Side Extension approval rate in Canterbury

Canterbury approved 97.4% of side extension applications, based on 1,152 decisions analysed.

Last updated: May 2026

97.4%

side extension approval rate

1,152

Side Extension decisions

1,122

Approved

Refused

95.0%

Canterbury overall

Side Extension applications are approved more often than the Canterbury average (95.0%), suggesting the council is relatively receptive to these projects.

How side extension compares in Canterbury

Side Extension (1,152 decided)

97.4%

Canterbury all applications (10,484 decided)

95.0%

Planning a side extension in Canterbury?

97.4% 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 →