Loft Conversion approval rate in Hertsmere
Hertsmere approved 83.3% of loft conversion applications, based on 96 decisions analysed.
Last updated: September 2026
83.3%
loft conversion approval rate
96
Loft Conversion decisions
80
Approved
16
Refused
87.5%
Hertsmere overall
Loft Conversion applications are refused more often than the Hertsmere average (87.5%), suggesting the council scrutinises these projects more closely.
How loft conversion compares in Hertsmere
Loft Conversion
83.3%
Hertsmere all applications
87.5%
Planning a loft conversion in Hertsmere?
83.3% 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 loft conversion approval rate
✓ Nearest comparable loft conversion decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →
✓ Nearest comparable loft conversion decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Planning professional? PlanningLens runs refusal alerts and evidence packs for Hertsmere and any other published UK council — see the data services →
Other project types in Hertsmere
86.6%
91.8%
91.6%
87.9%
89.7%
88.3%
95.2%
93.2%
95.3%
82.8%
89.7%
100.0%
93.8%
100.0%
100.0%