Side Extension approval rate in Swansea
Swansea approved 81.0% of side extension applications, based on 379 decisions analysed.
Last updated: March 2026
81.0%
side extension approval rate
379
Side Extension decisions
307
Approved
72
Refused
86.1%
Swansea overall
Side Extension applications are refused more often than the Swansea average (86.1%), suggesting the council scrutinises these projects more closely.
How side extension compares in Swansea
Side Extension
81.0%
Swansea all applications
86.1%
Planning a side extension in Swansea?
81.0% 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 Swansea 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 Swansea
82.8%
82.0%
85.4%
63.3%
77.0%
91.2%
50.0%
84.9%
68.8%
81.8%
63.6%