Side Extension approval rate in Halton
Halton approved 97.2% of side extension applications, based on 393 decisions analysed.
Last updated: September 2026
97.2%
side extension approval rate
393
Side Extension decisions
382
Approved
11
Refused
96.2%
Halton overall
Side Extension applications are approved at roughly the same rate as the Halton average (96.2%).
How side extension compares in Halton
Side Extension
97.2%
Halton all applications
96.2%
Planning a side extension in Halton?
97.2% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Halton →
✓ 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 Halton and any other published UK council — see the data services →
Other project types in Halton
98.2%
96.9%
96.1%
98.9%
90.0%
97.0%
95.3%
100.0%
100.0%
94.1%
70.0%