Conversion of the existing property into 3no. flats (consisting of 1 x 2 bedroom at lower ground floor level, 1 x 2 bedroom at upper ground floor level, and 1 x 2 bedroom maisonette at first and second floor level); erection of a part one part two storey rear extension at lower ground and upper ground floor level; replacement of all existing windows with new double glazed timber framed windows; erection of a replacement external staircase with new metal railings to the front elevation from ground to lower ground floor level; erection of a bike and a bin store in the front garden at lower ground floor level; erection of glazed privacy screens and metal railings over part of the proposed rear extensions at lower ground and upper ground floor level, in connection with its use as roof terraces; erection of a new external staircase following the removal of existing external staircase, to the rear elevation from upper ground floor level to rear garden; installation of timber framed French doors with fixed window panels following the removal of 2no. existing windows, to the rear elevation at first floor level, to provide access to the proposed roof terrace.

Erection of a rear extension at second floor level, over part of the existing back addition; replacement of window in rear roof extension with French doors and a Juliette balcony; and replacement of window in rear elevation at first floor level with French doors and a Juliette balcony.

Erection of rear extensions at lower ground, ground and first floor levels; erection of railings on part of top of the proposed lower ground floor rear extension and replacement of trellises on side boundaries with close boarded fencing, in connection with the formation a roof terrace; installation of new French doors following the removal of existing window, to the rear elevation at ground floor level, to provide access to the proposed roof terrace; erection of a new enlarged dormer window following the removal of existing in the rear roofslope; lowering the lower ground floor level; demolition of existing external staircase and steps and formation of new steps with metal railings and handrails in the rear garden; associated landscaping of the rear garden.

Erection of a low level brick built front boundary wall with brick piers and concrete coping, following the removal of existing front boundary wall; alterations within the front garden to include, installation of tiles to replace concrete area, and installation of permeable gravel following the removal of existing raised stone paved slabs; alterations to existing windows including repairs and repainting of all windows and cills; installation of aluminium bi-folding doors following the removal of existing bi-folding doors and a window, to the rear elevation at ground floor level.

Variation of condition 2 of planning permission ref: 2022/00949/FUL granted 13th July 2023 for the 'Erection of a part one/part two storey extension to the main building at roof level following removal of existing plant; plant enclosure at seventh floor level; three-storey tiered extension to the side and rear of the building at second, third and fourth floor levels; roof terraces at fifth and seventh floor levels; alterations to ground floor frontage and the first floor northern elevation; replacement windows; external alterations; provision of refuse storage at ground floor level and cycle storage at basement level, in connection with the provision of an additional 4,539sqm (GEA) of high grade Class E(g)(i) office space (16,301sqm (GEA) in total)' to allow amendments to the approved drawings to include: accommodate a larger substation within the existing building envelope on the ground floor; repositioning of doors and rooflights on the green roof of the second floor; repositioning of roof lights on the second, and fourth to seventh floor terraces/green roofs and roof level; brick detailing/infill added to part of east, north and south elevations; new louvre for basement smoke extract on south and north elevations; and reposition louvre on west elevation.

Replacement of existing single glazed sliding sash timber windows to the front elevation with new double glazed sliding sash timber windows; replacement of existing single glazed timber sliding sash and casement windows to the rear elevation and side elevation of the existing back addition with new double glazed sliding sash and casement uPVC windows; replacement of existing single glazed uPVC entrance door to the street side elevation with a new composite entrance door; and replacement of existing single glazed timber door to the side elevation of the existing back addition at ground floor level with a new double glazed uPVC entrance door.

Replacement of existing dormer window with an enlarged dormer window in the rear roofslope following the demolition of existing roof extension; installation of 3no rooflights in the front roofslope; demolition of existing chimney stack at roof level.

Replacement of existing double glazed timber casement windows to the front elevation with new double glazed uPVC casement windows; replacement of existing double glazed uPVC and timber casement windows to the rear elevation with new double glazed uPVC casement windows; and replacement of existing double glazed timber and uPVC doors to the rear elevation at ground floor level with a new double glazed uPVC entrance doors.

Erection of 3no dormer windows to replace the existing windows in the front roofslope; 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 and rear of the existing back addition; excavation of the front and rear garden to form lightwells in connection with the enlargement of the existing basement; installation of 15no solar panels and 1no rooflight at main roof level; installation of 3no solar panels and 1no rooflight above the roof of second floor rear back addition; infilling of 1no window and installation of a new window to the side of rear back addition at first floor level; alterations to the roof of ground floor back addition to include the installation of new rooflights; erection of external stairs at basement and ground floor levels to the rear of the property; erection of glass balustrade at ground floor level to the rear elevation; reinstatement of chequerboard tiled entrance.

Erection of a single storey rear extension, to the side and rear of the existing back addition following the demolition conservatory; installation of a new window to the side elevation of the back addition at ground floor level.