Basement approval rate in Swansea

Swansea approved 68.8% of basement applications, based on 16 decisions analysed.

Last updated: March 2026

68.8%

basement approval rate

Basement decisions

Approved

Refused

86.1%

Swansea overall

Basement applications are refused more often than the Swansea average (86.1%), suggesting the council scrutinises these projects more closely.

How basement compares in Swansea

Basement (16 decided)

68.8%

Swansea all applications (2,873 decided)

86.1%

68.8% get approved — but the odds vary by street. Your Pro Report shows exactly what gets approved and refused near your property.

✓ Your ward's basement approval rate
✓ Nearest comparable basement decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect

Less than one set of revised drawings.

82.8%

81.0%

82.0%

Conservatory (137 decided)

85.4%

Dormer (120 decided)

63.3%

80.2%

77.0%

91.2%

50.0%

Outbuilding (53 decided)

84.9%

81.8%

63.6%