Annex approval rate in Merton
Merton approved 79.2% of annex applications, based on 106 decisions analysed.
Last updated: August 2026
79.2%
annex approval rate
106
Annex decisions
84
Approved
22
Refused
86.2%
Merton overall
Annex applications are refused more often than the Merton average (86.2%), suggesting the council scrutinises these projects more closely.
How annex compares in Merton
Annex
79.2%
Merton all applications
86.2%
Planning a annex in Merton?
79.2% 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 Merton →
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Merton
81.8%
89.9%
88.5%
88.7%
85.0%
87.8%
86.9%
83.0%
87.2%
83.0%
91.4%
88.7%
92.6%
79.1%
55.6%