Side Extension approval rate in Middlesbrough

Middlesbrough approved 89.5% of side extension applications, based on 373 decisions analysed.

Last updated: June 2026

89.5%

side extension approval rate

373

Side Extension decisions

334

Approved

Refused

92.3%

Middlesbrough overall

Side Extension applications are refused more often than the Middlesbrough average (92.3%), suggesting the council scrutinises these projects more closely.

How side extension compares in Middlesbrough

Side Extension (373 decided)

89.5%

Middlesbrough all applications (18,723 decided)

92.3%

Planning a side extension in Middlesbrough?

89.5% 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 Middlesbrough →