Demolition of the majority of existing buildings on Plots A, B, C & D including Canterbury House, Stangate House, 10 Royal Street and 20 Carlisle Lane; part retention of existing buildings on Plots E and conversion of the railway arches (Plot F); comprehensive phased redevelopment of the site to provide a mixed use development of buildings 12-16 storeys in height containing commercial floorspace (including lab enabled floorspace), residential, retail and community floorspace; enhanced public realm and pedestrian routes; re-location of listed sculpture; servicing, ancillary plant and storage, cycle parking and other associated and ancillary works.

Demolition of the majority of existing buildings on Plots A, B, C & D including Canterbury House, Stangate House, 10 Royal Street and 20 Carlisle Lane; part retention of existing buildings on Plots E and conversion of the railway arches (Plot F); comprehensive phased redevelopment of the site to provide a mixed use development of buildings 12-16 storeys in height containing commercial floorspace (including lab enabled floorspace), residential, retail and community floorspace; enhanced public realm and pedestrian routes; re-location of listed sculpture; servicing, ancillary plant and storage, cycle parking and other associated and ancillary works

Amendment to planning permission dated 20 June 2016 (RN:15/10444/FULL) for the variation of Condition 1 of planning permission dated 8 December 2011 (RN:10/01741/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, variation of Condition 17 with substitution of a revised Energy Strategy.

Prior approval application under Schedule 2, Part 3, Class MA (General Permitted Development) (England) Order 2015 (as amended) for conversion of lower ground floor into one self contained unit, modification of ground floor to lower ground floor staircase, and associated works. (Ground Floor and main shopfront to remain as current use (Class E).

Amendments to planning permission dated 07 April 2017 (RN:16/06616/FULL) for the: Demolition of Ergon House and construction of eight storey residential building incorporating a ground floor retail unit (Class A1) and partial demolition and reconstruction of rear wing of 9 Millbank and conversion to residential use to provide 161 residential flats. Conversion of the gatehouse on Dean Bradley Street to provide a single dwelling unit. Provision of basement car parking and landscaped courtyards, NAMELY to vary condition 31 to read as follows: 'You must apply to us for approval of details of tests undertaken on the installed CHP system to demonstrate that it conforms with the details modelled in the updated air quality assessment presented in the letter from Parsons Brinkerhoff dated 11th November 2016 and titled "WSP | Parsons Brinckerhoff Response to GLA Air Quality Comments - Ergon House (16/06616/Full). You must submit the relevant details to us for approval within three months of occupation. You must then carry out the development in accordance with the approved details.'

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.