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.

Non-material amendments to appeal decision APP/N5090/W/21/3289161 dated 12/07/22 (planning ref 21/3726/FUL) for 'Redevelopment of the site to deliver up to 260 homes and up to 709 sqm GIA of Class E commercial floorspace through the conversion of Barnet House from offices to residential, including extension at roof level, and the front, rear and side elevations alongside the provision of Class E use at ground floor of Barnet House. And the demolition of rear annex and erection of new residential buildings. Together with associated public realm, landscaping, access improvements, car and cycle parking.' Amendments to include: New connecting corridor for fire safety; Replan some apartments to facilitate new corridor; 'Twinning' of some balconies to facilitate new corridor; Replan apartment layouts on top two floors to enable dual means of escape; Replan apartment above substation on noise considerations; Inclusion of local vents and risers in accordance with revised fire strategy; Reconfiguration of landscaping to retain more trees; Rationalisation of basement to improve efficiency of car parking layout; Improved car parking arrangement increasing the car parking ratio from 0.22 to 0.25.

Non material amendment to planning permission PL/22/1805/FA (Demolition of existing rear extension and construction of single storey extension, changes to windows. Widening of the existing entrance with formation of new driveway and replacement of front boundary fencing with masonry boundary wall and tree re) to allow for addition of some rooflights into the existing roof and a flat roof lantern hidden behind an existing roof.

Application for a non-material amendment to planning application 22/02214/HOU (Demolition of existing conservatory and erection of single-storey rear extension, partial conversion of garage to utility room and associated changes to fenestration) Amend the crown roof to a flat roof for the rear single storey extension.

Non material amendment to planning permission 20/P/2122/FUL (Erection of an extension to existing factory and warehouse premises; remodelling and expansion of vehicle parking and circulation areas and erection of a new gatehouse; replacement and remodelling of conveyor structure to the north of the main site) to allow for; amended Gypsum Store design, amended Calcination Workshop design, removal of maintenance space and compressor, amendments to previously approved pallet store and waste plasterboard store, new bearer store and hazardous waste store, additional flue, additional louvres, position and quantity of doors and windows, size and quantity of roof lights, removal of bore hole pump, sizes of various aspects e.g. Liquid Store, MCC Room 1, Substation Room 1, rationalisation of tree planting and additional planting e.g. to seating area

Amendments to planning permission dated 27th March 2019 (RN: 17/02394/FULL) for alterations and extensions, including demolition and reconstruction of rear extensions, excavation of basement floor, removal of tree, alterations to front boundary wall, installation of mechanical plant, erection of cupola at roof level, use of part of garden to rear of No.8 Ordnance Hill, and internal works to all floor levels in connection with the use of the building as five residential apartments (2x3 bed, 2x2 bed, and 1x1 bed flats) NAMELY, for the rewording of condition 22 (below-ground contamination).

Non-material amendment to application 22/1010/FFU (extensions and alterations) to allow for a change in the roof form from a pitched/crown roof to a flat roof with two roof lantern and the removal of the mezzanine floor and roof lights

Amendments to planning permission dated 27 March 2019 (RN: 17/02394/FULL) for alterations and extensions, including demolition and reconstruction of rear extensions, excavation of basement floor, removal of tree, alterations to front boundary wall, installation of mechanical plant, erection of cupola at roof level, use of part of garden to rear of No.8 Ordnance Hill, and internal works to all floor levels in connection with the use of the building as five residential apartments (2x3 bed, 2x2 bed, and 1x1 bed flats); namely, the insertion of a new sash window to match the existing windows in the East elevation of the original chapel building; the introduction of powder coated aluminium windows within the new rear block, providing a consistent design approach within this new part of the building, and allowing an enhanced environmental performance to be achieved; and the simplification of the façade treatment of this new part of the building, (simplified cornice detailing, omission of window surround detail)

Amendments to planning permission dated 27 March 2019 (RN: 17/02394/FULL) for 'alterations and extensions, including demolition and reconstruction of rear extensions, excavation of basement floor, removal of tree, alterations to front boundary wall, installation of mechanical plant, erection of cupola at roof level, use of part of garden to rear of No.8 Ordnance Hill, and internal works to all floor levels in connection with the use of the building as five residential apartments (2x3 bed, 2x2 bed, and 1x1 bed flats)'; namely, minor repositioning of roof lights, one additional roof light in the north east roof pitch, and minor changes to the dimensions of the roof lights, minor changes to the roof terrace and vent pipes.

Amendments to planning permission dated 18th February 2021 (RN:20/06601/FULL) for Variation of condition 1 of planning permission dated 21.5.20 (RN:19/07406/FULL), which itself varied condition 1 and 9 of planning permission dated 20.11.18 (RN: 18/03520/FULL) which itself varied condition 1 of planning permission dated 12 September 2017 (RN: 16/06423/FULL) for, 'Alterations to the existing building including retention & repair of the front and side facades, part demolition & replacement of the rear facade, rear extension of the 2nd-5th floors, removal of existing & introduction of a new 6th floor, introduction of a new set-back 7th floor, extension of the existing basement levels to include two additional basement levels (including one mezzanine level), installation of roof plant & plant screen, public realm works including hard & soft landscaping, removal of the security kiosks, fencing, bollards & gates/barriers to Blackburne's Mews & Culross Street, removal & replacement of 6 No. trees in front of the Grosvenor Square elevation & re-opening of the road on the western side of the Square, all in connection with the use of the building as a hotel (Class C1) with flexible retail/restaurant use at 1st floor, ground floor and basement 1 (Class A1/Class A3/Class C1), flexible restaurant/bar use at 7th floor (Class A3/Class A4/Class C1), leisure/spa facilities within the basement (Class D2/Class C1) & an ancillary ballroom, event spaces, back of house facilities & associated car, cycle parking & servicing facilities accessed from Blackburne's Mews, & other associated works' - NAMELY, to amend Condition 17 to remove reference to the seventh-floor level [requiring public access] and an additional condition to read as follows: The area at seventh floor level designated as a restaurant/bar (Flexible Class A3/A4/C1) must remain open to members of the general public (whether or not they are guests at the hotel or visitors of hotel guests) on not less than 200 days per year