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.

Minor material amendment (S.73) to vary condition no.2 (approved plans), seeking to allow for a larger first floor rear extension in pursuant to planning permission reference 201050FUL dated 08/07/2020 for' Conversion of the existing property into 5 self-contained flats (2 x studio, 1x1 bed and 2x2 beds); single-storey rear extension; part first floor rear extension; alteration of roof from hip to gable end; rear roof extension; installation of one roof light to front roof slope and two roof lights to the roof crown; alterations to the fenestration of the side elevation; and alterations to the side boundary treatment (following part demolition of the rear outbuilding).'