Rear Extension approval rate in Barnet
Barnet approved 75.9% of rear extension applications, based on 17,196 decisions analysed.
Last updated: March 2026
75.9%
rear extension approval rate
17,196
Rear Extension decisions
13,051
Approved
4,145
Refused
81.8%
Barnet overall
Rear Extension applications are refused more often than the Barnet average (81.8%), suggesting the council scrutinises these projects more closely.
How rear extension compares in Barnet
Rear Extension
75.9%
Barnet all applications
81.8%
Planning a rear extension in Barnet?
75.9% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.
✓ Your ward's rear extension approval rate
✓ Nearest comparable rear extension decisions
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✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in Barnet
82.6%
81.2%
80.9%
81.8%
76.4%
82.3%
78.6%
80.4%
83.5%
81.8%
78.9%
81.8%
82.7%
44.4%
72.2%