Amendments to planning permission dated 14th July 2022 (RN: 21/08289/FULL) for, 'Alterations to Grosvenor Square Gardens, including redesign of the gardens, comprising of hard and soft landscaping improvements, works to trees (including tree removal and new planting), with new and realigned paths, paving and rills, new perimeter railings, new western entrance, new lighting and planting, the introduction of a shaded garden and wetlands, installation of plinths for the display of sculptures/artworks, informal play areas, the construction of buildings (gardeners hut, public WCs and educational building with catering facilities (sui generis)), external gardeners store, photo voltaic panels, structures, and associated works'; NAMELY, to amend the wording of the description of development of the planning permission, to remove reference to the rills.

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 1 September 2014 (RN: 14/02566/FULL) for: Variation of Condition 1 of planning permission dated 04.09.13 (RN: 12/12041) for external alterations and extensions including rebuilding of existing 7th and 8th floor levels, installation of photo-voltaic cells, green roof & plant at roof level, alterations to street facades and rebuilding of rear facades (with new balconies on Smith Court and Piccadilly Theatre frontages, and roof terraces at eight floor level on all frontages), provision of 38 dwellings at 4th-8th floors, with new residential entrance to Sherwood Street, use of second and third floor as offices (Class B1), reconfiguration of existing uses at basement, ground and first floor levels at 12/13 Sherwood Street and 63-75 Brewer Street to provide 2 No. retail (Class A1) units and altered health club (Class D2) layout with new health club entrance on Brewer Street - to allow minor amendments to the approved scheme including: changes to the steel window design on the street facing facades; alterations to the aluminium window design on the rear facades; installation of ventilation grilles in the windows at 3rd-7th floor levels on the Sherwood Street and Brewer Street elevations; alterations to the flank/party wall on Brewer Street; changes to the roof layout and massing; AND removal of Condition 3(2) (requiring detailed drawings of new windows): NAMELY, to amend energy and sustainability strategies to facilitate the removal of a trigeneration system forming part of the central plant within The Crown Estate's Quadrant development and amend the wording of condition 20 accordingly.

Amendments to planning permission dated 3 January 2013 (RN: 12/09708/FULL) for external alterations including rebuilding of existing sixth and seventh floor levels, alterations to Regent Street, Air Street and Glasshouse Street elevations. Infill extensions to rear lightwell and internal alterations at all levels in association with the reconfiguration of existing (Class A3) restaurant at part basement, ground and first floor levels and (Class B1) office at part basement, ground, first, mezzanine and second to seventh floor levels. Creation of a terrace, installation of PV cells, a green roof and plant with associated screening at main roof level with additional plant at seventh floor level. (Site includes 7-9 Air Street and 14-18 Quadrant Arcade): NAMELY to amend energy and sustainability strategies to facilitate the removal of a trigeneration system forming part of the central plant within The Crown Estate's Quadrant development and amend the wording of condition 14 accordingly.