Amendments to planning permission dated 29th June 2022 (RN 21/02892/FULL) for the variation of Condition 1 (approved plans and documents) of planning permission dated 3 July 2020 (RN: 19/04487/FULL) for: Demolition of existing buildings and structures and construction of a new mixed-use development comprising hotel and associated facilities (Class C1), flexible workspace (Class B1a / B1c), retail and food and beverage (Class A1 / A3), events space (Sui Generis) and a replacement street cleaning depot (Sui Generis) with associated new public realm and highways improvements. (site includes Taxi House, Waterside House and Westminster Street Sweepers Depot). Namely, amendment to the wording of condition 42 to require details of a bespoke fenestration arrangement to Woodfield Road and Grand Union Close.

Variation of Condition 1 and 11 of planning permission dated 20 October 2022 (RN: 22/04903/FULL) for the demolition of existing mansard roof and roof level plant and construction of two storey vertical roof addition with extensions at fourth, fifth, sixth and seventh floor levels for additional office (Class B1) floorspace. Use of the lower ground and basement level for flexible/alternative office (Class B1)/retail (Class A1)/leisure uses (Class D2); car parking, cycle parking, ancillary office uses and mechanical plant. Alterations to the existing building including new windows and entrance, new terraces to eighth and tenth floor levels and new plant enclosure at roof level and associated works; and amendments to car parking provision (retention of the public car park), alterations to the cycle parking provision and basement layouts and reduction in flexible commercial floorspace; namely, design modifications to the Carlton House Terrace elevation including an additional entrance, pavement lights, replacement railings and re-alignment of a section of the south facade; alterations to the lower ground floor glazing on the west elevation, a new stairwell and platform lift to roof terrace (level 10), widening of central core to accommodate emergency access and fire-fighting lifts, realignment of level 10 balustrade and alterations to south-west lift overrun and amendment to the wording of Condition 11 to include the word 'pergolas'.

Amendments to planning permission dated 23rd January 2023 (RN: 22/05428/FULL) for two-storey extension including roof-level plant along the Bressenden Place façade to provide a new office entrance pavilion (Class E), the provision of Class E office / retail accommodation, remodelling of the crown of Portland House and creation of a setback rooftop extension to provide office amenity (Class E) and an outdoor terrace, reconfiguration of the second floor plant accommodation fronting Cardinal Place, relocation of the zephyr on Bressenden Place, provision of cycle parking, public realm and associated works including window replacement and the application of a new façade treatment, namely to amend the wording of Condition 3 (Code of Construction Practice) to enable early works to be carried out in accordance with the Appendix A dated 22/11/22 signed by the Environment Inspectorate and prior to the discharge of Condition 3.

Amendments to planning permission dated 24 February 2020 (RN: 19/00529/FULL) for redevelopment of Pegasus House and Nuffield House including demolition behind a retained facade (west, south and east) of Nuffield House and replacement building comprising 2 level basement, ground, mezzanine and first to seventh floor and demolition and replacement of Pegasus House comprising 2 level basement, ground, mezzanine and first to fifth floors; amalgamation of the two buildings to provide new office (Class B1), retail (Class A1), restaurant (Class A3), flexible office / retail (Class B1 / A1), and residential accommodation (Class C3); and other associated works, NAMELY, to amend the shopfronts and ground floor level entrances, rearrangement of reception spaces, Sackville historic façade review and alignment, UKPN ventilation and access update, lift overrun and Nuffield house roof massing, rear façade updates, roof plant enclosure and proposed chimney, sub-basement reduction and retained facade timber window replacement

Variation of condition 1 of listed building consent dated 5 March 2020 (RN 19/00530/LBC) for the Redevelopment of Pegasus House and Nuffield House including demolition behind a retained facade (west, south and east) of Nuffield House and replacement building comprising 2 level basement, ground, mezzanine and first to seventh floor and demolition and replacement of Pegasus House comprising 2 level basement, ground, mezzanine and first to fifth floors; amalgamation of the two buildings to provide new office (Class B1), retail (Class A1), restaurant (Class A3), flexible office / retail (Class B1 / A1), and residential accommodation (Class C3); and other associated works from RN 19/00530/LBC, NAMELY, to include the following changes: amend the design of the shopfronts and ground floor level entrances, rearrangement of reception spaces, alteration to lift overrun and Nuffield house roof massing and window replacement.

Amendments to planning permission dated 23 March 2018 (RN: 17/08716/FULL) for Variation of condition 1 and removal of condition 33 and 34 of planning permission dated 20 April 2016 (RN: 15/06448) for the 'Demolition of all existing buildings and comprehensive redevelopment to provide a mixed use development accommodated in a single building arranged around a central courtyard of lower ground, ground, eight upper floors, rooftop plant and basements. Use of new building for hotel comprising up to 190 guest rooms, restaurants/bars, ballroom, function rooms, hotel leisure/spa facilities, ancillary and back of house spaces (Class C1), 24-28 residential dwellings including ancillary residential leisure and amenity facilities (Class C3) and retail (Class A1), car and cycle parking with access from Grosvenor Crescent and Halkin Street, refuse, delivery and circulation spaces within basements and other associated works. (Site includes Yorkshire House, Grosvenor Crescent, 3, 4, 5 and 8 Pembroke Close and 12 Halkin Street London SW1)'. NAMELY, to amend the approved drawing numbers to allow design changes to all building facades and internal alterations to the design of the building, installation of a Building Maintenance Unit at roof level and alterations to the roof parapet line, NAMELY, to make changes to the south-west building elevation facing Forbes House, specifically in relation to the approved windows and their layout on the southern part of the site and to add an additional condition (38) to the planning permisison: "You must carry out the development in accordance with the approved Design Amendment Statement Ref: 1GP-HAP-XX-XX-RP-AR-0096 insofar as it relates to the approved windows and their layout on the southern part of the elevation and maintain it in accordance with this Design Amendment Statement in perpetuity thereafter."