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Outbuilding approval rate in Sefton

Sefton approved 90.3% of outbuilding applications, based on 278 decisions analysed.

Last updated: June 2026

90.3%
outbuilding approval rate
278
Outbuilding decisions
251
Approved
27
Refused
87.5%
Sefton overall

Outbuilding applications are approved more often than the Sefton average (87.5%), suggesting the council is relatively receptive to these projects.

How outbuilding compares in Sefton

Outbuilding (278 decided)
90.3%
Sefton all applications (6,655 decided)
87.5%

Planning a outbuilding in Sefton?

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Other project types in Sefton

Extension (General) (1,794 decided)
93.4%
Garage / Parking (863 decided)
91.3%
71.1%
Rear Extension (460 decided)
89.3%
Dormer (450 decided)
92.2%
Conservatory (369 decided)
97.6%
New Build (321 decided)
84.7%
Side Extension (178 decided)
95.5%
Flat Conversion (80 decided)
75.0%
Loft Conversion (68 decided)
94.1%
HMO (56 decided)
30.4%
100.0%
Annex (40 decided)
95.0%
Basement (39 decided)
87.2%
100.0%
Front Extension (29 decided)
93.1%
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