Excavation of basement level underneath the footprint of the main house and area to side; Excavation of side extension at Lower Ground Floor; Erection of rear conservatory to existing outbuilding; Alterations to fenestration and level of front garden; Installation of plant machinery to rear; and associated external and internal alterations. (Linked with 22/04690/LBC)

Variation of condition 1 of planning permission dated 15 February 2021 (RN: 20/08250/FULL) for the Refurbishment of existing townhouse and attached mews house, erection of lower ground floor infill extension with ground floor terrace above, erection of ground floor rear mews extension with first floor terrace above, erection of first floor rear mews extension, replacement of first floor conservatory to rear of main house, and installation of roof level plant equipment to main house. NAMELY, to allow additional fabric removal at ground, first, second, third, and fourth floor levels to regularise demolition work that went beyond that consented on the approved demolition plans ref: 20/08250/FULL.

Variation of condition 1 of planning permission dated 01 February 2017 (RN: 16/07799/FULL) for 'Alterations including erection of extensions at rear lower ground, ground and first floor levels, creation of roof terrace at rear third floor level, replacement of non-original windows, external repair works and landscaping'. Namely, to allow amendments including repairs to the front and rear elevations and roof coverings; adjustments to the access hatch to the roof, omission of the approved walkway and handrail and re-siting of the chimneystack to its original position; repair and rationalisation of pipework; alteration of rear French door design and provision of double glazing in the conservatory; enclosing of the rear lightwell between the main house and extension at lower ground level with rooflights; alteration of landscaping in the garden and terrace areas; and internal refurbishment works.

Erection of a side infill extension and alterations, including a new basement floor,rear conservatory, roof alterations and new Juliet balconies at the upper ground floor to single dwelling house.

Erection of a temporary fire escape staircase for 21 Arlington Street for a period of 3 years and facilitating works including demolition of modern conservatory to William Kent House and a blockwork wall, associated cuts into listed fabric to enable structural support of the escape stair, and works to make good the fabric upon removal of the temporary escape stair and permanent hard landscaping in place of removed conservatory.

Excavation to extend existing basement; open front lightwell with associated new stair; erection of rear infill extension at first and second floor levels to house staircase; installation of replacement rear conservatory skylight; installation of sliding glazed roof to enclose rear courtyard; all in association with use as a single family dwellinghouse. (Linked to 20/07117/LBC)

Refurbishment and erection of a ground level extension to rear of mews house with a new roof terrace, infill of lightwell at lower ground level, replacement and extension of existing conservatory; Installation of plant equipment at roof level of the main house and mews and lower ground floor.

Excavation of a basement under footprint of the house and part of front and rear garden incorporating lightwells, demolition of existing rear conservatory and erection of a single storey glazed rear extension, removal of rear dormer and erection of new dormer window, installation of replacement rooflights, replacement/repair of windows, rebuilding of existing timber shed, installation of vehicular gates, installation of plant in enclosures at the side of the building, and general internal/external refurbishment works. (Linked to 20/03116/LBC)