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Duke's Mews London

26/01886/LBCListed Building Consent ApplicationApproved
Listed building consent

Approved on 1 May 2026

Site boundary (council red line)

Proposal

Repairs to deteriorated roof elements and timber windows. Redecoration of previously painted external elements.

Received
23 March 2026
Ward
Marylebone
Agent
MAPP Building Consultancy
  1. Received23 Mar
  2. Validated23 Mar
  3. Consult.
  4. Target18 May
  5. Decided1 May

Decided in 39 days (council typically 49)

About this application

This is a heritage application for window replacement at Duke's Mews London. Westminster has handled 2,677 applications of this type. This one was decided in 39 days, 10 days quicker than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 15 listed buildings nearby. There are no previous applications recorded at this address. In the past year there have been 171 applications across Marylebone. We hold 1,068 applications in total for the W1U postcode area.

93% of heritage 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 3EF
Application type
Listed Building Consent Application
Scale / size
Small

Planning application dates

Date validated
23 March 2026
Target decision date
18 May 2026

Applicant and agent

Agent
MAPP Building Consultancy
Agent address
180 Great Portland Street London W1W 5QZ United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14796884
Comments
0
Documents
9

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: 9 and 11, Duke Street W1On this site
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • 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.

Source: Westminster

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

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