Side extension approval rate in St Helens
St Helens approved – of side extension applications, based on 79 decisions analysed.
Last updated: October 2026
–%
side extension approval rate
79
Side extension decisions
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Approved
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Refused
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St Helens overall
How side extension applications compare in St Helens
Side extension
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St Helens all applications
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Before you apply in St Helens
This page shows the council-wide rate. The free check shows decisions near your property.
✓ Your ward's side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for St Helens →
✓ Nearest comparable side 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
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