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

Construction of part single, part two storey rear extension, hip-to-gable roof extension and alterations including insertion of 1 x dormer window to rear to facilitate conversion of loft to habitable accommodation, 1.8m high close boarded fencing, bin/cycle storage, creation of 2 x car parking spaces and 2 x electrical charging points and alterations to existing access to construct new vehicular crossover all in connection with conversion of existing residential dwelling to create 1 x 1-bed flat and 1 x 2-bed flat (2 flats in total)