Rear Extension approval rate in County Durham

County Durham approved 97.8% of rear extension applications, based on 1,451 decisions analysed.

Last updated: March 2026

97.8%

rear extension approval rate

1,451

Rear Extension decisions

1,419

Approved

Refused

95.0%

County Durham overall

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

How rear extension compares in County Durham

Rear Extension (1,451 decided)

97.8%

County Durham all applications (14,377 decided)

95.0%

Planning a rear extension in County Durham?

97.8% 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 County Durham Pro Report — £79

Less than one set of revised drawings.