Part two, part single storey rear extensions and associated external alterations following the demolition of existing extensions and outbuildings to the rear to facilitate the conversion of the existing dwelling to form one two bedroom dwelling (no.22), and one four bedroom dwelling (no.24). Demolition of existing low level wall to front boundary and formation of a pedestrian access way and new front door to create access to no.22 from High Street. Associated hard and soft landscaping to provide car parking and residential gardens to serve the proposed development.

Development to provide a total of 326 self-contained residential units comprising; phased construction of seven blocks of flats (ranging from two to six-storeys); two two-storey detached dwellinghouses (following demolition of existing gatehouse); and a terrace of two-storey dwellinghouses in the grounds of Twyford Abbey (all Use Class C3); conversion of Twyford Abbey (Grade II Listed) into flats (Use Class C3) and provision of residents lounge; demolition of workshop attached to the Grade II listed walled garden and replacement with a single storey dwellinghouse (Use Class C3); facilitated by repair; refurbishment; infill and rooftop extensions; demolition of post-war extensions and other pre-war structures within grounds, excluding the cottage; retention and repair of the Grade II listed walled garden and attached cottage to provide ancillary facilities management accommodation and residents facilities; comprehensive landscaping works including removal and works to trees and groups of trees protected by a Tree Preservation Order; provision of permissive publicly accessible open space and grow gardens; provision of gated cycle and pedestrian access onto North Circular (A406) and new access onto Twyford Abbey Road; provision of hardstanding parking areas; ecological enhancement works; and other associated constructions works including installation of boundary treatment

Demolition of first floor rear addition, erection of two storey rear extension and mansard roof extension to provide 3no. residential units, provision of refuse and cycle storage, alterations to boundary wall and associated development.