Side Extension approval rate in Middlesbrough
Middlesbrough approved 89.6% of side extension applications, based on 374 decisions analysed.
Last updated: August 2026
89.6%
side extension approval rate
374
Side Extension decisions
335
Approved
39
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
89.6%
Middlesbrough all applications
92.3%
Planning a side extension in Middlesbrough?
89.6% 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 →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Middlesbrough
92.7%
91.1%
97.4%
85.3%
83.7%
90.3%
92.5%
83.0%
78.9%
90.4%
84.7%
79.7%
84.0%
94.1%
58.3%