Outbuilding approval rate in Hertsmere
Hertsmere approved 89.7% of outbuilding applications, based on 174 decisions analysed.
Last updated: September 2026
89.7%
outbuilding approval rate
174
Outbuilding decisions
156
Approved
18
Refused
87.5%
Hertsmere overall
Outbuilding applications are approved more often than the Hertsmere average (87.5%), suggesting the council is relatively receptive to these projects.
How outbuilding compares in Hertsmere
Outbuilding
89.7%
Hertsmere all applications
87.5%
Planning a outbuilding in Hertsmere?
89.7% 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 outbuilding approval rate
✓ Nearest comparable outbuilding decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →
✓ Nearest comparable outbuilding 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%
88.3%
95.2%
93.2%
95.3%
82.8%
83.3%
89.7%
100.0%
93.8%
100.0%
100.0%