Variation of Condition 16 planning permission reference 17/02964/MATAMD (dated 5 April 2018 for Amendment to planning permission ref 13/03743/FULL3 granted for the demolition of all school buildings, with the exception of the Reception building, and part demolition of the North Stable block, and erection of 48 dwellings comprising 24x 4-bed houses, 16x 1-bed flats and 8x 2-bed flats and conversion of the stable block into 2x 2-bed residential units, together with 108 car parking spaces. Associated landscaping, hardstanding areas, cycle stores and bin stores. Conversion of existing Reception building to 799sqm of office floorspace (Class b1A) together with 8 dedicated car parking spaces and the construction of 2 tennis courts, designated car park. Erection of pavilion and amenity area for community use. Amendments to position of apartment blocks on the site, extension of apartment blocks at lower ground and upper ground floor levels, demolition of north stable block and erection of 2x 2-bed houses, alterations to proposed housing mix to provide 8x 1-bed and 16x 2-bed apartments, 24x 4-bed houses and 2x 2-bed houses, alterations to windows, doors and internal layout of House Types B and C, amendments to car parking, maintenance access to Wickham Court School, removal of pavilion and internal landscaping and footpaths. Discharge of condition 16 (layout of wheelchair units) for planning permission reference 13/03743/FULL3) to allow for Plot 30 to be built to wheelchair adaptable Building Regulations Part M4(2) rather than wheelchair user Building Regulations Part M4(3).

Variation of Condition 1 of planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to amend the approved drawings to replace a single ground floor level window on the north elevation with a door and to erect of a bridge over the existing lightwell to provide a secondary fire-protected egress point.

Non-material amendment to condition 2 (approved plans) of planning permission dated 18.08.2015 ref. 14/AP/2922 for: "Variation of Condition 2 (approved plans) of planning permission 12/AP/3558 dated 04/06/2013 for the 'Demolition of existing buildings and erection of a replacement building of five to eight storeys in height (max height of 27.5m), plus basement, comprising 53 residential units, 633 sqms of retail floorspace (Use Class A1) and 767 sqms of office floorspace (Use Class B1), disabled parking spaces and roof top landscaped amenity areas'. Proposed changes incorporate: - Alterations to internal floor plan layouts and core layouts. - Realignment of window and door positions to correct inaccuracies with plans. - Removal of brick pillars to balconies and provision of opaque glass balconies. - Increase in height of building by 150mm to accommodate lift overrun. - Increase in A1 floorspace from 643.2sqm to 721.9sqm. - Reduction in B1 floorspace from 670.3 to 645.64sqm. - Alteration to building line/arrangement at Ufford Street/Boundary Row junction." The non-material amendment comprises the extension of the existing plant enclosure located on the seventh floor of Block B to accommodate an additional condenser unit to support the operation of the commercial uses.

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.