144 Sinclair Road London W14 0NL Data via plota.co.uk
Proposal
De-conversion of the existing building from 3no self-contained flats into a single family dwellinghouse; erection of an additional floor at roof level, formation of a roof terrace and erection of glazed staircase enclosure, installation of 3no air conditioning units, 2no air source heat pumps with acoustic enclosures above the roof of third floor extension; replacement of the existing French doors with new doors at ground floor level and replacement of the existing window with French doors at basement level to the rear elevation; replacement of all remaining existing windows with new windows. Data via plota.co.uk
Application progress
Approved on 12 Aug 2026 · Last checked 20 Oct 2026
Documents 33
Decision & officer reports 2
Statements & assessments 5
Plans & drawings 12
Application forms 1
Other documents 13
Site constraints 7
Checked on 3 November 2026. Historic England, the Environment Agency, Natural England, the Planning Inspectorate, 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
- Hammersmith and Fulham
- Application type
- Full Planning Application
- Postcode
- W14 0NL
- Received
- 23 Dec 2025
- Validated
- 9 Feb 2026
- Ward
- Brook Green
- Case officer
- Show
- Decision
- APPLICATION APPROVED
- Decision date
- 12 Aug 2026
- Applicant
- Show
- Agent
- Show
How this decision compares
Decided in 184 days from validation, 108 days slower than Hammersmith and Fulham's median of 76 for extensions. Approved, as 98% of extensions here are.
Plota live figures for extensions decided by Hammersmith and Fulham in the last twelve months, from validation. Hammersmith and Fulham decision record →
Consultation & key dates
- Consultation
- 10 Feb 2026
- Comments by
- 11 Mar 2026
- Site or press notice
- 18 Feb 2026
Historical activity at this location
26 previous applications on record - archival context, not part of the live application.
Previous applications at this address
Nearby activity
Hammersmith and Fulham is one of the slowest councils in England for householder decisions, ranking #281 out of 296. The council extends the time limit on 63% of applications - one of the highest rates in England. Expect your application to take longer than the standard deadline. Householder applications are more likely to be approved here than most councils, with a 99% approval rate vs 90% nationally.
Freehold boundary: © Crown copyright and database rights 2026, HM Land Registry. Polygons © Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use
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144 Sinclair Road London W14 0NL
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