Amendments to planning permission dated 17 August 2020 (RN: 19/07344/FULL (as amended by RNs: 21/03678/NMA and 21/05390/NMA)) for 'Demolition of existing rear extension, excavation of basement under property including front lightwell and vault, erection of a basement and ground floor rear extension, alterations to the ground floor front elevation in connection with conversion of property into one 3 bed unit and one 2 bed unit'. Namely, amendments to basement and ground floor layouts, and windows and doors in the rear yard and front lightwell at basement and ground floor levels.

Amendments to planning permission dated 17th August 2020 (RN 19/07344/FULL) for the demolition of existing rear extension, excavation of basement under property including front lightwell and vault, erection of a basement and ground floor rear extension, alterations to the ground floor front elevation in connection with conversion of property into one 3 bed unit and one 2 bed unit. Namely, alterations to rear yard elevation to replace three windows with French doors at ground floor level, with juliet balconies and white painted render treatment to the ground and basement level walls.

Amendments to planning permission dated 17 August 2020 (RN: 19/07344/FULL) for the: Demolition of existing rear extension, excavation of basement under property including front lightwell and vault, erection of a basement and ground floor rear extension, alterations to the ground floor front elevation in connection with conversion of property into one 3 bed unit and one 2 bed unit. Namely, to allow changes to the rear yard windows and doors.

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.