Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Extension (General) approval rate in County Durham

County Durham approved 95.6% of extension (general) applications, based on 1,468 decisions analysed.

Last updated: September 2026

95.6%
extension (general) approval rate
1,468
Extension (General) decisions
1,403
Approved
65
Refused
94.0%
County Durham overall

Extension (General) applications are approved at roughly the same rate as the County Durham average (94.0%).

How extension (general) compares in County Durham

Extension (General) (1,468 decided)
95.6%
County Durham all applications (9,303 decided)
94.0%

Planning a extension (general) in County Durham?

95.6% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

✓ Your ward's extension (general) approval rate
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✓ Refusal triggers specific to your area
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Planning professional? PlanningLens runs refusal alerts and evidence packs for County Durham and any other published UK council — see the data services →

Other project types in County Durham

Garage / Parking (2,057 decided)
95.7%
Rear Extension (1,591 decided)
97.7%
87.1%
Side Extension (916 decided)
97.1%
New Build (637 decided)
89.5%
Outbuilding (594 decided)
95.8%
Dormer (317 decided)
95.9%
Front Extension (273 decided)
97.1%
Conservatory (266 decided)
98.9%
HMO (241 decided)
73.9%
Loft Conversion (169 decided)
94.7%
Wraparound Extension (155 decided)
98.7%
Annex (128 decided)
95.3%
Basement (37 decided)
94.6%
Flat Conversion (23 decided)
78.3%
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