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)

Change of use of part of the ground floor from retail shop (Use Class A1) into a large HMO (Class Sui Generis), excavation of a new basement including the formation of a new lightwell in connection with the conversion of part of the ground floor to use as a large HMO to accommodate up to 10 residents; change of use of the first and second floor level from dental surgery (Class D1) into residential (Class C3), partial demolition of the existing building and erection of rear extensions at ground, first and second floor level in connection with the creation of 7 self-contained flats (1 x studio, 5 x 1 bedroom and 1 x 3 bedroom flat) over first and second floor level; alterations to external facades to include the installation of new windows and door openings; alterations to the shopfront; erection of new boundary walls; formation of roof terrace at second floor level; provision of new cycle and bin stores.

Change of use and conversion from retail (use class A1) and residential (use class C3) to retail and 3No one bed self-contained flats and 1No studio apartment together with the erection of a 4 storey rear extension, insertion of dormers to rear and rooflights to front roof slope, excavation to rear to allow for creation of steps to basement with alterations to fenestration and rear entrance at basement level