5 Chesterfield Hill London W1J 5BL Data via plota.co.uk
Proposal
Replacement of an existing first floor rear window with a pair of French doors within the existing opening; and installation of external air conditioning plant at roof level within an acoustic enclosure, with the adjacent parapet raised to screen it from view. Data via plota.co.uk
Application progress
Approved on 19 Oct 2026 · Delegated Decision · Last checked 19 Oct 2026
Documents 25
Decision & officer reports 2
Statements & assessments 3
Plans & drawings 10
Application forms 1
Consultation & comments 1
Other documents 8
Site constraints 11
Checked on 6 October 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
- Westminster
- Application type
- Full Planning Permission Application
- Postcode
- W1J 5BL
- Received
- 18 Aug 2026
- Validated
- 4 Sept 2026
- Ward
- West End
- Case officer
- Show
- Target decision
- 30 Oct 2026
- Decision
- Application Permitted
- Decision date
- 19 Oct 2026
- Decision level
- Delegated Decision
- Applicant
- Show
- Agent
- Interiors With Art Ltd.
How this decision compares
Decided in 45 days from validation, 10 days faster than Westminster's median of 55 for extensions. Approved, as 88% of extensions here are.
Plota live figures for extensions decided by Westminster in the last twelve months, from validation. Westminster decision record →
Public comments
No public comments yet.
7 neighbours consulted · Last counted 19 Oct 2026
Consultation & key dates
- Alt. reference
- PP-15166519
- Planning Portal ref
- PP-15166519
- Comments by
- 14 Oct 2026
- Site or press notice
- 23 Sept 2026
- Env. assessment
- No
Historical activity at this location
25 nearby applications on record - archival context, not part of the live application.
Nearby activity
Westminster is slower than most councils at deciding householder applications, ranking #258 out of 296. Only 28% of applications have the time limit extended, well below the 41% national average - the council usually decides on time. Westminster is also one of the strictest councils - it refuses more householder applications than almost any other, with only 81% approved vs 90% nationally.
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5 Chesterfield Hill London W1J 5BL
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