Amendments to planning permission dated 15th December 2021 (RN:20/03623/FULL) for amalgamation of two maisonettes to create a single dwelling house [Class C3], excavation beneath the footprint of the existing building and excavation of part of rear garden at lower ground floor level. Demolition of the existing extension to the rear and construction of a new lower ground and ground floor rear extension. Repair work to the facade, alteration to street frontage in line with the street and landscaping to the rear garden. Installation of acoustically attenuated condenser to the rear garden. Namely, to amend the wording of Condition 16 (Contaminated Land) to allow radon monitoring to occur 'after' occupation.

Amendments to planning permission dated 10 August 2020 (RN: 20/02567/FULL) for Variation of condition 1 of planning permission dated 12 December 2018 (RN 18/08718/FULL) for 'Alterations and extensions to 32 Belgrave Square and redevelopment of 25/27 Belgrave Mews South behind retained facade including new link extension between the mews house and main building, fourth floor infill extension, new mechanical plant and rooflights, and associated alterations, in connection with enlargement of single family dwellinghouse and erection of an Orangery extension beyond rear wing at ground floor level (site includes 32 Belgrave Square and 25/27 Belgrave Mews South). Namely, to amend the decision notice to include additional plan numbers.

Amendments to planning permission dated 1 September 2014 (RN: 14/02566/FULL) for: Variation of Condition 1 of planning permission dated 04.09.13 (RN: 12/12041) for external alterations and extensions including rebuilding of existing 7th and 8th floor levels, installation of photo-voltaic cells, green roof & plant at roof level, alterations to street facades and rebuilding of rear facades (with new balconies on Smith Court and Piccadilly Theatre frontages, and roof terraces at eight floor level on all frontages), provision of 38 dwellings at 4th-8th floors, with new residential entrance to Sherwood Street, use of second and third floor as offices (Class B1), reconfiguration of existing uses at basement, ground and first floor levels at 12/13 Sherwood Street and 63-75 Brewer Street to provide 2 No. retail (Class A1) units and altered health club (Class D2) layout with new health club entrance on Brewer Street - to allow minor amendments to the approved scheme including: changes to the steel window design on the street facing facades; alterations to the aluminium window design on the rear facades; installation of ventilation grilles in the windows at 3rd-7th floor levels on the Sherwood Street and Brewer Street elevations; alterations to the flank/party wall on Brewer Street; changes to the roof layout and massing; AND removal of Condition 3(2) (requiring detailed drawings of new windows): NAMELY, to amend energy and sustainability strategies to facilitate the removal of a trigeneration system forming part of the central plant within The Crown Estate's Quadrant development and amend the wording of condition 20 accordingly.