Side Extension approval rate in Stevenage
Stevenage approved 91.5% of side extension applications, based on 436 decisions analysed.
Last updated: March 2026
91.5%
side extension approval rate
436
Side Extension decisions
399
Approved
37
Refused
93.8%
Stevenage overall
Side Extension applications are refused more often than the Stevenage average (93.8%), suggesting the council scrutinises these projects more closely.
How side extension compares in Stevenage
Side Extension
91.5%
Stevenage all applications
93.8%
Planning a side extension in Stevenage?
91.5% 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
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✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Stevenage
93.7%
95.5%
90.9%
98.3%
86.4%
90.5%
91.1%
96.8%
91.2%
98.7%
89.3%
69.2%