Planning application
30 Grosvenor Square London W1K 6AN
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of permanent external planter boxes at ground floor level on the Upper Grosvenor Square elevation and associated works.
As published by the council, reference 26/00408/FULL
Application record
- Reference
- 26/00408/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 23 Jan 2026
- Validated
- 23 Jan 2026
- Ward
- West End
- Postcode
- W1K 6AN
Site history
Applications at this address on the Westminster register
This site has had 14 applications since 2025: 9 approved, 0 refused.
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26/04647/NMA Decided
30 Grosvenor Square London W1K 6AN
Amendments to planning permission dated 10 April 2026 (RN: 25/09270/FULL) for the: Installation of permanent external planter boxes at ground floor level on the Upper Brook Street elevation and associated works. NAMELY, to install additional planter boxes to set the perimeter of the external dining space.
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26/04646/ADFULL Decided
30 Grosvenor Square London W1K 6AN
Detailed drawings and specification of the external dining arrangement and furniture, and Operational Management Plan relating to Unit R5 pursuant to the partial discharge of condition 46 (b) of planning permission dated 7th April 2025 (RN: 24/05111/FULL).
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26/03111/NMA Awaiting decision
30 Grosvenor Square London W1K 6AN
Amendments to planning permission dated 7th April 2025 (RN:24/05111/FULL) for Variation of conditions 1 and 46 of planning permission dated 18 February 2021 (RN 20/06601/FULL) for, 'Alterations to the existing building including retention & repair of the front and side facades, part demolition & replacement of the rear facade, rear extension of the 2nd-5th floors, removal of existing & introduction of a new 6th floor, introduction of a new set-back 7th floor, extension of the existing basement levels to include two additional basement levels (including one mezzanine level), installation of roof plant & plant screen, public realm works including hard & soft landscaping, removal of the security kiosks, fencing, bollards & gates/barriers to Blackburne's Mews & Culross Street, removal & replacement of 6 No. trees in front of the Grosvenor Square elevation & re-opening of the road on the western side of the Square, all in connection with the use of the building as a hotel (Class C1) with flexible retail/restaurant use at 1st floor, ground floor and basement 1 (Class A1/Class A3/Class C1), flexible restaurant/bar use at 7th floor (Class A3/Class A4/Class C1), leisure/spa facilities within the basement (Class D2/Class C1) & an ancillary ballroom, event spaces, back of house facilities & associated car, cycle parking & servicing facilities accessed from Blackburne's Mews, & other associated works'. Namely, to extend the permitted hours of operation to enable the operator to open at 06.30.
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26/00768/ADLBC Granted
30 Grosvenor Square London W1K 6AN
Detailed drawings and/or full particulars of the alterations at ground floor level including shopfronts and signs pursuant to condition 4 (part 2) of listed building dated 18th February 2021 (RN:21/00012/LBC) (Linked 26/00778/ADFULL)
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26/00778/ADFULL Granted
30 Grosvenor Square London W1K 6AN
Detailed drawings and/or full particulars of the alterations at ground floor level including shopfronts and signs pursuant to Condition 4 (Part 2) of planning permission dated 7th April 2025 (RN:24/05111/FULL) (Linked 26/00768/ADLBC)
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26/00404/ADFULL Granted
30 Grosvenor Square London W1K 6AN
Details of external dining arrangement and furniture and operational management plan relating to unit R3 pursuant to partial discharge of condition 46(b) of planning permission dated 24/05111/FULL (07/04/2025).
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25/09322/ADFULL Granted
30 Grosvenor Square London W1K 6AN
Detailed drawings at 1:10 of the new planters, and a sample of their cladding pursuant to condition of planning permission dated 7th April 2025 (RN: 24/05112/FULL).
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25/09313/ADFULL Granted
30 Grosvenor Square London W1K 6AN
Detailed drawings and specification of the external dining arrangement and furniture, and Operational Management Plan relating to Unit R5 pursuant to the partial discharge of condition 46 (b) of planning permission dated 7th April 2025 (RN: 24/05111/FULL).
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25/09270/FULL Granted
30 Grosvenor Square London W1K 6AN
Installation of permanent external planter boxes at ground floor level on the Upper Brook Street elevation and associated works.
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25/09397/ADLBC Granted
30 Grosvenor Square London W1K 6AN
Detailed drawings of external signage for Retail Unit 5 (R5) pursuant to Condition 4 part 2 of listed building consent dated 18 February 2021 (RN 21/00012/LBC)
Timeline
Dates from the published record
-
23 Jan 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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Decision
Awaiting decision
Decision expected by 20 March 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 65 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
13 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
Watch members (£5 a month) open the document list from here.
Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
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Flat 11 46 Upper Grosvenor Street London W1K 2NW
87% historically approved · decision due ~14 May
Detailed drawings of existing and proposed windows with key details pursuant to condition 2 of planning permission dated 6th November 2025 (RN: 25/05340/FULL).
Awaiting decision Full applications Windows or glazing 5 docs -
Flat 11 46 Upper Grosvenor Street London W1K 2NW
87% historically approved · decision due ~28 Sep
Variation of Condition 2 of planning permission dated 06 November 2025 (RN: 25/05340/FULL) for: Replacement of existing windows namely; to allow replacement windows constructed in aluminium rather than the original mild steel of the Crittall casements.
Awaiting decision Full applications Windows or glazing -
34 Grosvenor Square London W1K 2HD
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Details of new french doors pursuant to condition 4 of planning permission dated 17 March 2026 (RN: 25/08464/FULL)
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34 Grosvenor Square London W1K 2HD
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Replacement of existing external terrace in a new configuration and repositioning of entrance and steps
Awaiting decision Full applications -
41 Upper Grosvenor Street London W1K 2NH
External alterations including rooftop and rear extension at 41 Upper Grosvenor Street; and reconfiguration and amalgamation of existing residential accommodation (comprising 2 x 2bed and 1 x 1 bed) to provide 3 homes (1 x 2 bed and 2 x 3 bed) (Class C3) at 41 Reeves Mews; external alterations including rooftop and rear extension and terrace, loft conversion and new dormers and enlargement of basement at 41 Reeves Mews; and change of use of existing commercial use (Use Class E) to residential (Use Class C3) at lower ground of 41 Reeves Mews to facilitate shared cycle storage, refuse and plant facilities to serve both 41 Upper Grosvenor Street and 41 Reeves Mews; and associated landscaping across the site. [SITE INCLUDES 41 REEVES MEWS]
Granted Full applications Extension Loft or dormer 53 docs -
10 Upper Grosvenor Street London W1K 2NA
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Replacement of lantern skylights to match existing; repair and installation of insulation of the accessible roof surface; and other associated works.
Awaiting decision Full applications 8 docs
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