Westminster/26/03111/NMA

Location

Approximate location - Contains OS data © Crown copyright and database right

Proposal

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.

Key dates

1. Received 12 May 2026
2. Validated 12 May 2026
3. Started 12 May 2026
4. Decided 12 Jun 2026

Planning history / related applications

No related planning applications have been identified in the current public OGL dataset.