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1 Sherlock Mews London W1U 6DW

25/09081/ADFULLApproval of Details (Full PP)Approved
Discharge / amendments

Approved on 5 January 2026

Council decision: Application PermittedDelegated (officer decision)

Approximate site (title boundary)
Boundary © HM Land Registry, © Ordnance Survey · details

This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey AC0000851063. Conditions of use.

Proposal

Details of windows, doors, parapet gutter and leadwork details pursuant to conditions 4 and 5 of planning permission dated 13th November 2024 (RN: 24/03975/FULL)

Received
15 December 2025
Decision level
Delegated (officer decision)
Ward
Marylebone
  1. Received15 Dec
  2. Validated15 Dec
  3. Consult.
  4. Target9 Feb
  5. Decided5 Jan

Decided in 21 days (council typically 49)

About this application

This is an application to discharge conditions at 1 Sherlock Mews London W1U 6DW. Westminster has handled 3,063 applications of this type. This one was decided in 21 days, 4 weeks quicker than Westminster's typical decision time. The site is in the Portman Estate conservation area, with 2 listed buildings nearby. There have been 2 other applications 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.

92% of conditions 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.Planning something similar? See what gets approved on your street

Application details

Postcode
W1U 6DW
Application type
Approval of Details (Full PP)
Scale / size
Small

Planning application dates

Date validated
15 December 2025
Target decision date
9 February 2026

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14568099
Comments
0
Documents
7

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+1 more
  • 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. 2025
    15 Dec

    Details of windows, doors, parapet gutter and leadwork details pursuant to conditions 4 and 5 of planning…

    This applicationApprovedDischarge of conditions25/09081/ADFULL
  2. 2024
    14 Jun

    Erection of mansard roof extension, replacement of windows and doors, and internal reconfiguration.

    PendingFull Planning Permission ApplicationPart of24/03975/FULL

Source: Westminster

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

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