Side Extension approval rate in Derby
Derby approved 94.6% of side extension applications, based on 956 decisions analysed.
Last updated: August 2026
94.6%
side extension approval rate
956
Side Extension decisions
904
Approved
52
Refused
92.8%
Derby overall
Side Extension applications are approved at roughly the same rate as the Derby average (92.8%).
How side extension compares in Derby
Side Extension
94.6%
Derby all applications
92.8%
Planning a side extension in Derby?
94.6% 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 Derby →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in Derby
96.0%
93.6%
91.8%
94.4%
82.6%
89.8%
86.5%
91.2%
86.7%
89.1%
71.9%
70.0%
94.4%
86.7%