Annex approval rate in Windsor & Maidenhead
Windsor & Maidenhead approved 64.0% of annex applications, based on 50 decisions analysed.
Last updated: September 2026
64.0%
annex approval rate
50
Annex decisions
32
Approved
18
Refused
81.8%
Windsor & Maidenhead overall
Annex applications are refused more often than the Windsor & Maidenhead average (81.8%), suggesting the council scrutinises these projects more closely.
How annex compares in Windsor & Maidenhead
Annex
64.0%
Windsor & Maidenhead all applications
81.8%
Planning a annex in Windsor & Maidenhead?
64.0% 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 Windsor & Maidenhead →
✓ 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 Windsor & Maidenhead and any other published UK council — see the data services →
Other project types in Windsor & Maidenhead
84.4%
82.2%
83.5%
79.1%
84.7%
78.5%
87.4%
83.4%
87.4%
78.2%
83.6%
76.8%
87.9%
80.0%
80.0%