Rear Extension approval rate in Barnet
Barnet approved 75.6% of rear extension applications, based on 18,068 decisions analysed.
Last updated: September 2026
75.6%
rear extension approval rate
18,068
Rear Extension decisions
13,668
Approved
4,400
Refused
79.6%
Barnet overall
Rear Extension applications are refused more often than the Barnet average (79.6%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Barnet
Rear Extension
75.6%
Barnet all applications
79.6%
Planning a rear extension in Barnet?
75.6% 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 rear extension approval rate
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Barnet →
✓ 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 Barnet and any other published UK council — see the data services →
Other project types in Barnet
82.3%
81.0%
80.7%
81.5%
76.1%
81.8%
77.9%
80.1%
83.0%
81.7%
78.7%
81.2%
82.2%
43.8%
72.0%