Data-backed planning intelligence · 3,200,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Loft Conversion approval rate in Harrow

Harrow approved 70.1% of loft conversion applications, based on 117 decisions analysed.

Last updated: June 2026

70.1%
loft conversion approval rate
117
Loft Conversion decisions
82
Approved
35
Refused
75.9%
Harrow overall

Loft Conversion applications are refused more often than the Harrow average (75.9%), suggesting the council scrutinises these projects more closely.

How loft conversion compares in Harrow

Loft Conversion (117 decided)
70.1%
Harrow all applications (21,804 decided)
75.9%

Planning a loft conversion in Harrow?

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Other project types in Harrow

Rear Extension (10,512 decided)
75.3%
Dormer (4,257 decided)
74.6%
Side Extension (4,224 decided)
73.6%
Garage / Parking (3,654 decided)
76.3%
Front Extension (1,890 decided)
77.4%
Outbuilding (1,769 decided)
79.0%
Extension (General) (908 decided)
77.1%
63.5%
Conservatory (582 decided)
81.1%
HMO (287 decided)
56.4%
Wraparound Extension (286 decided)
75.5%
Flat Conversion (274 decided)
63.1%
Basement (267 decided)
69.7%
Annex (76 decided)
42.1%
86.4%
New Build (61 decided)
78.7%
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