Amendments to planning permission dated 9 July 2019 (RN: 18/10493/FULL) for, 'Erection of a single storey roof extension to the Oxford Street frontage and a single storey roof extension to the Duke Street frontage, recladding of all the facades on Oxford Street, Duke Street and Bird Street, in connection with reconfigured retail floorspace (Class A1) over basement, ground and first floor levels, office floorspace at second to seventh floor levels. Increase in height of the existing plant rooms, creation of a terrace at fifth floor level (on Duke Street), installation of new plant and associated works'; NAMELY to provide a setback match the existing Bird Street parapet profile, with the stairwell window (now to be setback at 6th floor level) enlarged slightly and the roof level generator relocated internally at basement level, an increase to the width the stone pier on Bird Street with associated reductions in the size of the windows at ground and first floor levels and two additional shopfronts with recessed entrances, dormer windows to be installed at the rear of the Oxford Street and Duke Street elevations, and pitched roofs to be clad with standing seam zinc.

Amendments to planning permission dated 21 August 2018 (RN: 18/03927) for the: Use of part 1st floor as restaurant/hot food takeaway (Class A3/A5) in connection with the existing ground floor Class A3/A5 unit; partial demolition of rear ground floor structure (facing Great Scotland Yard ) and erection of four storey rear extension over ground, 1st to 3rd floors (fronting Great Scotland Yard) for use as restaurant/hot food takeaway (Class A3 /A5) purposes at 1st floor and offices (Class B1(a)) at 2nd and 3rd floors; and alterations at roof level with enlargement of mansard roof slope, erection of roof top stair enclosure and alterations to roof top plant and equipment. NAMELY, to allow the use of part of first floor of consented rear extension as offices instead of restaurant; amended window and louvre design on the rear elevation at first floor level; provision of an acoustic louvre over part of the consented screened rooftop plant area; minor raising of window levels at second floor on Great Scotland Yard (unnamed service road) elevation.

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.

Amendments to planning permission dated 26 May 2020 (RN: 19/01472) for: 'Excavation to create a deeper basement level and excavation under Wells Mews, demolition of 58-60 Berners Street and demolition behind retained facade of 14-17 Wells Street and erection of a new mixed use development within two adjoining buildings comprising lower ground, ground plus 5 storeys fronting Wells Street and lower ground, ground plus 7 storeys fronting Berners Street to accommodate flexible retail (Class A1) or financial and professional services (Class A2) or restaurant (Class A3) purposes on part lower ground and part ground floors, office (Class B1) on upper floors and installation of plant behind screening on both roof levels. The scheme also includes external alterations to 14 and 15 Eastcastle Street (part of Woolverstone House) to accommodate a wider and improved entrance into Wells Mews from Eastcastle Street, an upgraded residential entrance to 1 Wells Mews'; NAMELY, changes to the internal layout at lower ground and ground floor levels, removal of bridge and entrance doors to Berners Street retail unit, reduced depth beneath pavement on west side of Wells Mews to accommodate smoke vents, alterations to fenestration, retained roller shutter instead of new louvred access door to Wells Mews, extensions to railings around roof level plant, altered layout of roof level plat and associated alterations.

Amendments to planning permission dated 12 February 2020 (RN: 19/10030/FULL) for the: Use of the basement as offices (Class B1), erection of single storey extension at rear third floor level, installation of air-conditioning units within vaults at lower ground floor level and extractor fan at roof level and associated works of internal and external alterations to 1 Chesterfield Street and 16A Curzon Street. NAMELY, to allow rationalisation of fabric removal; internal layout arrangements; infilling of unstable vault openings; replacement of an existing door with a new sash window to the lower ground floor lightwell; introduction of full height maintenance access openings at lower ground floor level on the Chesterfield Street elevation; rationalisation of external services; introduction of service trenches to lightwell floors; removal of window horns; and introduction of ventilation grilles to the elevation at lower ground floor level. (Linked to 20/04640/LBC)

Amendments to planning permission 15 November 2018 (RN: 18/03869/FULL) for Variation of Conditions 1, 3, 4, 6, 8, 9, 12, 17 and 30 of planning permission dated 22 February 2018 (RN: 16/12289/FULL) for: Demolition of existing buildings to the centre and eastern end of the site and redevelopment comprising erection of buildings of between six and 20 storeys in height to provide 335 residential units (Class C3), a hotel and serviced apartments (Class C1), offices (Class B1), gym (Class D2), retail (Class A1/A3) and a primary school (Class D1) with associated landscaping and open space, highways works, off street ground floor service bay and two storey basement to provide car, cycle and motorcycle parking and ancillary servicing space. NAMELY for the following changes ; 1, the replacement of one external window with a louvre on the on the south elevation, 2, amendments to the spandrel panels and glazing above the service yard entrance on the north elevation, 3, the replacement of glazing with spandrel panels on east elevation, 4, the introduction of louvred grills on the west elevation, alongside the variation of Condition 1: Approved Drawings.

Amendments to planning permission dated 8 October 2019 (RN: 19/06149) for: External alterations to the St James's Square and Pall Mall facades, including alterations to windows and entrances, new entrance from Pall Mall and cleaning of brickwork; erection of roof extension to incorporate lift overrun, roof access, concealed open plant area and new plant; and dual/alternative use of part of the ground and basement levels as either office (Class B1) or retail (Class A1); and associated works. Namely, amendments to entrances and doors on the St James's Square and Pall Mall elevations; changes to the lower ground floor layout; alteration to the level 5 facade (to Pall Mall) moving 50mm south towards Pall Mall; alteration to the construction of the mansard roof moving 240mm south toward Pall Mall; the introduction of a short boundary wall to St James's Square; changes to the design of the railings; amendments to the quantum and height of the stall risers, amendments to the stone bands on the facade; and variation to the wording of conditions 12 and 13 requiring the works to be carried out in accordance with the detailed drawings of the new windows, doors and eastern party wall upstand.

Amendments to planning permission dated 19 March 2019 (RN: 18/09283) for: Redevelopment behind retained and refurbished facades, demolition and reconstruction of the interior of the building, alterations to shop fronts and reconstruction of the existing mansard and erection of a new sixth floor level plus rooftop plant room, in connection with the use of the basement, ground and first floor levels for retail purposes (Class A1) and offices (Class B1) on upper levels above; NAMELY, to enable changes to west elevation windows, retention of existing windows, alterations to rooftop plant screen, eastern elevation mansard, and the addition of retail signage, pavement smoke vents and office signage.

Amendments to planning permission dated 28 March 2017 (RN: 16/12196/FULL) for the: Erection of mansard roof extensions across all three buildings and excavation of sub-basement level and associated internal and external works in connection with an office use (Class B1). Installation of plant within acoustic enclosure at rear first floor level - NAMELY, to allow the replacement of cladding within the windows and door cills areas with brickwork.