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26 Grosvenor Street London W1K 4QJ

25/06927/ADFULLApproval of Details (Full PP)Approved
Discharge / amendments

Approved on 18 November 2025

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 drawings of windows pursuant to condition 10 of planning permission dated 3rd July 2025 (RN: 25/01853/FULL).

Received
26 September 2025
Ward
West End
  1. Received26 Sep
  2. Validated26 Sep
  3. Consult.
  4. Target21 Nov
  5. Decided18 Nov

Decided in 53 days (council typically 49)

About this application

This is an application to discharge conditions at 26 Grosvenor Street London W1K 4QJ. Westminster has handled 3,063 applications of this type. This one was decided in 53 days, 4 days longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 13 listed buildings nearby. There have been 4 other applications at this address. In the past year there have been 484 applications across West End. We hold 886 applications in total for the W1K 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.See what's approved near your address

Application details

Postcode
W1K 4QJ
Application type
Approval of Details (Full PP)
Scale / size
Small

Planning application dates

Date validated
26 September 2025
Target decision date
21 November 2025

Applicant and agent

Agent
DP9
Agent address
100 Pall Mall London SW1Y 5NQ United Kingdom

Planning decision

Statutory period
56 days

Additional information

Planning Portal ID
PP-14359475
Comments
0
Documents
6

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: 21 and 22, Grosvenor Street W1On or next to this site · +1 more
  • Article 4 direction: Article 4 Basement Development Permitted Rights Removed+1 more
  • Brownfield land register: Claridge House 32 Davies Street London W1K 4NDRegister site at or near this address
  • Flood zone 1: Low probability (rivers and sea)
Also checked, none recorded (20)

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 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
    26 Sep

    Details drawings of windows pursuant to condition 10 of planning permission dated 3rd July 2025 (RN…

    This applicationApprovedDischarge of conditions25/06927/ADFULL
  2. 2025
    26 Sep

    Details of proposed replacement windows on the rear side elevation must be in timber, and not metal pursuant…

    ApprovedDischarge of conditions25/06928/ADFULL
  3. 2025
    26 Sep

    Details drawings of new pavement lights and forcourt paving pursuant to condition 12 of planning permission…

    ApprovedDischarge of conditions25/06957/ADFULL
  4. 2025
    22 Sep

    Detailed drawings of the new front door, which must be a true panelled timber door including sections at…

    ApprovedDischarge of conditions25/06791/ADFULL
  5. 2025
    2 Sep

    Details of planting scheme for lower ground and first floor terraces pursuant to Condition 3 of planning…

    ApprovedAll OtherRelated25/06230/ADFULL
  6. 2025
    22 Aug

    Detailed drawings of the windows including sections at 1:10, 1:5 and details of any glazing bars at 1:2…

    ApprovedAll OtherRelated25/06028/ADFULL
  7. 2025
    8 Apr

    New terrace at first floor level to rear, increase size of rear terrace at lower ground floor level…

    ApprovedFull planning permissionPart of25/01853/FULL

Source: Westminster

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

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