Haymarket House 28 - 29 Haymarket London SW1Y 4SP Data via plota.co.uk
Proposal
Details of a mock-up on site showing the treatment and relationship of the partitions to the windows; pursuant to condition 20 of planning permission dated 15th January 2025 () Data via plota.co.uk
Application progress
This application is under consideration - no decision has been issued yet. A decision is expected by 5 Nov 2026.
Documents 4
Other documents 4
Associated applications 3
Part of
Conditions 3 discharged · 20 awaiting decision
- ConditionsDetails of a mock-up on site showing the treatment and relationship of the partitions…This application26/06110/ADFULL
Show 1 more · 1 approved
Site constraints 7
Checked on 12 September 2026. Historic England, the Environment Agency, Natural England 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
- Approval of Details (Full PP)
- Postcode
- SW1Y 4SP
- Received
- 7 Sept 2026
- Validated
- 10 Sept 2026
- Ward
- St James's
- Case officer
- Show
- Target decision
- 5 Nov 2026
- Applicant
- Show
- Agent
- Criterion Capital
Public comments
No public comments yet.
Last counted 12 Sept 2026
Consultation & key dates
- Env. assessment
- No
Historical activity at this location
27 previous applications on record - archival context, not part of the live application.
Previous applications at this address
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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Haymarket House 28 - 29 Haymarket London SW1Y 4SP
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Referenced application
Council archive
Haymarket House 28 - 29 Haymarket London SW1Y 4SP
Extensions at second to seventh floor levels; new eighth floor and roof top plant screen; and alterations to Haymarket and Oxenden Street frontages in connection with use as a hotel.
- Received
- 3 May 2024
- Outcome
- Pending
