Planning decisions in St Helens
As of 23 Jun 2026, covering the last 5 years.
On the public planning record, St Helens approved 96% of 1,456 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 : 96% approved (480 decided, ~56 days)
- Rear extension : 98% approved (326 decided, ~56 days)
- Side extension : 95% approved (159 decided, ~56 days)
- Demolition : 98% approved (123 decided, ~56 days)
- Change of use : 87% approved (78 decided, ~63 days)
- Two-storey extension : 97% approved (75 decided, ~56 days)
- Conservatory / orangery : 97% approved (59 decided, ~56 days)
- Tree work : 89% approved (55 decided, ~56 days)
- Porch : 96% approved (51 decided, ~56 days)
- Loft conversion : 94% approved (50 decided, ~59 days)
Method
Figures are aggregates over the public planning decisions we hold for St Helens, 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.