Side Extension approval rate in East Hertfordshire
East Hertfordshire approved 73.8% of side extension applications, based on 2,925 decisions analysed.
Last updated: March 2026
73.8%
side extension approval rate
2,925
Side Extension decisions
2,159
Approved
766
Refused
73.2%
East Hertfordshire overall
Side Extension applications are approved at roughly the same rate as the East Hertfordshire average (73.2%).
How side extension compares in East Hertfordshire
Side Extension
73.8%
East Hertfordshire all applications
73.2%
Planning a side extension in East Hertfordshire?
73.8% get approved — but the odds vary by street. Your Pro Report 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
Get East Hertfordshire Pro Report — £79
✓ Nearest comparable side extension decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
Less than one set of revised drawings.
Other project types in East Hertfordshire
78.5%
70.7%
73.3%
74.0%
62.0%
74.7%
82.4%
74.5%
75.3%
78.3%
63.0%
71.9%
69.2%
64.1%
64.7%