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97 York Street London W1H 4QQ

26/00001/FULLApproved

Approved on 15 October 2026

Site boundary (council red line)

Proposal

Change of use of the Lower Ground and Ground Floors from Commercial (Class E) to Residential (Class C3), with associated internal and external alterations including new windows to rear elevation, new metal railings to front and rear, the reinstatement of the front lightwell, installation of an air source heat pump within front lightwell (Linked to 26/00002/LBC) REVISED PLANS RECEIVED AND CHANGE TO DESCRIPTION OF DEVELOPMENT

Received
1 January 2026
  1. Received1 Jan
  2. Validated1 Jan
  3. Consult.
  4. Target
  5. Decided15 Oct

Decided in 287 days

About this application

This is a planning application for a change of use at 97 York Street London W1H 4QQ. Westminster has handled 27,108 applications of this type. This one was decided in 287 days, 34 weeks longer than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 11 listed buildings nearby. There has been 1 other application at this address. We hold 896 applications in total for the W1H postcode area.

Application details

Postcode
W1H 4QQ

Planning application dates

Date validated
1 January 2026

Applicant and agent

Architect profile
SI&CO LTD

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • Listed building: Grade II: Harcourt ArmsOn or next to this site · +2 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (21)

flood storage areas, 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 2026-11-03. 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.

Associated applications

  1. 2026
    1 Jan

    Change of use of the Lower Ground and Ground Floors from Commercial (Class E) to Residential (Class C3), with…

    This applicationApprovedApplication26/00001/FULL
  2. 2026
    1 Jan

    Change of use of the Lower Ground and Ground Floors from Commercial (Class E) to Residential (Class C3), with…

    ApprovedListed building consentPart of26/00002/LBC

Source: Westminster

Contains public sector information from the Planning London Datahub, licensed under the Open Government Licence v3.0.

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