Basement approval rate in Merton
Merton approved 91.4% of basement applications, based on 590 decisions analysed.
Last updated: September 2026
91.4%
basement approval rate
590
Basement decisions
539
Approved
51
Refused
86.1%
Merton overall
Basement applications are approved more often than the Merton average (86.1%), suggesting the council is relatively receptive to these projects.
How basement compares in Merton
Basement
91.4%
Merton all applications
86.1%
Planning a basement in Merton?
91.4% 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 basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Merton →
✓ Nearest comparable basement 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%
83.2%
87.2%
83.1%
88.8%
92.8%
79.1%
56.4%
79.2%