Basement approval rate in Merton
Merton approved 91.3% of basement applications, based on 573 decisions analysed.
Last updated: March 2026
91.3%
basement approval rate
573
Basement decisions
523
Approved
50
Refused
85.9%
Merton overall
Basement applications are approved more often than the Merton average (85.9%), suggesting the council is relatively receptive to these projects.
How basement compares in Merton
Basement
91.3%
Merton all applications
85.9%
Planning a basement in Merton?
91.3% get approved — but the odds vary by street. Your Pro Report 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
Get Merton Pro Report — £79
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Merton
81.5%
89.9%
88.3%
88.7%
84.9%
87.7%
86.8%
82.8%
86.6%
82.8%
88.5%
93.1%
78.2%
55.7%
79.2%