Data-backed planning intelligence · 3,840,000+ decisions analysed across England, Scotland, Wales and Northern Ireland

Annex approval rate in Swansea

Swansea approved 81.8% of annex applications, based on 22 decisions analysed.

Last updated: October 2026

81.8%
annex approval rate
22
Annex decisions
18
Approved
4
Refused
83.0%
Swansea overall

This rate rests on 22 decisions, a small sample, so treat it with caution.

How annex applications compare in Swansea

Annex (22 decided)
81.8%
Swansea all applications (2,511 decided)
83.0%

Before you apply in Swansea

This page shows the council-wide rate. The free check shows decisions near your property.

✓ Your ward's annex approval rate
✓ Nearest comparable annex decisions
✓ Refusal triggers specific to your area
✓ PDF report for your architect
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Other project types in Swansea

Rear extension (846 decided)
81.0%
Side extension (526 decided)
80.6%
Garage and parking (519 decided)
81.1%
75.9%
Dormer (195 decided)
66.7%
Conservatory (165 decided)
84.2%
Other extension (130 decided)
89.2%
Outbuilding (111 decided)
86.5%
HMO (102 decided)
64.7%
Front extension (97 decided)
76.3%
Loft conversion (94 decided)
60.6%
Basement (26 decided)
76.9%
77.3%
Flat conversion (19 decided)
63.2%
New build (16 decided)
81.2%
66.7%
Check planning approval patterns