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48 Gloucester Place Mews London W1U 8BD

26/02870/FULLFull Planning Permission ApplicationApproved
Full

Approved on 24 July 2026

Site boundary (council red line)

Proposal

Refurbishment and reconfiguration of existing mews dwelling including internal alterations, front elevation alterations, roof alterations, replacement windows and associated works.

Received
30 April 2026
Ward
Marylebone
Agent
Ian Wylie Architects
  1. Received30 Apr
  2. Validated30 Apr
  3. Consult.
  4. Target25 Jun
  5. Decided24 Jul

Decided in 85 days (council typically 49)

About this application

This is a full planning application for window replacement at 48 Gloucester Place Mews London W1U 8BD. Westminster has handled 4,484 applications of this type. This one was decided in 85 days, 5 weeks longer 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. In the past year there have been 171 applications across Marylebone. We hold 1,070 applications in total for the W1U postcode area.

86% of full applications at City of Westminster were approved. Across all application types, the council typically decides in about 7 weeks (median).

Based on decided applications received in the last 3 years.See what's approved near your address

Application details

Postcode
W1U 8BD
Application type
Full Planning Permission Application
Scale / size
Small

Planning application dates

Date validated
30 April 2026
Target decision date
25 June 2026

Applicant and agent

Agent
Ian Wylie Architects
Architect profile
IAN WYLIE ARCHITECTS LTD
Agent address
17 Nottingham Street London W1U 5EW

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14895870
Comments
0
Documents
23

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…

    ApprovedApplicationRelated26/05514/ADFULL
  2. 2026
    30 Apr

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

    This applicationApprovedFull26/02870/FULL

Source: Westminster

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

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