Side Extension approval rate in Greenwich

Greenwich approved 59.8% of side extension applications, based on 2,066 decisions analysed.

Last updated: August 2026

59.8%

side extension approval rate

2,066

Side Extension decisions

1,236

Approved

830

Refused

78.2%

Greenwich overall

Side Extension applications are refused more often than the Greenwich average (78.2%), suggesting the council scrutinises these projects more closely.

How side extension compares in Greenwich

Side Extension (2,066 decided)

59.8%

Greenwich all applications (23,270 decided)

78.2%

Planning a side extension in Greenwich?

59.8% 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 Greenwich →