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24A Hay's Mews London W1J 5PY

25/06662/FULLApproved

Approved on 17 April 2026

Site boundary (council red line)

Proposal

Replacement of existing window with door to create new entrance to the courtyard.

Submitted
7 October 2025
  1. Received7 Oct
  2. Validated
  3. Consult.
  4. Target
  5. Decided17 Apr

Decided in 192 days

About this application

This is a planning application for window replacement at 24A Hay's Mews London W1J 5PY. Westminster has handled 27,078 applications of this type. This one was decided in 192 days, 20 weeks longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There has been 1 other application at this address. We hold 935 applications in total for the W1J postcode area.

Application details

Postcode
W1J 5PY

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Mayfair
  • Listed building: Grade II: 25-27, Charles Street W1On or next to this site · +4 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • Tree Preservation Order: Ref W97Protected tree on or next to this site · +1 more
  • Brownfield land register: 39 Hill Street London W1J 5LZRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (19)

flood storage areas, 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 and heritage coasts.

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. 2025
    7 Oct

    Replacement of existing window with door to create new entrance to the courtyard.

    This applicationApprovedApplication25/06662/FULL
  2. 2025
    17 Sep

    Internal demolition and refurbishment works; the creation of new entrance to the courtyard; and other…

    ApprovedListed building consentRelated25/06663/LBC

Source: Westminster

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

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