Side Extension approval rate in East Hertfordshire
East Hertfordshire approved 74.2% of side extension applications, based on 3,038 decisions analysed.
Last updated: August 2026
74.2%
side extension approval rate
3,038
Side Extension decisions
2,253
Approved
785
Refused
73.6%
East Hertfordshire overall
Side Extension applications are approved at roughly the same rate as the East Hertfordshire average (73.6%).
How side extension compares in East Hertfordshire
Side Extension
74.2%
East Hertfordshire all applications
73.6%
Planning a side extension in East Hertfordshire?
74.2% 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 side extension approval rate
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Free planning check for East Hertfordshire →
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Other project types in East Hertfordshire
78.8%
71.3%
73.9%
74.5%
62.5%
75.0%
82.8%
75.4%
75.5%
78.3%
63.9%
72.6%
70.9%
63.4%
70.0%