Side Extension approval rate in South Downs
South Downs approved 92.1% of side extension applications, based on 530 decisions analysed.
Last updated: March 2026
92.1%
side extension approval rate
530
Side Extension decisions
488
Approved
42
Refused
93.2%
South Downs overall
Side Extension applications are approved at roughly the same rate as the South Downs average (93.2%).
How side extension compares in South Downs
Side Extension
92.1%
South Downs all applications
93.2%
Planning a side extension in South Downs?
92.1% 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
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✓ 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 South Downs
90.6%
93.3%
95.1%
93.6%
87.9%
94.6%
85.0%
88.7%
83.2%
92.5%
87.1%
93.8%
75.0%