Variation of Condition 1 of planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to amend the approved drawings to replace a single ground floor level window on the north elevation with a door and to erect of a bridge over the existing lightwell to provide a secondary fire-protected egress point.

Erection of two storey roof extension and alterations throughout to provide additional office (Class E) floorspace, refurbishment and alterations to existing elevations including replacement windows and associated works including the relocation of the entrance at ground floor level. Installation of roof plant, enclosure and lift overrun, provision of terraces at fifth and sixth floor levels, terrace at roof level and all associated and ancillary works.

Installation of 4x air source heat pumps at roof level, single-story extension to the existing rear ground floor to extend existing office use, erection of small closet extension to accommodate WCs at rear mid-ground/first and mid-first/second floors, replacement of non-original windows with double glazed timber sash windows, external repairs to building and associated works, all in association with continued office (Class E) use.

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).

Demolition of existing lift motor room and chimney stack at main roof level. Erection of an extension at fifth floor level to facilitate the installation of a replacement and extended lift and erection of an extension within rear lightwell at basement and ground floor level to provide additional office accommodation (Class E). Installation of plant within an enclosure at main roof level. Installation of a single window in place of two windows at rear ground floor level. Infill of roof light at main roof level. Removal of rear fire escape stairs.

Erection single storey extension within rear lightwell at basement level to provide additional office accommodation (Class E) with courtyard above. Alterations at rear fourth floor to create a terrace. Infill of rear windows at basement level and roof light at main roof level. Replacement of existing doors/windows from ground to fifth floor level (roof enclosure) and removal of rear fire escape stairs.

Variation of Condition 1 of planning permission dated 5th November 2021 (RN: 20/07701/FULL) for, 'Demolition of the existing fourth floor roof structures and erection of two storey roof extension to create new fourth and fifth floor level (including plant and roof terraces); all to enlarge office building (Class E). Alterations to front (western facade), installation of new windows throughout and associated alterations'; Namely, to make the following amendments to the approved development - internalisation of stair and associated adjustments to roof layout. (Application under Section 73 of the Act).

Variation of condition 1, removal of condition 38 and details pursuant to conditions 23 and 34 of planning permission dated 20 February 2017 (RN:16/10919/FULL) which itself varied condition 1 of planning permission dated 15 August 2016 (RN:15/11234/FULL) for substantial demolition of existing buildings and redevelopment of the site to provide a mixed-use scheme accommodating a new building comprising basements, ground floor and part eight upper storeys plus rooftop plant with frontages to Charing Cross Road and Manette Street; refurbishment of buildings on Greek Street; in connection with use of the buildings for offices, retail, restaurants, art gallery/art education use, nightclub and eight residential dwellings; provision within basements of plant equipment, waste rooms and cycle parking; new public realm and pedestrian route through the site from Manette Street to Greek Street; and associated external works. Namely, changes to internal layout of building with frontages to Charing Cross Road and Manette Street with use of part basement level 2 as back of house space, relocation of building maintenance unit to ninth floor, erection of steel deck within plant structure at roof level and changes to terrace areas and massing of building; alterations to rear of building, roof form and layout of residential accommodation and installation of plant machinery at 12-13 Greek Street; alterations to the link building; changes to windows on rear façade and increase in parapet height by 700mm at 14 Greek Street; Installation of second gate to ground level passageway; omission of requirement for obscure glass on south elevation; and provision of details of a scheme of public art and gates to the pedestrian route.

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.