Amalgamation of 2no dwellinghouses into a single family dwellinghouse; erection of rear extensions at third floor level, on top of the existing back additions; demolition of existing single storey rear extensions and erection of a replacement single storey rear extension including the formation of an enlarged roof terrace above the roof of ground floor rear back addition; excavation of the front garden to form lightwells in connection with the enlargement of the existing basements; replacement of existing dormer windows with new dormer windows comprising of windows and French doors with Juliet balconies in the rear roofslope; installation of 2no rooflights in the front roofslope to no. 6 Dewhurst Road; replacement of existing windows with new windows and replacement of the existing single door with double doors at first floor level to the rear elevation; removal of rear fencing and front wall between no. 6 and 8 Dewhurst Road and installation of replacement refuse and cycle stores; erection of new front boundary wall with railings on top and a pedestrian access gate to no. 8 Dewhurst Road; associated landscaping in the front and rear gardens.

Variation of Condition 2 (approved drawings) to allow minor material amendments to planning permission reference: 2023/00461/FUL granted 21st April 2023 for the 'Erection of a rear extension at second floor level over part of the existing back addition; erection of a single storey rear extension to the side of the existing back addition at upper ground floor level; excavation of the rear garden to form a lightwell, alterations and enlargement of the front lightwell in connection with the enlargement of the existing basement; installation of 3no rooflights above the main flat roof at roof level; replacement of the existing rooflights with new rooflights in the front roofslope; installation of a new window in the rear roofslope; replacement of the existing window with an enlarged window to the rear back addition of first floor level; replacement of existing single glazed windows with new double glazed windows; replacement of existing roof terrace balustrades with new balustrades above the roof of second floor rear back addition; installation of new enlarged sliding doors to replace the existing sliding doors at upper ground floor level to the rear elevation; demolition of the existing lean to extensions at upper ground and first floor level.' Amendments sought are for the roofing material of the approved rear extension at the second floor level over part of the existing back addition to be changed from slates to zinc and for the side elevation of the second floor rear back addition to be changed from sloping roof to vertical.

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.

Change of use of part of ground and basement floor level from retail (Class E) into residential (Class C3); erection of a rear roof extension; erection of a rear extension at second floor level over part of the existing back addition; erection of a single storey rear extension at lower ground floor level to the side of the existing back addition; installation of a new window to replace existing, to the rear elevation at upper ground floor level; installation of a new door to replace the existing window, to the rear elevation at lower ground floor level; erection of bike and bin stores following the demolition of the existing extension, to the rear of rear back addition at lower ground floor level; removal of existing window to the side of rear back addition at upper ground floor level; conversion of third, second, first, upper ground, part of lower ground and basement floor levels to provide 2 x two bedroom and 2 x one bedroom self-contained flats.

Demolition of roof and first floor level to both properties; erection of 3no. additional floors at roof level comprising a front and rear mansard extension, including solar panels on top of the main flat roof, rooflights to the side roofslopes and windows to front and rear elevations to both properties; alterations to openings, repositioning of main front entrance door, replacement of an existing window with a new enlarged window to the front elevation (no.26); installation of a new enlarged rooflight to replace existing on top of the flat roof, replacement of existing bi-folding doors with new enlarged bi-folding doors to the rear elevation of ground floor back addition (no.26).

Erection of a single storey side extension, following the demolition of existing garage outbuilding; bricking up 1no. window to the side elevation at first floor level; installation of a new entrance door with a fanlight above, to the side elevation at ground floor level.

Erection of rear extensions at first, upper ground and lower ground floor levels; erection of a side extension at first floor level to the side of the main building; alterations to the front elevation of the building to include the installation of a bay window at upper ground floor level; demolition of existing shed in the rear garden.

Variation of condition 2 (approved drawings) of the planning permission reference: 2022/00931/FUL dated 6th October 2022 for the 'Erection of a rear roof extension, involving an increase in the ridge height by 300mm; erection of a rear extension at second floor level, over part of the existing back addition; erection of a new single storey rear extension, following the demolition of existing; erection of a single storey rear extension with a glass structure, to the side of existing back addition; installation of 3no. rooflights in the front roofslope; re-sizing and installation of a new window to replace existing, to the side elevation at first floor level; bricking up 1no. window to the rear elevation of first floor back addition; replacement of all existing windows with new double glazed sliding sash windows; excavation of part of the front garden to form a lightwell, in connection with the lowering and enlargement of the existing basement,' to allow an increase in the ridge height by 400mm.

Erection of a rear roof extension, involving an increase in the ridge height by 300mm; erection of a single storey rear extension, to the side and rear of the existing back addition following the demolition of existing single storey lean-to extension; installation of a new enlarged rooflight in the front roofslope, following the removal of existing; removal of part of the pitched roof of first floor back addition in connection with the formation of a roof terrace enclosed in 1.7m high obscure glazed screening; bricking up 1no. window to the rear elevation at first floor level; installation of a new window to the rear elevation at upper ground and first floor level; bricking up 2no. windows, repositioning, re-sizing and replacement of 2no. windows to the side elevation at upper ground and first floor level; installation of new French doors to replace an existing window, to the side elevation within the courtyard at lower ground floor level; conversion of the existing maisonette at upper ground and first floor level into 2no. self-contained flats.

Non-material amendment to planning permission ref: 2017/00362/FUL granted 4th October 2019 for the 'Demolition of existing single storey building fronting Chiswick Mall used for live/work purposes as artists' accommodation and studios and replacement with a new part one/part two storey building with the same use; replacement roof, erection of side dormer and alterations to windows and doors of the existing building fronting the River Thames for continued use for live/work purposes as artists' accommodation and studios; demolition of coal store in courtyard and landscaping of this area; widening and replacement of gates to street frontage; removal of vehicular crossover.' Amendments to include reduction in area of rooflights and alterations to window and door positions on side and river elevation.