Haymarket House 28 - 29 Haymarket London SW1Y 4SP
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 15 January 2025 (24/02980/FULL).
- Received
- 10 September 2026
- Public comments
- 0 · last counted 6 October 2026
- Council
- City of Westminster
- ReceivedSubmitted10 Sep
- ValidatedValidated10 Sep
- Consult.Consultation
- TargetTarget Date
- DecidedDecided
This is a planning application for window replacement at Haymarket House 28 - 29 Haymarket London SW1Y 4SP. Westminster has handled 26,489 applications of this type and approves 88% of them, typically deciding them in 54 days. It was submitted on 10 September 2026 and is still awaiting a decision. The site is in the Haymarket conservation area, with 14 listed buildings nearby. There have been 3 other applications at this address. We hold 961 applications in total for the SW1Y postcode area.
Application Details
Applicant & Agent
Planning Application Dates
Planning Decision
Publicity
Appeal
Additional Information
Source: Westminster
Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.
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Associated applications
- 202615 Sep
Details of existing and proposed drawings and full height sections (at a scale of 1:10) of the windows to…
RefusedApplicationFiled alongside26/06078/ADFULL - 202610 Sep
Details of a mock-up on site showing the treatment and relationship of the partitions to the windows pursuant…
This applicationPendingApplication26/06110/ADFULL
Planning history at this site
6 other applications at this property, newest first.
- 202626 May
Details of a completed Appendix A checklist from the Code of Construction Practice, signed by the applicant…
ApprovedAll Other26/03318/ADFULL - 202627 Feb
Display of two externally illuminated double sided projecting signs each measuring 0.42m x 0.62m to the…
RefusedAdvertisement consent26/01271/ADV - 202627 Feb
Alterations to existing shopfront on Haymarket elevation including new glazed shopfront with new entrance…
RefusedApplication26/01270/FULL - 20265 Jan
Haymarket House - Condition 3 (CoCP)
RefusedDischarge of conditions26/00010/ADFULL - 202512 Jun
Display of two externally illuminated static banner advertisements, set within a replica 1:1 scaffold shroud…
RefusedAdvertisement consent25/04023/ADV - 202312 Jul
Confirmation that demolition works to the roof top plant enclosure constitute a material operation which has…
ApprovedCertificate of Lawfulness (existing)23/04793/CLEUD
Planning constraints
Designations that overlap or adjoin the site outline.
- Conservation area: Haymarket
- Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
- Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (22)
flood storage areas, listed buildings, tree preservation orders, green belt, scheduled monuments, World Heritage Sites, World Heritage Site buffer zones, registered parks and gardens, registered battlefields, Heritage at Risk entries, nutrient neutrality catchments, national parks, National Landscapes, SSSIs, Special Areas of Conservation, Special Protection Areas, Ramsar sites, ancient woodland, national nature reserves, local nature reserves, heritage coasts and brownfield registers.
A guide only, from official open data; it is not a planning search. Flood zones cover rivers and sea, not surface water.
Data © Crown copyright and others · sources and licences
Contains public sector information from planning.data.gov.uk (MHCLG and local planning authorities), licensed under the Open Government Licence v3.0. © Crown copyright and database right 2026.
© Historic England 2026. Contains Ordnance Survey data © Crown copyright and database right 2026. The Historic England GIS Data contained in this material was obtained on 2026-10-09. The most publicly available up to date Historic England GIS Data can be obtained from HistoricEngland.org.uk.
© Natural England copyright. Contains Ordnance Survey data © Crown copyright and database right 2026.
© Environment Agency copyright and/or database right 2026. All rights reserved. Flood Map for Planning, Open Government Licence v3.0.
Contains Ordnance Survey data © Crown copyright and database right 2026.
Source: Office for National Statistics licensed under the Open Government Licence v.3.0. Contains OS data © Crown copyright and database right 2026.
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