16 Sidmouth Drive Ruislip Data via plota.co.uk
Proposal
Conversion of roof space to habitable use to include a rear dormer and 3 front roof lights (Application for a Certificate of Lawful Development for a Proposed Development) Data via plota.co.uk
Application progress
Approved on 22 Sept 2026 · Last checked 23 Sept 2026
Site constraints 5
Checked on 6 October 2026. The pin for this application is the centre of its postcode rather than the building, so distances to nearby designations are measured from the postcode and can be out by the width of the postcode area. Historic England, the Environment Agency, Natural England, Transport for London (public transport access levels, Powered by TfL Open Data, OGL v3.0, contains OS data © Crown copyright and database right 2025) and council datasets, Open Government Licence. A boundary can run through a site and the council holds the definitive record: confirm with the council before relying on this.
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Important details
- Council
- Hillingdon
- Postcode
- HA4 0BT
- Received
- 3 Aug 2026
- Validated
- 3 Aug 2026
- Ward
- RUISLIP MANOR 2022
- Case officer
- Show
- Target decision
- 28 Sept 2026
- Decision
- Approval
- Decision date
- 22 Sept 2026
- Agent
- Show
How this decision compares
Decided in 50 days from validation, 4 days faster than Hillingdon's median of 54 for extensions. Approved, as 92% of extensions here are.
Plota live figures for extensions decided by Hillingdon in the last twelve months, from validation. Hillingdon decision record →
Historical activity at this location
2 nearby applications on record - archival context, not part of the live application.
Nearby activity
Hillingdon ranks #194 out of 296 councils for householder decision speed. Householder applications are slightly more likely to be approved here (90%) than the national average (90%).
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16 Sidmouth Drive Ruislip
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