Outbuilding approval rate in Merton
Merton approved 83.2% of outbuilding applications, based on 1,055 decisions analysed.
Last updated: September 2026
83.2%
outbuilding approval rate
1,055
Outbuilding decisions
878
Approved
177
Refused
86.1%
Merton overall
Outbuilding applications are refused more often than the Merton average (86.1%), suggesting the council scrutinises these projects more closely.
How outbuilding compares in Merton
Outbuilding
83.2%
Merton all applications
86.1%
Planning a outbuilding in Merton?
83.2% 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 outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Merton →
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Merton and any other published UK council — see the data services →
Other project types in Merton
81.9%
90.0%
88.7%
88.7%
85.2%
87.8%
86.9%
87.2%
83.1%
91.4%
88.8%
92.8%
79.1%
56.4%
79.2%