Variation of Condition 1 of planning permission dated 22nd January 2020 (RN: 19/06551/FULL) for, 'Infilling of internal light wells at fourth to seventh floor levels to create additional office space (Class B1) together with extension at roof level to provide a new eighth floor level comprising four residential units with part mezzanine (Class C3), the recladding of light well walls with minor internal alterations, new residential entrance, and plant in an enclosure at roof level; NAMELY, to make the following amendments to the approved development - mansard structure constructed in steel rather than concrete; existing staircases enlarged to accommodate fire access and escape; internal reconfigurations to the 7th floor; changes to the approved lift overrun and stair core; internal re-configuration of the apartments; reconfiguration of green roofs; addition of green walls to terraces and alterations to fenestration. (Application under Section 73 of the Act).

Variation of Conditions 2 (approved drawings) and 7 (windows) to allow minor material amendments to planning permission reference: 2018/01866/FUL dated 10th August 2018 for the "Change of use of ground floor and basement from a betting shop (Class Sui Generis) to residential use (Class C3) with ancillary basement storage area; erection of a rear roof extension; excavation of part of the rear garden to form lightwells, in connection with the enlargement of the existing basement; alterations to existing shopfront to No.190 and No.192; erection of a part one, part two storey extension at ground and first floor levels to 190 Dawes Road; conversion of both properties into a 7no. unit residential development, consisting of 4no. one bedroom flats and 3no. two bedroom flats, with common access and associated refuse and cycle storage." Amendments sought are alterations to the approved rear brick facade of the back addition extensions to be replaced with a white painted, silicone render system; and alterations to the approved timber windows replaced with double glazed, uPVC 'Rehau' heritage style windows.

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.

Variation of condition 1 of planning permission dated 3 March 2020 (RN 19/09981/LBC) for the Variation of condition 1 of listed building consent dated 20 February 2016 (RN: 15/10446/LBC) for the: Development of 55-59 Knightsbridge (including retention of Knightsbridge facades, demolition and the dismantling and reinstatement of roofs and chimneys) to provide retail (Class A1) at basement and ground floor levels and 18 residential flats at first, part second floor and third to fifth floor levels. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Namely, to allow alterations to William Street Residential Entrances, door to Wilton Place, fenestration changes to rear facade, increased lift Shaft to rear face of William Street, merlons to west elevation, West façade end bay reconstructed, chimneys to coping stone detail in mansard, pavilion gable apex roof stones, ridge height of mansard roofs, projecting signs to shopfronts, retained parapet to no. 55 Wilton Place, general layout alterations, and associated works from RN 19/09981/LBC, NAMELY, to vary the approved drawing numbers to amend the design of the external vent at no. 4 William Street and the removal of a ceiling at third floor level.

Variation of conditions 36, 37 and 38 (parking permits) of planning permission Ref: 2016/02250/VAR dated 5th October 2016, which in turn was to vary planning permission Ref. 2015/02007/VAR dated 30th July 2015 which allowed amendments to conditions so that parking permit restrictions only apply to Units 2, 3, 4 and 5 of the original development as approved under Ref. 2013/03692/FUL, for "Provision of 9 residential units and 211sqm of B1a office floorspace by the erection of a part 4 and part 5 storey building following the demolition of 67 Jeddo Road (with the exception of the ground floor façade), the retention and conversion of 69 Jeddo Road with external alterations including the replacement of all existing windows with new timber sash windows, and a new timber door to front elevation and timber gates to the existing archway entrance; provision of metal railings at the back of pavement and the erection of a full width mansard roof extension with two dormers to rear elevation, the erection of two, 3-bedroom semi-detached mews houses, following demolition of a single storey outbuilding to the rear)." Proposed amendments are to allow the occupiers of Unit 3 to apply for street parking permits.

Amendments to planning permission dated 23 March 2018 (RN: 17/08716/FULL) for Variation of condition 1 and removal of condition 33 and 34 of planning permission dated 20 April 2016 (RN: 15/06448) for the 'Demolition of all existing buildings and comprehensive redevelopment to provide a mixed use development accommodated in a single building arranged around a central courtyard of lower ground, ground, eight upper floors, rooftop plant and basements. Use of new building for hotel comprising up to 190 guest rooms, restaurants/bars, ballroom, function rooms, hotel leisure/spa facilities, ancillary and back of house spaces (Class C1), 24-28 residential dwellings including ancillary residential leisure and amenity facilities (Class C3) and retail (Class A1), car and cycle parking with access from Grosvenor Crescent and Halkin Street, refuse, delivery and circulation spaces within basements and other associated works. (Site includes Yorkshire House, Grosvenor Crescent, 3, 4, 5 and 8 Pembroke Close and 12 Halkin Street London SW1)'. NAMELY, to amend the approved drawing numbers to allow design changes to all building facades and internal alterations to the design of the building, installation of a Building Maintenance Unit at roof level and alterations to the roof parapet line, NAMELY, to make changes to the south-west building elevation facing Forbes House, specifically in relation to the approved windows and their layout on the southern part of the site and to add an additional condition (38) to the planning permisison: "You must carry out the development in accordance with the approved Design Amendment Statement Ref: 1GP-HAP-XX-XX-RP-AR-0096 insofar as it relates to the approved windows and their layout on the southern part of the elevation and maintain it in accordance with this Design Amendment Statement in perpetuity thereafter."

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.