Amendments to planning permission dated 9th August 2022 (RN: 22/03130/FULL) for Replacement of windows, facade cleaning, replacement of reception entrance doors, installation of extract grilles on the western facade, installation of doors to refuse and cycle stores at ground floor of the western facade, creation of accessible terraces to the western side of the 4-6th floors, erection of lift enclosure and lobby at roof level and creation of accessible rooftop terrace, consolidation of rooftop plant and installation of photovoltaic panels. NAMELY; widening of reception entrance doors, insetting of retail entrances, changes to bin and cycle store layout and elevational treatment, removal of office floor facade vents, relocation and enlargement of cycle store, and widening of fire escape door

Amendments to planning permission dated 1st June 2022 (RN:22/02572/FULL) for Installation of two new rooflights to rear roof slope, in association with loft conversion. Namely, to replace windows to front and rear at first floor level with slimline double glazing.

Amendments to planning permission dated 11th October 2023 (RN:23/02276/FULL) for Alterations including erection of roof extension to create an additional storey of accommodation. Namely, to adjust the dimensions of the two side windows on the south building elevation from 2700mm x 600mm (first floor) and 2100mm x 600mm (second floor/roof level) to 2700mm x 615mm (first floor) and 2100mm x 638mm (second floor/roof level)

Amendments to planning permission dated 08 March 2023 (RN: 22/07758/FULL) for 'Installation of a new door opening to the 5th floor roof terrace and installation of a grille to an existing window at the 5th floor of the west elevation'. Namely, addition of a new external ramp to allow for wheelchair access to and from the roof terrace on the fifth floor.

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 the planning permission dated 08 June 2023 (Ref: 22/08196/FULL) for installation of bi-fold doors and the formation of a roof terrace with balustrade at mansard level (Linked with 22/08197/LBC); NAMELY to allow for the installation of metal framed doors of a style similar to the existing windows. [Linked with 23/08076/LBC] (Works relate to Flat E)

Amendments to the planning permission dated 30 May 2022 (RN: 22/00074/FULL) for the demolition of the existing mansard roof to the rear of the property, reconstruction of a new mansard roof, formation of a terrace and replacement of windows to the front and rear elevation. (Linked with 22/00287/LBC); NAMELY, redesign of new internal staircase between 4th and 5th floors and other internal layout changes. [Linked with 23/06633/LBC]

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 11th July 2022 (RN 22/03408/FULL) for the external alterations to the building, including creation of a new roof terrace with installation of a new air conditioning unit at roof level NAMELY handrail to roof terrace perimeter with CCTV camera; amendment to planters to roof terrace; installation of CCTV to front elevation; alterations to first floor window fenestration; reinstate original render finish to ground floor; boundary fence to terrace; and first floor decorative balcony alterations.

Amendments to planning permission dated 09 November 2022 (RN: 22/01689/FULL) for the: Internal and external alterations, including dismantling and reinstating the atrium roof, installation of new enclosed plant deck to rear of 22 Albemarle Street, creation of roof terrace and shopfronts alterations, all for retail (Class E) and ancillary purposes. Namely, to allow alteration to roof level, internally facing roof to add a window where a pair of doors currently exist.