Alterations in connection with conversion of an existing room at Basement 1 Level to create archive facility comprising of a reading room, office and environmentally controlled store.

Demolition of a 2-storey rear wing, the erection of a single storey rear extension, the erection of a mansard roof extension, external alterations to the front and rear elevations, conversion of part of the betting office on ground and basement floor levels and renovation of a disused residential area at basement level to create 4 self-contained flats (use class C3) and retention of part of betting office (use class sui generis).

Works at 89 Boundary Road to include use of part lower ground and part ground floors as a residential flat (Class C3) and office (Class E), and first, second and third floor as 2 residential flats (Class C3); Erection of rear extensions at lower ground and ground floor levels with associated terrace at first floor level; Erection of mansard roof extension, alterations to windows and doors; and works to 87 Boundary Road to include demolition of existing rear extension and erection of mews house at rear of site, reduced office space; erection of a mansard roof; Conversion of maisonette at first and second floor into two flats with additional accommodation at roof level; and use of the lower ground and ground floor as office (Class E).

Alterations to provide inclusive access to the building, comprising installation of a platform lift to the main entrance. Creation of a terrace at roof level (to rear of building) and level access to the terrace. Alterations to the rear and mews facade; and alterations at lower ground floor associated with the conversion of the car park to office floorspace.

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.

Variation of condition 1 of planning permission dated 15 October 2019 (RN:19/03375/FULL) for the: Alterations to Great Titchfield Street and Winsley Street, in connection with the relocation of a car parking entrance from Great Titchfield Street to Winsley Street and a retail (Class A1) unit from Winsley Street to Great Tichfield Street creation of an enlarged office entrance on Great Titchfield Street conversion of basement car parking to retail (Class A1) provision of basement cycle parking. NAMELY, to allow alterations to the detailed design of the shopfronts and the residential and office entrances on Great Titchfield Street and Winsley Street including replacement of dark bronze anodised aluminium façade panelling, window frames, doors, louvres, fire panel, entrance hall with dark burnished; bronze/bronze effect panelling; new mirror polished stainless steel residential entrance door and security side panel; replacement of back-lit UK House signage with dark burnished brass/bronze effect finish mounted on curtain wall transom; and additional louvre to Winsley Street facade. (S73 application)

Installation of mechanical plant and associated alterations at roof level. Internal alterations in connection with the refurbishment of the building including the conversion of the existing below pavement vaults to provide additional office floorspace and alterations to the lift core.

Demolition of existing rear extension and erection of mews house at rear of site reduced office space; conversion of maisonette at first and second floor into two flats; Use of the lower ground and ground floor as office (Class E)

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)

Removal of condition 12 of planning permission dated 01 May 2020 (RN: 20/01459) which itself varied condition 1 of planning permission dated 12 February 2013 (RN: 12/12483)for the: internal and external alterations (comprising new windows at roof level, lift overrun green roof skylight, removal of lightwell insertion of new doors at lower ground floor level and creation of roof terrace at rear ground floor level) in connection with the conversion of the existing building from office and residential flats into a single family dwelling to vary the approved drawing numbers to allow the introduction of an additional roof light to the north east of the roof, a replacement walk on roof light to the west of the roof and an extension to the lift overrun box, set into the existing area of flat roof and plant access. NAMELY, to remove biodiversity management plan as green roof no longer forms part of the proposal.