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

Annex approval rate in Cheltenham

Cheltenham approved 91.6% of annex applications, based on 131 decisions analysed.

Last updated: June 2026

91.6%
annex approval rate
131
Annex decisions
120
Approved
11
Refused
96.0%
Cheltenham overall

Annex applications are refused more often than the Cheltenham average (96.0%), suggesting the council scrutinises these projects more closely.

How annex compares in Cheltenham

Annex (131 decided)
91.6%
Cheltenham all applications (14,041 decided)
96.0%

Planning a annex in Cheltenham?

91.6% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Cheltenham →

Other project types in Cheltenham

Rear Extension (2,478 decided)
98.0%
Garage / Parking (1,866 decided)
95.9%
Side Extension (1,350 decided)
96.8%
Extension (General) (1,251 decided)
96.2%
Dormer (573 decided)
96.2%
Outbuilding (570 decided)
96.0%
94.5%
Conservatory (489 decided)
99.2%
Loft Conversion (412 decided)
92.7%
New Build (372 decided)
87.4%
Basement (340 decided)
96.8%
Wraparound Extension (282 decided)
97.5%
Front Extension (229 decided)
96.5%
96.0%
Flat Conversion (28 decided)
89.3%
HMO (26 decided)
84.6%
Check planning approval patterns, Free