Amendment to planning permission dated 13th February 2023 (RN 22/08253/FULL) for the remodelling of roof to provide third floor level, extension to sub-basement, replacement conservatory and associated fenestration and facade changes. Installation of plant within the roofspace with louvres on the rear elevation and installation of PV panels at main roof level. (Site includes 31 Hay's Mews) NAMELY, amendment of the trigger of condition 15 from pre-commencement, to pre-basement excavation work.

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.

Variation of condition 1 of planning permission dated 27 October 2021 (20/05884/FULL) for 'Partial demolition and remodelling of the principal facades and fifth floor and addition of two storeys for office use and provision of retail, restaurant and gym uses at ground and basement levels. Formation of terraces on sixth and seventh floors for office use and associated plant and cycle parking'. NAMELY, to amend the drawings and create a new roof terrace on roof of 7th floor.

Variation of conditions 1 and 15 of planning permission dated 23rd March 2018 (RN 17/08716/FULL) for the 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 changes to the approved scheme to be incorporated into the permitted scheme; the addition of car detailing in the car park; the remodelling of the UKPN substation pavilion on Grosvenor Crescent to introduce a revised design of the Pembroke Horn and a secondary entrance; details of design of the Chinese restaurant door on Grosvenor Crescent; and minor amendments to the design of the facades.