Side Extension approval rate in Canterbury

Canterbury approved 97.3% of side extension applications, based on 1,224 decisions analysed.

Last updated: August 2026

97.3%

side extension approval rate

1,224

Side Extension decisions

1,191

Approved

Refused

95.1%

Canterbury overall

Side Extension applications are approved more often than the Canterbury average (95.1%), suggesting the council is relatively receptive to these projects.

How side extension compares in Canterbury

Side Extension (1,224 decided)

97.3%

Canterbury all applications (11,193 decided)

95.1%

Planning a side extension in Canterbury?

97.3% 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 Canterbury →