Side Extension approval rate in Hart
Hart approved 85.0% of side extension applications, based on 1,566 decisions analysed.
Last updated: March 2026
85.0%
side extension approval rate
1,566
Side Extension decisions
1,331
Approved
235
Refused
85.5%
Hart overall
Side Extension applications are approved at roughly the same rate as the Hart average (85.5%).
How side extension compares in Hart
Side Extension
85.0%
Hart all applications
85.5%
Planning a side extension in Hart?
85.0% 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 Hart 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 Hart
86.6%
79.6%
88.9%
80.0%
83.1%
81.3%
69.7%
76.6%
79.4%
88.3%
71.4%
90.7%
56.7%