Development of part four storey Norman Shaw South internal courtyard infill building, to provide further accommodation for parliamentary uses (Sui Generis); internal and external refurbishment, including installation of new building services and rooftop louvres; secondary glazing, and interiors, creation of new openings, alterations to basement vaults, and associated works including temporary construction works; Partial reconfiguration of basement level of 1 Canon Row to accommodate a new cycle centre and goods lift connecting to the lower ground level, limited secondary glazing and brickwork repairs to internal courtyard facade and replacement of fire doors connecting to Norman Shaw South; Single storey building to St Stephen's Yard connecting to Norman Shaw South and Portcullis House to provide an extension to existing accommodation for parliamentary uses (Sui Generis). Linked to 19/08267/FULL REVISED SCHEME: including amendments to risers and services and omission of photovoltaic roof tiles.

Partial demolition of the 1980s extension with infilling of existing terrace space at 43-44 Parliament Street and development of a new facade to the Canon Row elevation; a new roof and mansard on 1Parliament Street and 2-4 Canon Row; refurbishment of Bridge Street buildings; and alterations to ancillary residences to provide further accommodation for parliamentary uses (Sui Generis); internal and external refurbishment, including installation of new building services; secondary glazing; and interiors; creation of new openings; and refurbishment of basement vaults, and associated works including temporary construction works. (Linked to 19/08287/FULL) REVISED SCHEME: including amendments to Canon Row facade, roof plan and form, pitch of Parliament Street mansard roof extension to north and northern lift overrun; increase in area of photovoltaics; internal amendments.

Variation of condition 1 of planning permission dated 3 March 2020 (RN 19/09981/LBC) for the Variation of condition 1 of listed building consent dated 20 February 2016 (RN: 15/10446/LBC) for the: Development of 55-59 Knightsbridge (including retention of Knightsbridge facades, demolition and the dismantling and reinstatement of roofs and chimneys) to provide retail (Class A1) at basement and ground floor levels and 18 residential flats at first, part second floor and third to fifth floor levels. Demolition of 1-2 William Street and its replacement with a redesigned building with internal linkages to 55-91 Knightsbridge. Namely, to allow alterations to William Street Residential Entrances, door to Wilton Place, fenestration changes to rear facade, increased lift Shaft to rear face of William Street, merlons to west elevation, West façade end bay reconstructed, chimneys to coping stone detail in mansard, pavilion gable apex roof stones, ridge height of mansard roofs, projecting signs to shopfronts, retained parapet to no. 55 Wilton Place, general layout alterations, and associated works from RN 19/09981/LBC, NAMELY, to vary the approved drawing numbers to amend the design of the external vent at no. 4 William Street and the removal of a ceiling at third floor level.