Amendments to planning permission dated 23 December 2022 (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 enable the removal of specified louvres, relocation of the generator, façade updates at ground floor level, installation of safety balustrading, relocation of the consented UKPN access, creation of a separate ground floor access for the crown amenity space and installation of additional sliding doors at Level 30.

Amendments to planning permission dated 27 July 2022 (RN: 21/04390/FULL) for the: Demolition and redevelopment of 91-92 Dean Street, Diadem Court and 10-13 Great Chapel Street, behind retained façade at 91-92 Dean Street and behind retained façade of ground and lower ground floors of Diadem Court and erection of a building of basement, ground and part three and four upper storeys with rooftop plant and roof terrace, for use as hostel visitor accommodation (sui generis) of between 725 and 775 bedspaces, and use of part of the ground basement of 14-15 Carlisle Street for healthcare clinic use with ancillary café at 92 Dean Street. NAMELY; to allow amendments to the external doors to the substation, in the Great Chapel Street elevation; reconfiguration of the internal back-of-house area at ground-floor level; replacement of glazing with solid panels for the service door in the Diadem Court elevation; retention of an existing window, previously intended to be removed, in the Dean Street elevation at ground-floor level; rearrangement of external plant equipment across both roof levels, removal of chimney from 91 Dean Street, omission of pizza flue, omission of roof terrace and replacement of existing doors and window to rear elevation of 91 Dean Street.

Amendments to planning permission dated 13th December 2021 (RN:21/07298/FULL) for Installation of replacement windows at various floor levels on the Langham Place, Great Portland Street, Langham Place West Wing, Langham East Window and Riding House Street elevations. Namely, to adjust the configuration of some of the consented louvres.

Amendments to planning permission dated 08 November 2021 (RN: 20/06899/COFUL) for 'Redevelopment of the site on a phased basis. Phase 1 - Demolition of 23 garages and former Balmoral Castle Public House. Phase 2 - Erection of a part seven storey, part six storey and part five storey building to provide community supporting housing (Class C3) (Block A). Phase 3 - Demolition of Darwin House. Phase 4 - Erection of part five storey and part four storey building to provide housing (Class C3) (Block B). All together with new public open space, hard and soft landscaping, car parking, cycle parking, plant and other associated works in each phase'. Namely, to amend the glazed side vision panel to some residential entrances from a half height window to a full height window on the east elevation of Block A and the north elevation of Block B.

Amendments to planning permission dated 21 September 2020 (Ref: 19/10047/FULL) for, 'Demolition of 134-140 Oxford Street and 77-84 Wells Street (Wells House) and the erection of a new building comprising basements, ground plus nine upper floors, with plant accommodation and Sui Generis (nightclub) at basement level 02; subterranean 'cycle centre' including cycle parking/changing rooms/drying rooms/lockers; part plant accommodation and part Class A1 (retail) at basement level 01; part Class A1 (retail) accommodation and part Class B1 (office) at ground floor level; part Class A1 (retail), part plant accommodation and part Class B1 (office) at first floor level; flexible Class A1 (retail) or Class B1 (office) at second floor; Class B1 (office) accommodation at third to seventh floors; part plant accommodation and part Class B1 (office) accommodation at eighth floor; Class B1 (office) accommodation at ninth floor; the creation of terraces on levels 6 to 8 and a rooftop terrace area at level 9 (all for use in association with office accommodation); photovoltaic panels on level 9 and the roof; and other associated works including short stay cycle parking spaces in Adam and Eve Court'; NAMELY, alterations to nightclub entrance onto Adam and Eve Court, Adam & Eve Court Louvres, to the articulation of the sixth floor dormer windows, and to the Level 9 amenity terrace space; inclusion of facade lighting strategy; internal alterations; and pulling inwards of seventh floor in northern part of site.

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.

Amendments to planning permission dated 21 June 2023 (RN: 23/02625/FULL) for 'Erection of a mansard roof extension to existing house and alterations to front and rear elevations'. Namley, to remove, refurbish and reuse the existing window at ground floor level (WG2.1); to preserve and restore the existing garage doors (DG5.1); to re-use and refurbish the existing hopper and install a new downpipe; replacement of two rooflights with one smaller rooflight at roof level; and internal alterations.

Amendments to planning permission dated 20th March 2021 (RN 20/01550/FULL) for the excavation of a basement beneath the footprint of the original dwelling. Erection of additional mansard roof storey with dormer windows. Alterations to elevation to provide new windows. Merging the two existing flats into a single dwelling house. NAMELY, to change the garage doors. Glass panel replaced by a louvered panel as required by ventilation strategy.

Amendments to planning permission dated 01 March 2012 (RN:11/11498/FULL) for use of part ground and upper floors as a single dwelling house (Class C3). Demolition of part of the existing two storey rear extension at ground and first floor level to create an open patio area. Construction of rear extension at second floor level. Removal of part of the existing roof and attic space to create a roof terrace and rooflight and screen to front elevation. Alterations to front and rear elevation windows and doors. Namely, repositioning balustrade and flank wall extended.

Amendments to planning permission dated 2 March 2022 (RN:21/08243/FULL) for 'Variation of condition 1 of planning permission dated 25th August 2021 (RN 21/03822/FULL) which itself varied condition 1, condition 4 (part a) and condition 5 (parts i, iv and v) and the removal of Condition 4 (parts b and c), 5 (parts ii and iii) and 8 of planning permission dated 3 December 2020 (RN:20/03764/FULL) for 'Removal of existing roof top plant and extension to create an additional storey at fifth floor with tiled mansards and lead clad dormer windows to front and rear; a single storey extension at fourth floor comprising a glazed dome above the existing rear bow; installation of plant at roof level; partial infilling of lightwell adjacent to Gwydyr House; facade cleaning and other facade repairs; and other associated works in connection with the existing use (Sui Generis)'. Namely, amendments to the new fifth floor roof layout and increase front parapet height.