Planning decisions in Guernsey
As of 26 Jun 2026, covering the last 5 years.
On the public planning record, Guernsey approved 94% of 1,736 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
- Demolition : 94% approved (371 decided, ~50 days)
- Extension : 98% approved (308 decided, ~45 days)
- Roof / fenestration : 97% approved (248 decided, ~49 days)
- Outbuilding / garden room : 94% approved (229 decided, ~54 days)
- Change of use : 85% approved (162 decided, ~74 days)
- Driveway / dropped kerb : 93% approved (80 decided, ~70 days)
- Conservatory / orangery : 99% approved (67 decided, ~43 days)
- Balcony / roof terrace : 95% approved (64 decided, ~48 days)
- Loft conversion : 97% approved (61 decided, ~50 days)
- Boundary wall / fence / gates : 93% approved (57 decided, ~59 days)
- Porch : 98% approved (46 decided, ~42 days)
- Solar / renewables : 93% approved (43 decided, ~64 days)
Method
Figures are aggregates over the public planning decisions we hold for Guernsey, 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.