Annex approval rate in Spelthorne
Spelthorne approved 72.7% of annex applications, based on 11 decisions analysed.
Last updated: June 2026
72.7%
annex approval rate
11
Annex decisions
8
Approved
3
Refused
86.2%
Spelthorne overall
Annex applications are refused more often than the Spelthorne average (86.2%), suggesting the council scrutinises these projects more closely.
How annex compares in Spelthorne
Annex
72.7%
Spelthorne all applications
86.2%
Planning a annex in Spelthorne?
72.7% 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 Spelthorne →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Spelthorne
85.6%
79.6%
85.0%
75.5%
73.3%
88.0%
89.6%
73.2%
87.5%
88.9%
78.4%
43.9%
74.4%
31.2%