Planning decisions in Guernsey
As of 26 Jun 2026, covering the last 5 years.
On the public planning record, Guernsey approved 95% of 2,177 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 (531 decided, ~50 days)
- Extension : 97% approved (449 decided, ~45 days)
- Roof / fenestration : 97% approved (360 decided, ~49 days)
- Change of use : 85% approved (241 decided, ~83 days)
- Conservatory / orangery : 99% approved (96 decided, ~43 days)
- Balcony / roof terrace : 91% approved (94 decided, ~48 days)
- Loft conversion : 98% approved (85 decided, ~51 days)
- Solar / renewables : 94% approved (65 decided, ~63 days)
- Porch : 97% approved (58 decided, ~44 days)
- Windows & doors : 98% approved (52 decided, ~56 days)
- Two-storey extension : 96% approved (52 decided, ~57 days)
- Advertisement / signage : 96% approved (49 decided, ~66 days)
- Boundary wall / fence / gates : 91% approved (45 decided, ~57 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.