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

Outbuilding approval rate in Cambridge

Cambridge approved 95.5% of outbuilding applications, based on 509 decisions analysed.

Last updated: June 2026

95.5%
outbuilding approval rate
509
Outbuilding decisions
486
Approved
23
Refused
92.9%
Cambridge overall

Outbuilding applications are approved more often than the Cambridge average (92.9%), suggesting the council is relatively receptive to these projects.

How outbuilding compares in Cambridge

Outbuilding (509 decided)
95.5%
Cambridge all applications (8,253 decided)
92.9%

Planning a outbuilding in Cambridge?

95.5% 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 outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
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Other project types in Cambridge

Rear Extension (1,430 decided)
94.9%
Garage / Parking (1,073 decided)
92.5%
Side Extension (815 decided)
94.4%
Dormer (387 decided)
95.3%
Extension (General) (358 decided)
91.9%
Loft Conversion (356 decided)
91.3%
77.0%
Front Extension (312 decided)
93.6%
New Build (308 decided)
84.7%
Wraparound Extension (240 decided)
95.4%
Conservatory (215 decided)
97.7%
Annex (140 decided)
90.0%
Basement (72 decided)
97.2%
100.0%
HMO (44 decided)
72.7%
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