Planning decisions in Hounslow
As of 23 Jun 2026, covering the last 5 years.
On the public planning record, Hounslow approved 82% of 2,031 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 : 81% approved (611 decided, ~55 days)
- Rear extension : 81% approved (378 decided, ~55 days)
- Listed building / conservation : 98% approved (199 decided, ~33 days)
- Tree work : 95% approved (185 decided, ~29 days)
- Demolition : 69% approved (105 decided, ~66 days)
- Side extension : 78% approved (102 decided, ~59 days)
- Outbuilding / garden room : 76% approved (62 decided, ~56 days)
- Two-storey extension : 72% approved (47 decided, ~61 days)
- Porch : 68% approved (47 decided, ~59 days)
- Loft conversion : 76% approved (41 decided, ~71 days)
- Change of use : 37% approved (38 decided, ~79 days)
- Roof / fenestration : 91% approved (33 decided, ~69 days)
- Balcony / roof terrace : 69% approved (32 decided, ~57 days)
- Advertisement / signage : 69% approved (26 decided, ~56 days)
- Boundary wall / fence / gates : 75% approved (24 decided, ~68 days)
- Solar / renewables : 100% approved (19 decided, ~63 days) †
- Shopfront / commercial : 78% approved (18 decided, ~62 days)
- Windows & doors : 100% approved (18 decided, ~61 days) †
- Basement : 80% approved (15 decided, ~85 days)
- Conservatory / orangery : 71% approved (14 decided, ~56 days)
- New dwelling : 100% approved (10 decided, ~149 days) †
- Driveway / dropped kerb : 43% approved (7 decided, ~80 days)
† We hold no refused decisions for this type here, so treat a full approval rate with caution. The council's own portal has the complete history.
Method
Figures are aggregates over the public planning decisions we hold for Hounslow, 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.
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