Basement approval rate in Hertsmere
Hertsmere approved 93.8% of basement applications, based on 32 decisions analysed.
Last updated: September 2026
93.8%
basement approval rate
32
Basement decisions
30
Approved
2
Refused
87.5%
Hertsmere overall
Basement applications are approved more often than the Hertsmere average (87.5%), suggesting the council is relatively receptive to these projects.
How basement compares in Hertsmere
Basement
93.8%
Hertsmere all applications
87.5%
Planning a basement in Hertsmere?
93.8% 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 basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →
✓ Nearest comparable basement 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%
83.3%
89.7%
100.0%
100.0%
100.0%