Dormer approval rate in North Hertfordshire
North Hertfordshire approved 88.2% of dormer applications, based on 153 decisions analysed.
Last updated: September 2026
88.2%
dormer approval rate
153
Dormer decisions
135
Approved
18
Refused
93.5%
North Hertfordshire overall
Dormer applications are refused more often than the North Hertfordshire average (93.5%), suggesting the council scrutinises these projects more closely.
How dormer compares in North Hertfordshire
Dormer
88.2%
North Hertfordshire all applications
93.5%
Planning a dormer in North Hertfordshire?
88.2% 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 dormer approval rate
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for North Hertfordshire →
✓ Nearest comparable dormer decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for North Hertfordshire and any other published UK council — see the data services →
Other project types in North Hertfordshire
94.0%
90.5%
94.0%
94.7%
83.3%
90.0%
93.8%
88.9%
83.0%
92.1%
80.0%
88.0%
92.9%