Variation of condition 1 (approved plans) of planning permission dated 30 September 2021 (RN: 21/04952/FULL) for variation of condition 1 of planning permission dated 12 May 2020 (RN:19/05711/FULL) for the: Demolition and redevelopment of the existing Porters Lodge to provide a replacement single dwelling (Use Class C3); erection of extension to the rear of Kings Court; facade alterations, including provision of balconies at ground and first floor level to the front elevation of Kings Court, restoration of the existing brickwork and addition of limestone cladding, upgrades to the fenestration; landscaping of the site; provision of terraces to the rear and side of Kings Court. NAMELY, introduction of fire escape leading from the roof of the extension, down to the upper ground floor level including staircase.

Erection of roof extensions, a side extension at lower-ground floor level, minor internal and external works, alterations to the boundary treatment and landscaping scheme. (Linked with 23/02504/LBC)

Demolition of existing rear extension and front extensions and erection of two storey extensions to front and rear; Excavation of single storey basement with associated lightwells; Partial demolition and extension of roof including formation of dormers and installation of PV panels; Installation of of plant machinery at basement level; Alterations to fenestration; Landscaping and associated external alterations.

Demolition of rear extension at lower ground floor; replacement of front and rear elevation windows with new double glazed timber sash windows; installation of two condenser units at roof level; installation of new paving slabs in the front lightwell; alteration to vault including replacement of doors and spaces converted into services and refuge storage, bike storage and general storage; landscaping of rear courtyard with stone flooring; external repair and redecoration of all building fabric elements and external areas; repair, levelling, strengthening of floors and other key structural elements; layout alterations and refurbishments; and associated works. (Linked with 23/04616/LBC)

External alterations to both No. 13 Hill Street and 39 Hay's Mews to alter existing windows and sills; replacement of existing windows; creation of new openings and installation of new windows; infill of existing lightwells; alteration works to existing courtyard works, associated access creation and landscaping; installation of new external light fittings; installation of a new dry riser; works at roof level including repair and upgrade works; installation of new rooflights; new means of escape and access onto Hays Mews; installation of new plant equipment and associated enclosure; other associated works.

Partial demolition of building and erection of new extensions at ground and first floor levels, alterations to roof, basement excavation, alterations to windows and doors, new boundary wall treatment facing Elm Tree Road, repositioning of pedestrian gate and hard and soft landscaping works.

Provision of a temporary Chamber for the House of Commons and supporting facilities and infrastructure, including substantial demolition and redevelopment of Richmond House to create a part seven storey, part six storey building with a roof terrace and three levels of basement, to provide accommodation for parliamentary uses (Sui Generis). Refurbishment and external alterations to 49, 50, 53 and 54 Parliament Street and 85 Whitehall, including a new bridge link, to provide a visitor entrance, visitor shop and workspaces for MPs and supporting staff (Sui Generis). Landscaping works to the forecourt of Richmond House and Richmond Terrace, and associated works including temporary construction works. Linked to 19/08221/LBC. REVISED SCHEME: including amendments to stair tower on south elevation, reduction in lift overrun to Richmond Terrace, amendments to eastern elevation facing Curtis Green and roof plan to include additional planting. RE-CONSULTATION following receipt of Addendum to originally submitted Environmental Statement (ES) and further information (EIA Reg 25) including updates to ES: Ch 4 Approach to assessment, Ch 6 Townscape & Visual Impact, Ch 7 Cultural Heritage, Ch 12 Ground Conditions, Ch 13 Cumulative Impacts

Variation of Condition 1 of planning permission dated 20th December 2022 (RN 22/05746/FULL) excavation to create basement extension and lower pavement vaults; removal of existing extensions and replace with extensions at rear lower ground to third floor level including roof terrace at rear first floor level; erection of fourth floor extension in mansard style to rear and open up blind windows to front; installation of plant within mansard structure; new landscaping to garden and replace boundary wall with 16 Wilton Crescent; Namely, external wall lights at lower ground to first floor and third floor level and new air vents to the rear lower ground floor level; alterations to the design of railings at ground, first and third floor level balconies; and an intake air housing to the balcony at rear ground floor level; extended metal staircase from the lower ground floor level to rear ground floor level; and alterations to the garden finishes and layout including the provision of a new freestanding trellis with low-level air duct behind.

Alterations to 42 Wigmore Street at front elevation and rear (Welbeck Way) elevation at ground to fourth floor level. Roof terraces at third and fourth floor level for use by the existing office. Reconfiguration of mechanical plant area with associated machinery at fourth floor level. Enlargement of existing glass roof, installation of PV panels and green roof at main roof level. Re-landscaping of front courtyard including installation of green wall. Alterations to Wigmore Street arcade entrance.

Installation of air conditioning units at roof level with acoustic enclosure, alterations to fenestration to rear lower ground floor, installation of external staircase from upper ground floor level, alterations to landscape including repositioning of retaining wall, and associated internal works all in connection with the use of the property as a single dwellinghouse (Linked with 22/07748/LBC).