Amendments to planning permission dated 21 April 2020 (RN: 19/07998/FULL) for 'Demolition of existing building and erection of an eight-storey building over basement providing six residential flats (Class C3 Use) on the upper floors and a retail unit (Class A1 Use) at ground and basement levels including associated plant at basement, ground and sixth floor levels, roof terraces at sixth and seventh floor levels and PV panels at roof level'. NAMELY, to amend the description of development to read 'Demolition of the existing building and erection of a new building providing a retail unit (Class A1 Use) and six residential flats (Class C3 Use), including associated plant equipment, roof terraces at sixth and seventh floor levels and PV panels at roof level'.

Variation of Condition 1 of planning permission dated 19th April 2023 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY to install additional plant at rear first floor level and amend the approved enclosure, decorative cladding and green wall. (Application under Section 73 of the Act).

Variation of condition 1 of planning permission dated 19th March 2019 (RN: 18/07737/FULL) for 'Alterations to all elevations of the property to include the installation of balconies and extended windows to create doors; installation of plant at main roof level and lower ground floor level; use of lower ground floor as 6 residential flats (Class C3) and reconfiguration of the existing residential units on the upper floors of the property; extension at lower ground floor level within the existing lightwell and at all floor levels on the Hay's Mews elevation; alterations at main roof level including the creation of an internal residential amenity space' (SITE INCLUDES 27A HAY'S MEWS), NAMELY, to amend the drawings to remove of a number of balconies at all floor levels; relocation of the residential cycle parking; alterations to the layouts of residential units at ground and lower ground floor levels; new windows at ground and lower ground floor levels and use of render instead of the approved Portland Stone. (Application under Section 73)

Variation of condition 1 of planning permission dated 14 May 2021 (RN 20/01550/FULL) for excavation of a basement beneath the footprint of the original dwelling. Erection of additional mansard roof storey with dormer windows. Alterations to elevation to provide new windows. Merging the two existing flats into a single dwelling house. NAMELY, to amend and include additional windows and raise roof level.

Variation of condition 1 of planning permission dated 14th February 2019 (RN:18/10787/FULL) for the Erection of single storey roof extension to create new eighth floor and extensions at sixth and seventh floors to allow the enlargement of two residential flats (Class C3), alterations to shopfronts facing Park Lane and associated external alterations. Namely, to infill part of the terrace at eighth floor level to provide additional residential floorspace, additional glazing at eighth floor level, to amend the window configuration at the 6th and 7th floor level, and the new extension at 8th floor level, glazing to be reduced on the west elevation, extensions and associated guardings on the north and south elevations, raise the rear central projection by 300mm, central space to be moved back to align with the seventh floor at roof level.

Amendment to planning permission dated 02nd December 2016 (RN: 16/03476/FULL) for the Variation of Condition 24 of planning permission dated 22 March 2016 (RN: 15/02440) for erection of a new residential building comprising basement, lower ground, upper ground and four upper floors to provide 8 x self-contained flats, including basement car parking. Installation of mechanical plant and solar photovoltaic panels at roof level. Namely, amendments to move the internal refuse store from the lower ground floor to the basement floor; and provision of a temporary holding facility for bins with access from Grosvenor Road on the lower ground floor.

Variation of condition 1 of planning permission dated 13 September 2021 (RN: 21/04494/FULL) for the: Refurbishment of existing duplex apartment, and replacement of existing infill rear extension with roof terrace above. Namely, to omit rooflight to proposed infill extension and amend garden landscape level; . (Linked with 21/08306/LBC)

Amendment to planning permission dated 20 June 2016 (RN:15/10444/FULL) for the variation of Condition 1 of planning permission dated 8 December 2011 (RN:10/01741/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, variation of Condition 17 with substitution of a revised Energy Strategy.

Amendments to permission dated 28 July 2021 (RN: 20/05512/FULL) (which varied permissions dated 1 May 2019 RN: 18/09619/FULL, 1 February 2019 RN:18/00506/FULL and 29 April 2016 RN: 15/11404/FULL) for variation of conditions 1, 14 and 17 of permission dated 1 May 2019 (RN: 18/09619/FULL) (which varied permissions dated 1 February 2019 RN:18/00506/FULL and 29 April 2016 RN: 15/11404/FULL) for 'Demolition and redevelopment of the site to provide a residential complex comprising 39 units of self-contained assisted living accommodation integrated with facilities including communal kitchen-cafe, storage areas, wellness centre/spa, guest accommodation, staff accommodation, staff offices, in two linked buildings of six storeys each, internal courtyard, roof terrace, excavation to create basement storage and 38 car parking spaces with access from Horseferry Road. Namely, to allow amendments including removal of car parking stacking system, revised new basement floor layout, reduction in car parking spaces to 26, and provision of 5 electric charging points'. NAMELY, to amend the description of development to read as follows: 'Demolition and redevelopment of the site to provide a residential complex comprising 39 units of apartments integrated with facilities including communal kitchen cafe, storage areas, wellness centre/spa, staff accommodation, staff offices, in two linked buildings of six storeys each, internal courtyard, roof terrace, excavation to create basement storage and car parking spaces with access from Horseferry Road'.

Certificate of lawful proposed use to confirm that the following planning permission dated 28.04.2020 (RN: 19/08283/FULL) can be implemented on or before 28.04.2023. Variation of condition 1 (approved drawings and reports) of planning permission (RN: 17/11306/FULL) for the Extensions to the existing building at roof, ground and lower ground level in connection with the provision of 961sqm (GEA) Class D1 floorspace and 9 residential flats (Class C3), together with associated parking), NAMELY, to make design changes and amend the energy strategy to allow from a change from ASHP to gas-fired boilers.