Planning decisions in Spelthorne
As of 25 Jun 2026, covering the last 5 years.
On the public planning record, Spelthorne approved 84% of 3,165 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 : 85% approved (833 decided, ~55 days)
- Rear extension : 85% approved (649 decided, ~55 days)
- Loft conversion : 77% approved (222 decided, ~56 days)
- Roof / fenestration : 82% approved (209 decided, ~56 days)
- Demolition : 88% approved (205 decided, ~58 days)
- Side extension : 83% approved (177 decided, ~56 days)
- Two-storey extension : 73% approved (120 decided, ~59 days)
- Listed building / conservation : 98% approved (106 decided, ~42 days)
- Conservatory / orangery : 91% approved (102 decided, ~54 days)
- Porch : 92% approved (102 decided, ~56 days)
- Change of use : 65% approved (95 decided, ~67 days)
- Tree work : 99% approved (87 decided, ~48 days)
- Outbuilding / garden room : 92% approved (79 decided, ~56 days)
- Advertisement / signage : 67% approved (48 decided, ~56 days)
- Boundary wall / fence / gates : 76% approved (46 decided, ~65 days)
- Balcony / roof terrace : 84% approved (45 decided, ~56 days)
- Garage conversion : 85% approved (40 decided, ~54 days)
Method
Figures are aggregates over the public planning decisions we hold for Spelthorne, 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.