Side Extension approval rate in Bolton
Bolton approved 83.1% of side extension applications, based on 248 decisions analysed.
Last updated: September 2026
83.1%
side extension approval rate
248
Side Extension decisions
206
Approved
42
Refused
80.4%
Bolton overall
Side Extension applications are approved more often than the Bolton average (80.4%), suggesting the council is relatively receptive to these projects.
How side extension compares in Bolton
Side Extension
83.1%
Bolton all applications
80.4%
Planning a side extension in Bolton?
83.1% 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 Bolton →
✓ 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 Bolton and any other published UK council — see the data services →
Other project types in Bolton
81.4%
83.2%
85.3%
79.9%
91.2%
79.5%
40.3%
77.5%
71.6%
86.4%
74.2%
79.2%
64.3%
63.6%