Rear Extension approval rate in Cambridge
Cambridge approved 96.5% of rear extension applications, based on 2,099 decisions analysed.
Last updated: September 2026
96.5%
rear extension approval rate
2,099
Rear Extension decisions
2,025
Approved
74
Refused
92.4%
Cambridge overall
Rear Extension applications are approved more often than the Cambridge average (92.4%), suggesting the council is relatively receptive to these projects.
How rear extension compares in Cambridge
Rear Extension
96.5%
Cambridge all applications
92.4%
Planning a rear extension in Cambridge?
96.5% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Cambridge →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Cambridge and any other published UK council — see the data services →
Other project types in Cambridge
95.0%
96.3%
96.9%
96.9%
94.3%
95.9%
93.8%
89.4%
97.1%
98.6%
93.8%
98.1%
100.0%
85.2%
100.0%