Annex approval rate in Hertsmere
Hertsmere approved 100.0% of annex applications, based on 11 decisions analysed.
Last updated: September 2026
100.0%
annex approval rate
11
Annex decisions
11
Approved
0
Refused
87.5%
Hertsmere overall
Annex applications are approved more often than the Hertsmere average (87.5%), suggesting the council is relatively receptive to these projects.
How annex compares in Hertsmere
Annex
100.0%
Hertsmere all applications
87.5%
Planning a annex in Hertsmere?
100.0% 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 annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →
✓ Nearest comparable annex 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%
91.6%
91.4%
87.6%
88.2%
89.3%
95.1%
93.1%
95.0%
82.5%
83.2%
89.6%
93.8%
100.0%
100.0%