Demolition of the existing single storey garage in the rear garden and erection of a replacement two storey plus-basement single family dwellinghouse; alterations to the main building at no. 12 Ongar Road to include: erection of a single storey rear extension, to the side and rear of the existing back addition at basement level; erection of an external staircase from basement to ground floor level at the rear of the property; infilling of 1no window at the side of rear back additions at ground and first floor level (northern elevation); installation of a new window to replace the existing window to the side of rear back addition, and replacement of existing doors with a new window to the rear of proposed bedroom 5 at basement level; replacement of selected windows with new double glazed windows, and relocation of 2no windows to southern and eastern elevation of the main building at no. 12 Ongar Road; formation of a cycle and refuse store with an air source heat pump attached to the store; erection of boundary wall and gates to Sedlescombe Road elevation.

Demolition of existing first floor rear back addition and erection of a replacement full width rear extension at first floor level, on top of the existing back addition; erection of a single storey rear extension at lower ground floor level; excavation under the footprint of the whole building and underneath the rear garden to form a sub-basement level; alterations to the main roof to include the installation of a new rooflight and loft decking in connection with the formation of a roof terrace; alterations to the roof of first floor rear back addition to include increasing the height and installation of solar panels; installation of French doors to replace the existing window at ground floor level to the rear elevation; installation of new windows at ground and first floor level to the side elevation; erection of an external staircase from sub-basement to garden level at the rear of the property (access to the rear garage); demolition of the existing garage in the rear garden and erection of a replacement part one, part two storey plus-basement annexe building to provide habitable accommodation ancillary to the main dwellinghouse; installation of a new door to side boundary wall fronting Astrop Terrace elevation.

Conversion of existing garage into home office use ancillary to the main dwellinghouse; excavation under the footprint of the garage to form a new basement; erection of a single storey rear extension to existing garage; replacement of existing doors with new doors and windows to the front elevation, and installation of a new window and door to replace the existing windows and door to the side elevation of existing garage; alterations to the roof of the garage to include the installation of new rooflight in the eastern and southern elevation roofslopes; installation of new windows to the western elevation of the garage.