Rear Extension approval rate in Cambridge
Cambridge approved 93.1% of rear extension applications, based on 1,044 decisions analysed.
Last updated: March 2026
93.1%
rear extension approval rate
1,044
Rear Extension decisions
972
Approved
72
Refused
90.4%
Cambridge overall
Rear Extension applications are approved more often than the Cambridge average (90.4%), suggesting the council is relatively receptive to these projects.
How rear extension compares in Cambridge
Rear Extension
93.1%
Cambridge all applications
90.4%
Planning a rear extension in Cambridge?
93.1% get approved — but the odds vary by street. Your Pro Report 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
Get Cambridge Pro Report — £79
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Cambridge
89.4%
91.7%
93.3%
89.3%
93.1%
87.6%
91.6%
78.7%
93.0%
96.3%
86.9%
95.8%
60.0%
100.0%