Variation of condition 1 of planning permission dated 29 March 2021 (RN: 20/08169/FULL) for the: Erection of mansard roof extension and conversion of the existing upper floors of the building into 3 self-contained residential units (Use Class C3). Replacement of glazed doors at first floor level on rear elevation. Namely, to allow internal alterations at first, second and third floor level to locate living room at front and bedroom at the rear.

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 19 April 2021 (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 allow removal and replacement of existing central core and floors (retrospective), minor changes to internal configuration, provision of new entrance gates to permitted railing enclosure at the front, new door height gates to central entrance and new timber painted frames to glazed entrance. (Application under Section 73 of the Act).

Variation of condition 1 of planning permission dated 19 April 2021 (RN: 20/04541/FULL) for the: 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 allow removal of central core and floors and associated replacement to improve sustainability, acoustic and fire safety performance; modifications to ancillary uses within basement, including provision of ancillary kitchen and restaurant area serving guests of Bechstein Hall; kitchen extract and ductwork to be localised; introduction of entrance gates to main front entrance; minor amendments to plant at the rear; and provision of open pergola walkway on the roof at the rear.

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)

Variation of Conditions 1 and 3 and removal of Condition 6 of planning permission dated 4 June 2019 (RN: 19/00040/FULL) for the erection of a mansard roof extension and two storey rear extension with terrace on top, replacement of windows fenestration, installation of recessed street-level doorway and new front door, all in connection with the conversion of the existing flat into three residential dwellings. NAMELY, amend the design of door to front elevation, to add waste/recycling storage in the third floor flat, and include details of windows, doors and railings.

Variation of condition 1 and omission of condition 4 of planning permission dated 02 May 2018 (RN: 17/10253/FULL) for the: Installation of new dormer extension and three rooflights to inner roof slopes in association with conversion of loft for additional residential accommodation for flat 8A. NAMELY, to allow replacement of roof dormer with a roof-light to lightwell elevation.

Variation of condition 1 and omission of conditions 4 and 5 of planning permission dated 02 May 2018 (RN: 17/10252/FULL) for the: Raising of roof ridge and installation of new extension to inner roof slope with two dormer windows, and installation of rooflight to inner roof slope in association with conversion of loft to form additional residential accommodation for flat 7A. NAMELY, to allow retention of the original slope of the roof and the replacement of dormers with roof-lights to lightwell elevation.

Amendments to planning permission dated 24 May 2017 (RN: 16/12162/FULL) for: Variation of Condition 1 of the planning permission granted 27 January 2017 (ref: 16/07226/FULL) for a redevelopment to provide buildings of between ground + 6 and ground + 29 storeys including commercial space (Class A1, A2, A3, A4 and B1), up to 672 residential units (including 130 affordable housing units), landscaping and associated car and cycle parking. NAMELY, to allow the conversion of 20x 1-Bed Intermediate units into 20x 1-Bed Social Rent units on levels 1 - 10 within Block B, and conversion of 6 x 1-bed units from social rented to intermediate tenure within blocks E/F.