Front Extension approval rate in Hillingdon

Hillingdon approved 65.5% of front extension applications, based on 1,057 decisions analysed.

Last updated: March 2026

65.5%

front extension approval rate

1,057

Front Extension decisions

692

Approved

365

Refused

78.9%

Hillingdon overall

Front Extension applications are refused more often than the Hillingdon average (78.9%), suggesting the council scrutinises these projects more closely.

How front extension compares in Hillingdon

Front Extension (1,057 decided)

65.5%

Hillingdon all applications (30,009 decided)

78.9%

Planning a front extension in Hillingdon?

65.5% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's front extension approval rate
✓ Nearest comparable front extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Get Hillingdon Pro Report — £79

Less than one set of revised drawings.