Excavation of a sub-basement, redevelopment of nos. 5 - 6 Yarmouth Place, alterations and extension to provide enlarged sixth and new seventh floor storeys and installation of plant at basement, ground and fourth floor levels. Use of extended and altered building as 36 flats (Class C3), car / cycle parking and a shop (Class A1) or financial and professional institution (Class A2) at part ground floor level. Internal alterations and removal of the underutilised basement car park and car lifts, addition of screening to rear amenity space, minor design changes to the frontage on 100 Piccadilly including reinstatement of decorative iron balustrading to the former lightwell area, internal alterations at all levels, alterations to White Horse Street Facade including new residential entrance on the White Horse Street facade.. (site comprises 96-100 Piccadilly and 5 - 6 Yarmouth Place).

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.