%
Flat Conversion (146 decided)
79.5%
HMO (89 decided)
69.7%
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