Rear Extension approval rate in North Hertfordshire
North Hertfordshire approved 93.9% of rear extension applications, based on 310 decisions analysed.
Last updated: June 2026
93.9%
rear extension approval rate
310
Rear Extension decisions
291
Approved
19
Refused
93.4%
North Hertfordshire overall
Rear Extension applications are approved at roughly the same rate as the North Hertfordshire average (93.4%).
How rear extension compares in North Hertfordshire
Rear Extension
93.9%
North Hertfordshire all applications
93.4%
Planning a rear extension in North Hertfordshire?
93.9% get approved — but the odds vary by street. Your Full Planning Analysis shows exactly what gets approved and refused near your property.
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✓ Nearest comparable rear extension decisions
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Free planning check for North Hertfordshire →
✓ Nearest comparable rear extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in North Hertfordshire
89.8%
93.5%
79.8%
92.3%
89.2%
90.7%
93.2%
90.2%
82.4%
92.6%
83.3%
90.0%