Basement approval rate in Harrow
Harrow approved 69.7% of basement applications, based on 267 decisions analysed.
Last updated: June 2026
69.7%
basement approval rate
267
Basement decisions
186
Approved
81
Refused
75.9%
Harrow overall
Basement applications are refused more often than the Harrow average (75.9%), suggesting the council scrutinises these projects more closely.
How basement compares in Harrow
Basement
69.7%
Harrow all applications
75.9%
Planning a basement in Harrow?
69.7% 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
Other project types in Harrow
75.3%
74.6%
73.6%
76.3%
77.4%
79.0%
77.1%
81.1%
56.4%
75.5%
63.1%
70.1%
42.1%
86.4%
78.7%