Rear Extension approval rate in Darlington

Darlington approved 95.3% of rear extension applications, based on 443 decisions analysed.

Last updated: March 2026

95.3%

rear extension approval rate

443

Rear Extension decisions

422

Approved

Refused

91.6%

Darlington overall

Rear Extension applications are approved more often than the Darlington average (91.6%), suggesting the council is relatively receptive to these projects.

How rear extension compares in Darlington

Rear Extension (443 decided)

95.3%

Darlington all applications (2,301 decided)

91.6%

Planning a rear extension in Darlington?

95.3% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

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

Get Darlington Pro Report — £79

Less than one set of revised drawings.