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 05 October 2023 (RN: 23/04630/FULL) for variation of Conditions 1 and 3 of planning permission dated 15 May 2023 (RN: 23/01735/FULL) for, 'alterations including partial infilling of rear courtyard on basement and ground floors, rear extensions on first to fifth floors and at sixth floor roof extension with plant enclosure, roof terrace and green roof above all to provide additional office accommodation (Class B1); new balconies/terraces at front fourth, fifth and seventh floor levels and rear first, sixth and seventh floor levels. Flexible use of part basement and part ground floor for either retail / office/ gym use (Class A1/ B1/ D2), provision of cycle parking and associated external alterations'; namely, to install privacy screens on the first-floor terrace, and to amend the wording of Condition 3 to enable the installation of the privacy screens. (Application under Section 73 of the Act). NAMELY; provision of condenser and handrail at fourth floor terrace.

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 01 December 2022 (RN: 22/05952/FULL) for the variation of condition 1 of planning permission dated 23 June 2015 (RN:15/01031/FULL) for erection of full height side (facing Malvern Road) and rear extension, demolition of existing mansard roof and mechanical plant and replacement with enlarged mansard roof extension at third floor level across extended building to provide additional hotel accommodation (Class C1). Namely, reducing to 3 dormers, proposed lift to all floors, small stone coping to the top of the parapet and details of the entrance door including canopy to hotel; relocation of bin storage facilities; installation of louvre; NAMELY, the introduction of 4 low profile condenser units to the roof top with concealed louvered screen.

Amendments to planning permission dated 12th December 2022 (RN:22/03987/FULL) for the conversion of ground floor garage to habitable accommodation and erection of mansard extension for use in connection with the existing first floor flat (Unit 8); and extension to the rear first floor to existing flat, Unit 2 [Site includes rear of 25-27 Catherine Place] namely; to extend the width of the flat roof to the edge of the building.

Amendments to planning permission dated 05 March 2021 (RN: 20/08219/FULL) for 'Infill extensions at rear ground floor level, alterations to rear fenestration and new roof to rear extension, conversion of one former coal cellar in basement to habitable accommodation, internal alterations to rear extension, basement floors and associated works'. Namely, to alter design and material of rear patio doors.

Amendments to planning permission dated 26th February 2019 (RN: 18/10449/FULL) for alterations to existing eighth floor to extend in line with lower floors and roof extension to create new tenth floor to provide additional office accommodation NAMELY, the reconfiguration of the rooftop plant to have a varied flue; additional cycle storage, new showers and ancillary lockers at basement level.

Amendments to planning permission dated 12 November 2018 (RN:18/08323/FULL) for Erection of rear extension at first to fourth floor levels and single storey roof extension at 5th floor level, including roof top terrace to provide additional office floorspace (Class B1) and installation of air conditioning units at roof level. NAMELY; to enable internal alterations including new steel columns; relocataion of shower accommodation to the basement; lobby and plant rooms added to the basement; sparattion of the stairs to the basement area; alterations to internal office layout; omission of glass rooflight set within roof terrace; addition of movable planter in front of the plant enclosure; location of 2x low level doors within plant enclosure updated.

Amendments to planning permission dated 12th November 2018 (RN: 18/08323/FULL) for erection of rear extension at first to fourth floor levels and single storey roof extension at 5th floor level, including roof top terrace to provide additional office floorspace (Class B1) and installation of air conditioning units at roof level NAMELY, internally positioned steel columns added/ shower accommodation has been moved to the basement/ lobby and plant rooms added to the basement/ the stairs to the basement area have been separated/ internal office layout alterations/ glass rooflight set within roof terrace to the floor below has been removed/ consented automated opening box rooflight updated/ a movable planter added in front of the plant enclosure/ Location of 2x low level doors within plant enclosure updated.

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 omission of swimming pool from lower ground floor, with space being used as a games room and living area, resulting in reduction in overall basement excavation; reduction in the amount of excavation towards the front of the building, meaning that the front wall of the chapel would no longer need to be underpinned; Alterations to the internal layout of accomodation, including omission of duplex flat layout with internal staircase and instead arranging the accommodation as self contained flats on each floor.