Annex approval rate in Spelthorne
Spelthorne approved 75.0% of annex applications, based on 12 decisions analysed.
Last updated: September 2026
75.0%
annex approval rate
12
Annex decisions
9
Approved
3
Refused
82.5%
Spelthorne overall
Annex applications are refused more often than the Spelthorne average (82.5%), suggesting the council scrutinises these projects more closely.
How annex compares in Spelthorne
Annex
75.0%
Spelthorne all applications
82.5%
Planning a annex in Spelthorne?
75.0% 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
Planning professional? PlanningLens runs refusal alerts and evidence packs for Spelthorne and any other published UK council — see the data services →
Other project types in Spelthorne
85.9%
79.8%
83.7%
75.7%
73.8%
88.7%
90.4%
74.5%
86.7%
87.8%
80.0%
77.8%
42.6%
31.2%