Basement approval rate in Harrow
Harrow approved 69.0% of basement applications, based on 274 decisions analysed.
Last updated: September 2026
69.0%
basement approval rate
274
Basement decisions
189
Approved
85
Refused
73.1%
Harrow overall
Basement applications are refused more often than the Harrow average (73.1%), suggesting the council scrutinises these projects more closely.
How basement compares in Harrow
Basement
69.0%
Harrow all applications
73.1%
Planning a basement in Harrow?
69.0% 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 basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Harrow →
✓ 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 Harrow and any other published UK council — see the data services →
Other project types in Harrow
75.4%
74.6%
73.7%
76.4%
77.3%
78.7%
77.0%
80.9%
55.6%
76.0%
63.1%
70.8%
44.3%
76.5%
86.4%