Data-backed planning intelligence · 2,500,000+ decisions analysed across England, Scotland and Wales

Loft Conversion approval rate in Harrow

Harrow approved 80.7% of loft conversion applications, based on 88 decisions analysed.

Last updated: March 2026

80.7%
loft conversion approval rate
88
Loft Conversion decisions
71
Approved
17
Refused
80.6%
Harrow overall

Loft Conversion applications are approved at roughly the same rate as the Harrow average (80.6%).

How loft conversion compares in Harrow

Loft Conversion (88 decided)
80.7%
Harrow all applications (12,600 decided)
80.6%

Planning a loft conversion in Harrow?

80.7% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's loft conversion approval rate
✓ Nearest comparable loft conversion decisions
✓ Refusal triggers specific to your area
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Less than one set of revised drawings.

Other project types in Harrow

Rear Extension (4,812 decided)
78.2%
Garage / Parking (3,138 decided)
81.8%
Dormer (2,458 decided)
77.3%
Side Extension (2,430 decided)
74.7%
Front Extension (1,029 decided)
77.1%
Outbuilding (974 decided)
79.1%
Flat Conversion (829 decided)
92.2%
Extension (General) (684 decided)
81.4%
83.8%
Conservatory (317 decided)
81.4%
Basement (307 decided)
85.0%
Wraparound Extension (223 decided)
82.5%
HMO (155 decided)
76.8%
New Build (139 decided)
79.1%
Annex (54 decided)
42.6%
75.0%
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