Alterations to existing residential unit including construction of a new fourth floor mansard with dormer windows to front and rear, plus rooflight. Modifications to third floor front and rear facades and fenestration, including installation of double-glazed timber framed sash windows.

Construction of mansard roof extension with rear terrace to rear closet wing and dormer extension to side of existing roof extension to provide additional residential accommodation. Alterations to existing rear dormer.

Creation of a new residential unit (Class C3) at basement floor, creation of new windows and doors to the lightwell areas, extention of the rear part of the basement. Convertion of the existing class B1 use extension at upper ground floor into an independent residence (Class C3), construction of a covered passageway across from the main property to the existing rear extension, introduction of a new a dormer with windows facing the rear garden, and a dormer window facing South, installation of 3 cycle hoops into front demised area of the site and reinstatement of window to ground floor office space at rear.