Rear Extension approval rate in St Helens
St Helens approved – of rear extension applications, based on 107 decisions analysed.
Last updated: September 2026
–%
rear extension approval rate
107
Rear Extension decisions
–
Approved
–
Refused
–
St Helens overall
Rear Extension applications are approved at roughly the same rate as the St Helens average (–).
How rear extension compares in St Helens
Rear Extension
–
St Helens all applications
–
Planning a rear extension in St Helens?
– get approved, but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.
✓ Your ward's rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for St Helens →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for St Helens and any other published UK council — see the data services →
Other project types in St Helens
–