Non-material amendment to planning permission reference: 2020/00794/VAR dated 26th June 2020 for the "Variation of Condition 2 (approved drawings) and Condition 35 (composition of ground floor) and removal of Condition 33 (hours of opening for the A1 unit) of planning permission reference: 2018/02776/FUL dated 26th July for 'Change of use of building from offices (Class B1) with mixed commercial units on the ground floor into a hotel (Class C1) with commercial use on the ground floor; recladding of whole building to all elevations; erection of a two-storey roof extension; erection of a ground floor infill extension to the front elevation; and associated highways works'. Amendments sought are alterations to the layout of the approved ground floor with a reconfiguration of the reception area of the hotel and removal of the A1 coffee shop unit; and associated alterations to the shopfront to remove the entrance doors to the A1 unit." Amendment sought is the demolition of the existing substation and replacement in same location.

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.