Side Extension approval rate in Mid Sussex
Mid Sussex approved 95.3% of side extension applications, based on 676 decisions analysed.
Last updated: March 2026
95.3%
side extension approval rate
676
Side Extension decisions
644
Approved
32
Refused
94.0%
Mid Sussex overall
Side Extension applications are approved at roughly the same rate as the Mid Sussex average (94.0%).
How side extension compares in Mid Sussex
Side Extension
95.3%
Mid Sussex all applications
94.0%
Planning a side extension in Mid Sussex?
95.3% 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 Mid Sussex 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 Mid Sussex
92.2%
95.9%
92.3%
92.2%
94.5%
93.3%
96.9%
96.4%
75.8%
95.3%
92.5%
85.5%
92.9%
81.8%