Variation of conditions 1, 31 and 35 of planning permission dated 4 March 2020 (RN 19/06767/FULL) (amended by 20/05397/NMA) which permitted the following development : Demolition of the existing buildings at 19-35 Baker Street, 88-110 George Street, 69-71 Blandford Street and redevelopment to create a mixed use scheme providing commercial uses and up to 51 residential units within a new ground plus nine storey building (and an enclosed plant area) on Baker Street; a new stepped ground plus four to ground plus six storey building on George Street; refurbishment, extension and the change of use of the first floor from office to residential at 30 Gloucester Place; creation of a single storey basement level linking the Baker Street and George Street buildings to provide car and cycle parking, refuse and servicing; creation of a new central, publicly accessible courtyard; removal of 5 trees and replacement trees across the site, a new publicly accessible route at ground level connecting Baker Street and Gloucester Place; associated plant, landscaping, replacement pavements in part and other associated works NAMELY, to allow alterations including alterations at ground floor level and at 10th floor roof level including a new roof top room, roof terrace and alterations to plant enclosure at 19-35 Baker Street, new risers at 3rd floor to roof level at 30 Gloucester Place, introduction of increased flexibility to the commercial units across the ground floor and to remove the existing tree situated directly to the front of the newly approved entrance and replace it with a new tree to the south-west corner of Gloucester Place.

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.

Non-material amendment to planning permission 20/AP/0779 [Approval date: 08.07.2020] for 'Refurbishment and extension of the All Saints Annexe, with all internal floorspace to be mixed Class B1/D1 (office/museum) use, involving the demolition of existing rear extensions and the construction of new two-storey rear extensions. The development would include hard and soft landscaping improvements, the provision of rooftop plant and the creation of an associated waste storage area' comprising: - Reduction in the number of rooflights on the hub roof; - Changes to the planting beds and hand rails around the perimeter of the two rear sunken terraces; - Provision of a new planting bed around the base of two proposed trees within the rear yard; - Enlargement of a consented planting bed around the base of two existing trees within the rear yard; - Changes to the layout of the chiller screening; - Addition of render to the 'plinth' on all elevations; - Addition of one air brick on the east (front) elevation; - Relocation of some air bricks on the west (rear) elevation; and - Alterations to the consented internal layout.

Discharge of Conditions 3 (Testing and Validation of Imported Materials) and 6 (Tree Planting and Biodiversity Enhancement Measures) of Planning Permission reference DC/072506 for Elevational alterations to Dolphin House, including works to create a brick and glazed entrance area, insertion of doors, installation of externally mounted metal escape stair, new access ramp, new ballustrading to existing access ramp, siting of sprinkler tank and pump house upon area of car park, installation of roof mounted plant, including a 130 square metre plant area, hard surface landscaping, segregated recycling and waste management area, erection of boundary treatments, and associated works, in association with the use of the building for Use Class B1 offices, research and development, processes and ancillary functions.

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.