26/03111/NMA

Status: Granted (12 Jun 2026)
Application Details
Description

Amendments to planning permission dated 7th April 2025 (RN:24/05111/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 vary the wording of Condition 18 to enable retail unit R3 located on the corner of Upper Grosvenor Street and Blackburne's Mew to open at 06.30 rather than 07.00.

Council

Westminster

Application Type

Non-material amendments

Date Received

12 May 2026

Date Validated

12 May 2026

Decision Date

12 Jun 2026

Location
Address

30 Grosvenor Square London W1K 6AN

Postcode

W1K 6AN

Coordinates

51.511184200000000, -0.153153300000000

Source: Application UPRN

Quick Info
UID
26/03111/NMA
Reference
26/03111/NMA
Status
Granted
Last Updated
12 Jun 2026