Variation of condition 1 of planning permission dated 3 March 2020 (RN 19/09981/LBC) for the Variation of condition 1 of listed building consent dated 20 February 2016 (RN: 15/10446/LBC) for the: Development of 55-59 Knightsbridge (including retention of Knightsbridge facades, demolition and the dismantling and reinstatement of roofs and chimneys) to provide retail (Class A1) at basement and ground floor levels and 18 residential flats at first, part second floor and third to fifth floor levels. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Namely, to allow alterations to William Street Residential Entrances, door to Wilton Place, fenestration changes to rear facade, increased lift Shaft to rear face of William Street, merlons to west elevation, West façade end bay reconstructed, chimneys to coping stone detail in mansard, pavilion gable apex roof stones, ridge height of mansard roofs, projecting signs to shopfronts, retained parapet to no. 55 Wilton Place, general layout alterations, and associated works from RN 19/09981/LBC, NAMELY, to vary the approved drawing numbers to amend the design of the external vent at no. 4 William Street and the removal of a ceiling at third floor level.

Amendments to planning permission dated 18 April 2016 (RN: 11/10055) for: 1) Use of void areas within station building at basement, ground and mezzanine floors fronting onto Oxford Street for retail purposes, and erection of a building comprising first and six upper floors with roof top plant to the north of Fareham Street for use as 69 flats (Site C). 2) Use of ground floor void area fronting onto Dean Street and Fareham Street for retail purposes and erection of a building comprising first and five upper floors with roof top plant to the south of Fareham Street for use as 23 flats (Site D) NAMELY, amendment to Block C parapet heights and provision of inward openable windows; and on Blocks C and D the removal of the building maintenance unit and installation of a rooftop generator to approved under planning permission Ref. 20/00345/NMA.

Amendments to planning permission dated 21 October 2019 (RN: 18/04163) for: Variation of Conditions 1, 8,and original condition 24 and removal of Condition 10 of planning permission dated 23 February 2018 (RN: 16/11248) for Demolition of existing buildings on site and redevelopment to provide up to 30 residential units (Class C3), office floorspace (Class B1), gymnasium (Class D2), retail art gallery (Class A1), restaurant (Class A3) and retail (Class A1) floorspace; creation of a new pedestrian link through the site between Yarmouth Place and Carrington Street; erection of buildings either side of the new pedestrian link between 4 and 8 storeys in height excavation to create additional basement accommodation provision of on site car parking, cycle parking and delivery bay on Yarmouth Place new landscaping including improvement works to Yarmouth Place associated alterations; NAMELY to amend the approved drawings to changes to the party wall with 100 Piccadilly and increase the number of car parking spaces by (additional 44 spaces) within the development, and to change the wording of Condition 8 to allow the demolition and construction phases of the COCP to be submitted separately, and to allow the demolition clauses to be included in the S106 agreement. Further alterations received to reduce the size of the basement levels at 01-04; reduction in the size of the art gallery and gym; parking entrance reconfigured; Yarmouth Place elevation amended. Namely, various reconfigurations of cores, residential layouts, car lifts and flats, the realignment of the boundary walls and replacement of Condition 38 (waste storage).

Amendments to planning permission dated 27 June 2018 (RN: 18/01027/FULL) for variation of condition 1 of planning permission dated 25 January 2017 (RN 16/02747/FULL) for the demolition of the existing buildings and redevelopment of the site to provide a six storey building comprising 9 self contained apartments, single storey basement level car parking, the provision of internal plant, cycle, refuse and recycling storage and the provision of roof level photovoltaic panels and green and sedum roofs, namely, to amend Sustainability and Energy Report to make two design alterations including changes to thermal fabric elements and to the proposed heating system. NAMELY, to amend the material of the balustrade to glass on the south-east elevation.