30, Grosvenor Square, W1K 6AN

SNN25/00058All OtherApproved

Approved on 22 April 2026

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

Registering to assign address numbering and postcode for additional addresses relating to 30 Grosvenor Square, London, W1K 6AN, development. See attached details.

Submitted: 12 August 2025
Council: City of Westminster

ReceivedSubmitted12 Aug
ValidatedValidated
Consult.Consultation
TargetTarget Date
DecidedDecided22 Apr

Decided in 253 days (council typically 49)

About this application

This is a planning application at 30, Grosvenor Square, W1K 6AN. Westminster has handled 1,770 applications of this type. This one was decided in 253 days, 29 weeks longer than Westminster's typical decision time. The site is in the Mayfair conservation area, with 20 listed buildings nearby. There have been 18 other applications at this address. In the past year there have been 474 applications across WEW_22. We hold 886 applications in total for the W1K postcode area.

92% of all other 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: W1K 6AN
Application type: All Other

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: United States of America EmbassyOn this site · +4 more
Article 4 direction: Article 4 Basement Development Permitted Rights Removed
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.

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

2025
12 Aug
Details of alterations at ground floor level including shopfronts and signs pursuant to Condition 4 (2)…
ApprovedListed building consentFiled alongside25/05638/ADLBC
2025
12 Aug
Registering to assign address numbering and postcode for additional addresses relating to 30 Grosvenor…
This applicationApprovedAll OtherSNN25/00058

Planning history at this site

20 other applications at this property, newest first.

Source: Westminster

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

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