18 Whiteheath Avenue Ruislip Data via plota.co.uk
Proposal
Conversion of garage into habitable space including amendments to fenestrations (Application for a Certificate of Lawful Development for a Proposed Development) Data via plota.co.uk
Application progress
Under consideration
No decision has been issued yet. Plota predicts a decision around 1 Dec 2026, from Hillingdon's recent extensions.
Site constraints 3
Checked on 17 October 2026. 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
- Received
- 8 Oct 2026
- Validated
- 8 Oct 2026
- Ward
- RUISLIP 2022
- Case officer
- Show
- Target decision
- 3 Dec 2026
- Agent
- Show
Decision outlook
Day 20 of the 56-day target. Hillingdon usually decides extensions by day 54.
Plota live figures for extensions decided by Hillingdon in the last twelve months, from validation. Hillingdon decision record →
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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18 Whiteheath Avenue Ruislip
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