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 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 2nd August 2023 (RN:23/03161/FULL) for Excavation of the lower ground floor, rear garden, front vaults and front lightwell level. Erection of a side in-fill extension at lower ground floor level and partial in-fill at ground floor level with terrace. Demolition of rear closet wing and erection of replacement at lower ground, ground, and first-floor level. Replacement double glazed windows and doors to match existing. Namely, solid floor to the rear terrace at ground floor level in place of glass, the relocation of the balustrade to the rear terrace to allow for the inclusion of planting, round central roof light within the flat roof above the ground floor living room extension this replaces the approved wall-abutted roof light, a change in the shape of the roof light over first floor dressing room and reduction in size of bin store to front driveway to store 2 bins

Amendments to planning permission dated 11th August 2023 (RN:23/00368/FULL) for variation of Condition 1 of planning permission dated 16 February 2017 (16/10409/FULL) for the use of part basement, part ground floor level and first to fourth floor levels and the erection of a mansard roof extension at fifth floor level to provide 14 residential flats (Class C3). Provision of external terraces at rear second, third, fourth floor and fifth floor level. Installation of mechanical plant at fourth and fifth floor level. Lowering of the existing basement vault floor below Andrew's Crosse by 0.5m and installation of new lightwells and railings at basement and ground floor level on the Andrew's Crosse elevation. Associated alterations to windows on the front and rear elevation and associated internal alterations at 116-118 Chancery Lane and removal of part of the external staircase adjacent to 115 Chancery Lane and alterations to the roof profile at rear fifth floor level and relocation of plant; namely, alterations to the size and number of dormers to the rear roof extension serving Flat 4.1 and installation of a new roof access enclosure to the front part of the roof area and insertion of a high level window at basement level; namely, alterations to the cycle store within the basement.

Amendment to planning permission dated 13th February 2023 (RN 22/08253/FULL) for the remodelling of roof to provide third floor level, extension to sub-basement, replacement conservatory and associated fenestration and facade changes. Installation of plant within the roofspace with louvres on the rear elevation and installation of PV panels at main roof level. (Site includes 31 Hay's Mews) NAMELY, amendment of the trigger of condition 15 from pre-commencement, to pre-basement excavation work.

Amendments to planning permission dated 03 August 2023 (RN: 23/02362/FULL) for, 'Partial demolition; infill of rear lightwells; front extension at fifth floor level and introduction of a terrace; partial replacement of front elevation; refurbishment of existing building; installation of plant equipment; replacement windows; cycle parking; and associated external alterations; in connection with the use of the building as Offices (Class E)'; Namely, relocating mechanical and electrical equipment from the rear roof area to within the building and amendements to the façade design of the rear.

Amendments to planning permission dated 23 May 2022 (RN 21/07685/FULL) as amended by RN: 23/03954/NMA dated 22 August 2023 for 'variation of conditions 1, 14 and 17 of planning permission dated 29th August 2019 (RN:19/00531/FULL) for the refurbishment and extensions to existing building including replacement of external facades; three additional floors at roof level plus rooftop access housing and plant enclosure; and terraces at second to seventh floor level; to provide commercial, business and service uses and nightclub (Sui Generis) floorspace'. Namely, increase in height of seventh floor; amendments to balustrade design; and omission of three windows to south elevation.

Amendments to planning permission dated 13th February 2023 (RN: 22/08253) for, 'Remodelling of roof to provide third floor level, extension to sub-basement, replacement conservatory and associated fenestration and facade changes. Installation of plant within the roofspace with louvres on the rear elevation and installation of PV panels at main roof level. (Site includes 31 Hay's Mews)'; Namely, to demolish an additional small area of the wall at the rear elevation.

Amendments to planning permission dated 16 November 2021 (RN: 21/05242/FULL) for 'Erection of rear extension, formation of lightwell and associated excavation to lower ground floor level; glazed conservatory at rear ground floor level with associated balcony and stair; partial demolition of existing closet wing and replacement with raised roof level; installation of dormer window, roof light and AC units at roof level and associated works'. Namely, to change the approved roof plant to a better performing and more environment friendly model (Daikin VRVRXYSCQ6TV1) and amend the associated plant enclosure.

Amendments to planning permission dated 10 January 2023 (RN: 22/07918/FULL) for 'Replacement lean to infill extension with new timber frame, adjust and increase existing opening on the rear elevation, new timber frame, doors to lower ground floor and ground floor to rear extension, new condensing unit to external front light well with acoustic enclosed Louvred door beneath proposed steel stair, replacement of existing front windows with new hardwood slimline double glazed windows, installation of photovolatic panels at roof level, new external metal stair to front lightwell, new Portland Stone to existing main entrance to the front elevation, existing steel balustrade ground Floor rear elevation extended to all terrace'. Namely, to relocate the condensing unit from the external front light well to within the front vault and addition of condition 4 part (6) requiring details of the vault's proposed acoustic louvred door.