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Flat Conversion approval rate in Blackburn with Darwen

Blackburn with Darwen approved 71.6% of flat conversion applications, based on 102 decisions analysed.

Last updated: June 2026

71.6%
flat conversion approval rate
102
Flat Conversion decisions
73
Approved
29
Refused
89.1%
Blackburn with Darwen overall

Flat Conversion applications are refused more often than the Blackburn with Darwen average (89.1%), suggesting the council scrutinises these projects more closely.

How flat conversion compares in Blackburn with Darwen

Flat Conversion (102 decided)
71.6%
Blackburn with Darwen all applications (12,714 decided)
89.1%

Planning a flat conversion in Blackburn with Darwen?

71.6% get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.

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Other project types in Blackburn with Darwen

Rear Extension (2,200 decided)
90.3%
Extension (General) (1,931 decided)
87.9%
Garage / Parking (1,414 decided)
89.0%
Change of Use (Residential) (1,090 decided)
78.5%
Side Extension (1,073 decided)
88.4%
Dormer (571 decided)
82.3%
New Build (458 decided)
84.3%
Conservatory (314 decided)
92.7%
Outbuilding (287 decided)
88.9%
Wraparound Extension (221 decided)
86.0%
Front Extension (159 decided)
88.1%
Basement (103 decided)
87.4%
Annex (88 decided)
89.8%
Hip-to-Gable Conversion (72 decided)
91.7%
Loft Conversion (64 decided)
84.4%
HMO (29 decided)
55.2%
← All Blackburn with Darwen planning statistics
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