Rear Extension approval rate in Derby
Derby approved 95.9% of rear extension applications, based on 1,714 decisions analysed.
Last updated: September 2026
95.9%
rear extension approval rate
1,714
Rear Extension decisions
1,644
Approved
70
Refused
92.8%
Derby overall
Rear Extension applications are approved more often than the Derby average (92.8%), suggesting the council is relatively receptive to these projects.
How rear extension compares in Derby
Rear Extension
95.9%
Derby all applications
92.8%
Planning a rear extension in Derby?
95.9% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Derby →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Derby and any other published UK council — see the data services →
Other project types in Derby
94.4%
93.6%
91.9%
94.2%
82.6%
89.3%
86.9%
90.9%
86.2%
89.3%
73.5%
70.0%
94.4%
88.2%