Data-backed planning intelligence · 3,700,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

New Build approval rate in Hertsmere

Hertsmere approved 82.5% of new build applications, based on 97 decisions analysed.

Last updated: August 2026

82.5%
new build approval rate
97
New Build decisions
80
Approved
17
Refused
87.8%
Hertsmere overall

New Build applications are refused more often than the Hertsmere average (87.8%), suggesting the council scrutinises these projects more closely.

How new build compares in Hertsmere

New Build (97 decided)
82.5%
Hertsmere all applications (4,144 decided)
87.8%

Planning a new build in Hertsmere?

82.5% 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 new build approval rate
✓ Nearest comparable new build decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for Hertsmere →

Other project types in Hertsmere

Rear Extension (1,283 decided)
86.6%
Garage / Parking (537 decided)
91.4%
Dormer (501 decided)
91.2%
Side Extension (360 decided)
87.2%
Conservatory (165 decided)
87.9%
Front Extension (160 decided)
95.0%
Outbuilding (156 decided)
89.1%
92.9%
Wraparound Extension (116 decided)
94.8%
Loft Conversion (95 decided)
83.2%
Extension (General) (75 decided)
89.3%
90.1%
Basement (32 decided)
93.8%
Flat Conversion (27 decided)
100.0%
HMO (25 decided)
100.0%
Check planning approval patterns, Free