Side Extension approval rate in Stevenage
Stevenage approved 92.1% of side extension applications, based on 483 decisions analysed.
Last updated: September 2026
92.1%
side extension approval rate
483
Side Extension decisions
445
Approved
38
Refused
94.0%
Stevenage overall
Side Extension applications are approved at roughly the same rate as the Stevenage average (94.0%).
How side extension compares in Stevenage
Side Extension
92.1%
Stevenage all applications
94.0%
Planning a side extension in Stevenage?
92.1% 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 Stevenage →
✓ 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 Stevenage and any other published UK council — see the data services →
Other project types in Stevenage
94.0%
95.8%
91.6%
88.1%
98.4%
90.5%
91.1%
96.3%
92.2%
98.9%
90.9%
73.3%