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48 Gloucester Place Mews London W1U 8BD

26/05514/ADFULLApproved
Discharge / amendments

Approved on 27 August 2026

Site boundary (council red line)

Proposal

Details of amended design of carriage doors, to the left-hand ground-floor opening; sash window with sidelights and infill beneath, to the right-hand ground-floor opening; upgrading of the existing front sash windows to accommodate double glazing (and methodology statement); conservation rooflights; and casement windows pursuant to condition 5 of planning permission dated 24 July 2026 (26/02870/FULL).

Received
13 August 2026
  1. Received13 Aug
  2. Validated13 Aug
  3. Consult.
  4. Target
  5. Decided27 Aug

Decided in 14 days

About this application

This is a planning application for window replacement at 48 Gloucester Place Mews London W1U 8BD. Westminster has handled 27,108 applications of this type. This one was decided in 14 days, 5 weeks quicker than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 20 listed buildings nearby. There has been 1 other application at this address. We hold 1,070 applications in total for the W1U postcode area.

Application details

Postcode
W1U 8BD

Planning application dates

Date validated
13 August 2026

Site constraints

Checking the site
2/3
Council recordsAppealsFlood risk

Designations that overlap or adjoin the site outline.

  • Conservation area: Portman Estate
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed
  • 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 2026-11-03. 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
    13 Aug

    Details of amended design of carriage doors, to the left-hand ground-floor opening; sash window with…

    This applicationApprovedApplication26/05514/ADFULL
  2. 2026
    30 Apr

    Refurbishment and reconfiguration of existing mews dwelling including internal alterations, front elevation…

    ApprovedFull Planning Permission ApplicationPart of26/02870/FULL

Source: Westminster

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

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