Side Extension approval rate in Middlesbrough

Middlesbrough approved 75.2% of side extension applications, based on 109 decisions analysed.

Last updated: March 2026

75.2%

side extension approval rate

109

Side Extension decisions

Approved

Refused

83.1%

Middlesbrough overall

Side Extension applications are refused more often than the Middlesbrough average (83.1%), suggesting the council scrutinises these projects more closely.

How side extension compares in Middlesbrough

Side Extension (109 decided)

75.2%

Middlesbrough all applications (3,412 decided)

83.1%

Planning a side extension in Middlesbrough?

75.2% get approved — but the odds vary by street. Your Pro Report 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

Get Middlesbrough Pro Report — £79

Less than one set of revised drawings.