Rear Extension approval rate in Sefton
Sefton approved 89.3% of rear extension applications, based on 460 decisions analysed.
Last updated: June 2026
89.3%
rear extension approval rate
460
Rear Extension decisions
411
Approved
49
Refused
87.5%
Sefton overall
Rear Extension applications are approved at roughly the same rate as the Sefton average (87.5%).
How rear extension compares in Sefton
Rear Extension
89.3%
Sefton all applications
87.5%
Planning a rear extension in Sefton?
89.3% 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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✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Sefton
93.4%
91.3%
92.2%
97.6%
84.7%
90.3%
95.5%
75.0%
94.1%
30.4%
100.0%
95.0%
87.2%
100.0%
93.1%