Planning decisions in Carmarthenshire
As of 18 Jun 2026, covering the last 5 years.
On the public planning record, Carmarthenshire approved 87% of 599 decided applications in the last 5 years. Here is the approval rate for the most common home-project types. It is useful before you apply and free for local reporters to cite with attribution to MyTrustedTraders.
Approval rate by project type
- Extension : 90% approved (263 decided, ~56 days)
- Change of use : 82% approved (103 decided, ~63 days)
- Rear extension : 92% approved (60 decided, ~56 days)
- Demolition : 84% approved (45 decided, ~62 days)
- Two-storey extension : 87% approved (45 decided, ~49 days)
- Solar / renewables : 79% approved (42 decided, ~47 days)
- Outbuilding / garden room : 80% approved (41 decided, ~57 days)
Method
Figures are aggregates over the public planning decisions we hold for Carmarthenshire, matched to a project type from the application description. Overall approval is decided-weighted across project types, using each type's rate over the last 5 years where we hold enough decisions, otherwise its full record. Only types with at least five decided applications are shown. We publish aggregate counts only, with no application references or applicant names. Full method and limits.