Planning decisions in Caerphilly
As of 22 Jun 2026, covering the last 5 years.
On the public planning record, Caerphilly approved 78% of 1,273 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 : 78% approved (375 decided, ~52 days)
- Rear extension : 79% approved (189 decided, ~51 days)
- Demolition : 88% approved (144 decided, ~54 days)
- Two-storey extension : 69% approved (109 decided, ~53 days)
- Side extension : 75% approved (97 decided, ~53 days)
- New dwelling : 90% approved (67 decided, ~50 days)
- Loft conversion : 75% approved (61 decided, ~52 days)
- Boundary wall / fence / gates : 73% approved (59 decided, ~54 days)
- Driveway / dropped kerb : 83% approved (48 decided, ~64 days)
- Outbuilding / garden room : 74% approved (42 decided, ~54 days)
- Porch : 71% approved (41 decided, ~52 days)
- Tree work : 78% approved (41 decided, ~50 days)
Method
Figures are aggregates over the public planning decisions we hold for Caerphilly, 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.