Variation of Condition 1 of listed building consent dated 26 June 2016 (15/09739/LBC) for Refurbishment and replacement of facades and erection of 2 additional floors and plant enclosure to both Millbank Tower and 1 additional floor to the Y buildings; excavation of basement levels; demolition of rear car park in association with re-landscaping and reconfiguration of wider site; all in association with the use of the Tower as 207 private residential flats (Class C3) and Skybar (ancillary to adjacent Class C1), the south podium and part of tower as an arts/ cultural facility (Class D1) and the north podium and Y buildings as a 150 bedroom hotel (Class C1) with restaurant, bar and cafe at ground floor level. Use of roof of podium building as a terrace with associated alterations, NAMELY to allow changes to list of approved plans for internal and external amendments to accommodate an increase in number of hotel bedrooms from 150 to 232, complete demolition and rebuilding of the prow to allow for reconfiguation of arts/cultural facility, amendments to the residential mix/layouts in the Tower, re-configuration of basement car parking, adjustments to landscaping and associated alterations.

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.

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).

Amendments to planning permission dated 5th May 2021 (RN:20/03389/COFUL) for Demolition of existing car park and redevelopment to provide a 4-storey block of sheltered residential dwellings (Use Class C3) and other associated works, including amenity space, car parking, cycle parking, refuse storage, and landscaping improvement works. Namely, amendments to the main entrance including the removal of a column adjacent to the main entrance; changes to windows and exit doors in order for compliance with AD Part B; addition of a new pedestrian exit door to the south elevation to Hall Place; addition of a cleaners store to the ground floor plan to provide storage and a sink for Westminster City Council to maintain the communal areas of the building; installation of air bricks to all elevations; raising of mansard window cills; updated roof layout including updating the layout of the photovoltaic panels and the omission of the mansafe system in favour of a fixed rooftop balustrade; incorporation of a fire corridor to all the apartments; alterations to the internal room sizes and 4 of the 20 units will be designed to full Part M4(3) Wheelchair User standards and be fully wheelchair accessible, changes to EVCP layout and insertion of louvres to the facades .

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)

Variation of condition 1 of planning permission dated 4th October 2022 (RN 22/00448/FULL) for the demolition of the existing hipped roof and construction of a roof extension, a rear extension involving the infill of an existing undercroft area at ground floor, the replacement of an existing link building (between the building fronting Chapel Side and Esca House to the rear) and an additional second floor storey, and the excavation of a basement under the main building, in association with the change of use of the ground and first to residential flats (Class C3). Replacement windows to the front and rear elevations, and the creation of a terrace and green roof on the rear extension roof at third floor level and a terrace at rear fourth floor level. NAMELY, to increase size of basement level and creation of associated lightwell; Alterations to fenestration; relocation and alteration of rear dormers; Internal changes to layout of residential accommodation; and associated external alterations.

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 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.

Amendments to planning permission dated 23 December 2016 (RN: 16/02343/FULL) for: DEVELOPMENT SITE AT 16, 18-25 & 26 PARK CRESCENT & 77-81 PORTLAND PLACE- Demolition and redevelopment of 16 Park Crescent, 18-25 Park Crescent, 26 Park Crescent and partial demolition of 77-81 Portland Place including reinstatement of Grade I listed Park Crescent facade to create [76] residential units and [1910 sqm] D1 floorspace. Creation of [9] new mews properties within rear courtyard at Park Crescent Mews. Car parking and associated servicing, access and landscaping; NAMELY to enable internal alterations to Apartment 49 and Apartment 55.

Refurbishment and replacement of facades and erection of two additional floors and plant enclosure to both Millbank Tower and one additional floor to the Y buildings; excavation of basement levels; demolition of rear car park in association with re-landscaping and reconfiguration of wider site; all in association with the use of the Tower as 207 private residential flats (Class C3) and Skybar (ancillary to adjacent Class C1), the south podium and part of tower as an arts / cultural facility (Class D1) and the north podium and Y buildings as a hotel (Class C1) with restaurant, bar and café at ground floor level. Use of roof of podium building as a terrace with associated alterations.