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).

Conversion of the existing below pavement vaults to provide an ancillary space for flat A, alongside installation of a new window to front lightwell at lower ground level. (Linked with 23/03880/LBC)

Alterations to Grade II listed building including rear extension, replacement rear windows, new terrace balustrade and new staircase to the rear, minor internal modifications, levelling up of existing forecourt; conversion of garage to utility/ guest room with associated alterations including the replacement of the existing roof with flat roof behind existing parapet; handrail to entrance steps at the front; and alterations to provide power to existing gates (Linked with 22/03481/LBC) [REVISED DESCRIPTION]

Conversion of the existing below pavement vaults, including new windows and doors to front lightwell to provide annexed residential accommodation to flat A, new window to the front elevation, single storey rear and side infill extension. (Linked with 23/02716/LBC)

Conversion of the existing basement to form a self-contained one-bedroom dwelling; provision of front light-well with associated metal railings, external staircase and new door and windows at basement level, replacement shopfront; lowering of the floor of the vaults by approximately 1m to facilitate the conversion of the basement; and continued use of ground floor unit for Class E use.

Erection of two storey rear infill extension at lower ground and ground floor levels; changes to fenestration and associated landscaping; lowering of existing front vaults and conversion into habitable space; and associated works.

Erection of a single storey rear extension; erection of an extension within front lightwell, underneath front footpath, in connection with the conversion of a front vault into a bathroom; installation of replacement external staircase within the front lightwell; and replacement of front window with new double glazed window.

Loft conversion, new conservation rooflights, alterations to the existing roof ridge, use of rear terrace at first floor level and replacement of existing sash windows with double glazed sash windows.

Creation of a roof terrace at third floor level with installation of associated alterations to parapet and railing, and conversion of window into a door.

Lowering of floor level within vaults and conversion to habitable accommodation. Alterations to windows and doors. Erection of extension of rear infill to courtyard. (Linked with 22/08370/LBC)