Side Extension approval rate in North Northamptonshire
North Northamptonshire approved 90.8% of side extension applications, based on 412 decisions analysed.
Last updated: September 2026
90.8%
side extension approval rate
412
Side Extension decisions
374
Approved
38
Refused
88.8%
North Northamptonshire overall
Side Extension applications are approved at roughly the same rate as the North Northamptonshire average (88.8%).
How side extension compares in North Northamptonshire
Side Extension
90.8%
North Northamptonshire all applications
88.8%
Planning a side extension in North Northamptonshire?
90.8% 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 North Northamptonshire →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for North Northamptonshire and any other published UK council — see the data services →
Other project types in North Northamptonshire
93.1%
90.5%
94.2%
91.4%
96.7%
94.7%
85.6%
86.1%
87.9%
89.5%
83.3%
91.3%
90.0%