Non-material amendment to planning permission (ref: 2021/01039/VAR) dated 3 February 2022, for the development: 'Variation of Condition 2 (approved drawings) to allow minor material amendments to planning permission (ref: 2020/00646/FUL) dated 24 November 2020, for "The redevelopment of the site comprising the demolition and removal of the existing timber shed buildings, the retention of the existing office and former recording studio buildings and the development of part-basement, part-1, part-2, part-3 storey buildings, refurbishment of the office building and development of a first floor extension to the recording studio; to be used as office (Use Class B1), associated access works and cycle parking spaces'. In conjunction with minor external and internal alterations to the approved buildings, the amendments include: installation of new windows on south elevation and the reconfiguration of the plant enclosure at roof level (Block A), increase in parapet heights (infill elements) and reconfiguration to provide a brick clad boundary wall with the Cambridge Grove properties (Block B); and alterations to provide an enclosed bike store fronting Cambridge Grove (Building C).". Amendments sought relate to changes to the landscaping scheme (condition 27) by way of the addition of trees and landscaping.

Amendments to planning permission dated 20 June 2016 (RN: 15/10444) for: Variation of Condition 1 of planning permission dated 8 December 2011 (RN10/01741/FULL) for development of 55-91 Knightsbridge (including retention of Knightsbridge and William Place facades) to provide retail (Class A1) at basement and ground floor levels, office ( Class B1) at part ground, first, and second floor levels and residential flats at part ground, part first,part 2nd and 3rd to 5th floor levels. Off street servicing and new sub basement car park. Removal and replacement of existing tree on William Street. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Restoration and repair of external facades and roofs to 3-7 William Street including reinstatement of original roof profile at 4 William Street, conversion of 1st to 3rd floor levels of 3 and 4 William Street for residential purposes ( Class C3). Namely, the substitution of new drawings to allow minor material amendments comprising a revised number and mix of residential units; the provision of a terrace for a residential unit on the western end of the building; erection of a lift shaft to the rear of 4 William Street; alterations to shopfront of Nos. 3 - 4 William Street; extension at 4th floor level to the rear of Knightsbridge; and reconfiguration of the fenestration. Namely, amendment to the external air vent at 4 William Street.