Annex approval rate in Cambridge
Cambridge approved 86.9% of annex applications, based on 107 decisions analysed.
Last updated: March 2026
86.9%
annex approval rate
107
Annex decisions
93
Approved
14
Refused
90.4%
Cambridge overall
Annex applications are refused more often than the Cambridge average (90.4%), suggesting the council scrutinises these projects more closely.
How annex compares in Cambridge
Annex
86.9%
Cambridge all applications
90.4%
Planning a annex in Cambridge?
86.9% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.
✓ Your ward's annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
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✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Cambridge
93.1%
89.4%
91.7%
93.3%
89.3%
93.1%
87.6%
91.6%
78.7%
93.0%
96.3%
95.8%
60.0%
100.0%