Erection single storey extension within rear lightwell at basement level to provide additional office accommodation (Class E) with courtyard above. Alterations at rear fourth floor to create a terrace. Infill of rear windows at basement level and roof light at main roof level. Replacement of existing doors/windows from ground to fifth floor level (roof enclosure) and removal of rear fire escape stairs.

Amendments to planning permission dated 15 October 2019 (RN:19/05236/FULL) for variation of Condition 1 of planning permission dated 28th January 2019 (RN 18/10309/FULL) for, 'Alterations including the removal of the existing seventh floor and plant and replacement with two storeys of office accommodation and consolidated rooftop plant, alterations to the existing windows, refurbishment of the existing entrance and associated external alterations'; NAMELY, introducing an additional stair and lift between lower ground and ground floors, creating a secondary entrance accessed from Grantham Place, cutting back the ground floor slab, and erecting balustrades and timber decking to external terraces on the 8th floors to facilitate their use as terraces, revisions to rooftop plant enclosure, installation of roof level generator flue, and alterations to the eastern party wall line. Namely, omission of a projecting nib wall at level 7 of the south facade.

Variation of condition 1, removal of condition 38 and details pursuant to conditions 23 and 34 of planning permission dated 20 February 2017 (RN:16/10919/FULL) which itself varied condition 1 of planning permission dated 15 August 2016 (RN:15/11234/FULL) for substantial demolition of existing buildings and redevelopment of the site to provide a mixed-use scheme accommodating a new building comprising basements, ground floor and part eight upper storeys plus rooftop plant with frontages to Charing Cross Road and Manette Street; refurbishment of buildings on Greek Street; in connection with use of the buildings for offices, retail, restaurants, art gallery/art education use, nightclub and eight residential dwellings; provision within basements of plant equipment, waste rooms and cycle parking; new public realm and pedestrian route through the site from Manette Street to Greek Street; and associated external works. Namely, changes to internal layout of building with frontages to Charing Cross Road and Manette Street with use of part basement level 2 as back of house space, relocation of building maintenance unit to ninth floor, erection of steel deck within plant structure at roof level and changes to terrace areas and massing of building; alterations to rear of building, roof form and layout of residential accommodation and installation of plant machinery at 12-13 Greek Street; alterations to the link building; changes to windows on rear façade and increase in parapet height by 700mm at 14 Greek Street; Installation of second gate to ground level passageway; omission of requirement for obscure glass on south elevation; and provision of details of a scheme of public art and gates to the pedestrian route.

Internal alterations to improve the standard of accommodation of the flat, including new wall openings, removal of non-original partition walls and creation of new partitions, and restoration of original windows on the main facade.

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.

Alterations to front boundary wall to widen existing gateways and introduction of new driveway; infilling garage door with masonry cavity wall construction complete with window to match others adjacent; lowering of window sill to existing window in front facade and installation of new window to match others adjacent; conversion of existing garage to habitable accommodation; two single storey extensions to rear of property; and removal of two trees.

Conversion of one internal garage to habitable accommodation, formation of new doors and windows to front at ground floor level, Installation of rooflights to main roof, and replacement of windows.

Variation of Condition 1 of planning permission dated 6 August 2021 (RN: 21/02885/FULL) for, 'Extension at rear ground and upper ground floor levels over the basement lightwell to provide additional restaurant and office accommodation (Class E). Installation of a new metal access stair from ground floor level to the retained basement lightwell'; NAMELY, increase in size of approved windows; adjustment to rear stair and slight reposition of wall. (Application under Section 73 of the Act).

Erection of a mansard roof extension to Bryanston Mews East to provide additional residential accommodation (Class C3) for use in association with the existing lower ground and ground floor flat; addition of windows, doors and alterations to fenestration to rear of 22 Bryanston Mews East facing internal lightwell; installation of new window to vaults facing the front light well and associated works [Site includes 22 Bryanston Mews East]

Variation of Condition 1 of planning permission dated 21 April 2022 (RN: 22/00337/FULL) for Erection of rear extension at second floor to provide additional accommodation space; NAMELY, increase in the height of the roof to accommodate internal level changes and increase in height of new window.