Side Extension approval rate in Derby
Derby approved 94.7% of side extension applications, based on 909 decisions analysed.
Last updated: June 2026
94.7%
side extension approval rate
909
Side Extension decisions
861
Approved
48
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
94.7%
Derby all applications
92.8%
Planning a side extension in Derby?
94.7% 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
96.1%
93.8%
91.7%
94.8%
82.4%
86.9%
89.4%
90.6%
87.4%
88.9%
73.3%
72.2%
93.8%
86.7%