Side Extension approval rate in Arun
Arun approved 96.7% of side extension applications, based on 91 decisions analysed.
Last updated: March 2026
96.7%
side extension approval rate
91
Side Extension decisions
88
Approved
3
Refused
93.7%
Arun overall
Side Extension applications are approved more often than the Arun average (93.7%), suggesting the council is relatively receptive to these projects.
How side extension compares in Arun
Side Extension
96.7%
Arun all applications
93.7%
Planning a side extension in Arun?
96.7% 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
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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 Arun
97.9%
88.8%
92.2%
93.2%
100.0%
91.5%
95.3%
100.0%
88.2%
93.8%
100.0%
91.7%
100.0%