Dual/alternative use of the third and fourth floors for either continued offices (Class E) and / or as 1 x 2 bedroom flat (Class C3) and; external works including the insertion of skylight at roof level; trickle vents; Welsh slate to mansard roof; removal and replacement of mastic asphalt roof weathering; new roof insulation; new leadwork to dormer (including cheeks), solid timber entrance door; repositioning of windows to allow for reconfigured staircase; addition of window to allow a smoke vent lobby and extension of railing at roof level.

Erection of two-storey rear extension with balcony at ground floor level and terrace at first floor level; Installation of Juliet balcony at second floor level to rear; Reconfiguration of rear roof lights and 4th floor dormer windows: Replacement of windows to front and rear; Formation of new window openings in side wall of rear closet wing; Excavation of front basement vaults associated with use as habitable accommodation; Installation of plant machinery; and associated external alterations.

Variation of condition 1 of planning permission dated 31 May 2023 (RN: 23/01224/FULL) for demolition of existing rear and side extension, and replacement with single storey rear extension (lower ground level), and double storey side extension (lower-ground and ground level), lowering of existing lower-ground floor level, addition of rooflights at ground floor, first floor, and roof level, and updates to existing rear dormer and windows.; NAMELY, for the installation of a rooflight to the side extension.

Excavation of basement level beneath footprint of existing house with walk on rooflights; Rebuilding of bathroom extension at lower ground floor; Erection of extension at ground floor level over octagonal wing and creation of new parapet; Erection of infill extension on northeast elevation; Remodelling of bay on southeast elevation at lower ground floor level; Erection of replacement dormer; Demolition of existing retaining walls on south east elevation and eastern lightwell and construction of new metal escape stairs in these location; Replacement of windows; Rationalisation of drainage, repair of stucco render, repair/ refurbishment and part replacement of existing roof, refurbishment/ replacement of existing chimney and pots; Installation of Plant Machinery; Erection of bin and bike store to front garden; and associated external alterations.

Demolition of existing rear and side extension, and replacement with single storey rear extension (lower ground level), and double storey side extension (lower-ground and ground level), lowering of existing lower-ground floor level, addition of rooflights at ground floor, first floor, and roof level, and updates to existing rear dormer and windows.

Demolition of existing front garage door and installation of new triple sash window; removal of concrete ramp to garage with installation of new cantilevered off road car parking space at pavement level; new side extension plant room with air conditioning unit with louvered attenuation and side staircase to rear garden; installation of new back door access to property to side of existing closet wing at LGF level; new roof extension with rear dormer window to existing roof pitch; removal of existing chimney to rear of property; alterations to windows and doors.

Variation of condition 1 of planning permission dated 21st April 2022 (RN: 22/00336/FULL) for the Extension to mansard roof and roof terrace, relocation of extract duct to the rear from RN: 22/00336/FULL. Namely, to increase in the overall height of the North elevation dormer windows by lowering the cill level and to increase the size of the roof light above the staircase.

Amendments to planning permission dated 2 March 2022 (RN:21/08243/FULL) for 'Variation of condition 1 of planning permission dated 25th August 2021 (RN 21/03822/FULL) which itself varied condition 1, condition 4 (part a) and condition 5 (parts i, iv and v) and the removal of Condition 4 (parts b and c), 5 (parts ii and iii) and 8 of planning permission dated 3 December 2020 (RN:20/03764/FULL) for 'Removal of existing roof top plant and extension to create an additional storey at fifth floor with tiled mansards and lead clad dormer windows to front and rear; a single storey extension at fourth floor comprising a glazed dome above the existing rear bow; installation of plant at roof level; partial infilling of lightwell adjacent to Gwydyr House; facade cleaning and other facade repairs; and other associated works in connection with the existing use (Sui Generis)'. Namely, amendments to the new fifth floor roof layout and increase front parapet height.

Conversion of flat at first, second and third floors into 2 x 1 bedroom flat; Erection of mansard roof extension with dormer window over part of rear roof; Insertion of roof window on side elevation. Erection of bike and bin store in front garden.

Erection of dormer to rear, extension of roof to accommodate stairs to loft to rear, formation of 3 rooflights to front and associated external alterations, in connection with conversion of loft to habitable accommodation.