Rear Extension approval rate in North Hertfordshire
North Hertfordshire approved 93.5% of rear extension applications, based on 430 decisions analysed.
Last updated: August 2026
93.5%
rear extension approval rate
430
Rear Extension decisions
402
Approved
28
Refused
93.7%
North Hertfordshire overall
Rear Extension applications are approved at roughly the same rate as the North Hertfordshire average (93.7%).
How rear extension compares in North Hertfordshire
Rear Extension
93.5%
North Hertfordshire all applications
93.7%
Planning a rear extension in North Hertfordshire?
93.5% 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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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
90.1%
93.7%
94.1%
83.2%
89.0%
89.2%
93.1%
89.0%
81.4%
91.4%
79.3%
87.5%
92.9%