Amendments to planning permission dated 24 January 2023 (RN: 22/07450/FULL) for formation of a new roof terrace to serve existing flats, including new railings, timber screening, openable sliding rooflights, existing lift overrun enclosure extended to allow for a new internal staircase, alteration of existing extract vent, roof slate at lower roof level replaced, replacement timber double glazed windows including blocking in a window and the formation of new windows to suit the reconfigured internal layout, replacement residential entrance door, 2 new air source heat pumps (ASHP) at roof level, trellis with planting and green roof; NAMELY, to vary the type of rooflight, to provide an alternative access from the top floor residential unit to roof level including new door, to adjust the position of the proposed AOV and to vary the position of two of the lead dormers.

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 16 September 2022 (RN: 22/04831/FULL) for 'Use of building as residential (Class C3); internal reconfiguration to create 2no. 3bed residential flats; replacement of all windows with slim-lined double glazed sash windows to match existing profiles; replacement external doors to main entrance and lower ground floor lightwell entrance; installation of air conditioning units at lower ground floor and third floor levels; refurbishment of front and rear facade to include rationalisation of pipework and wiring; new raised roof to rear lower ground floor wing; installation of green roof to first floor flat roof and new glazed sliding doors to lower ground courtyard elevations'. Namely, to revise layout of PV panels on south facing roof slope.

Amendments to planning permission dated 1st August 2017 (RN: 16/08454/FULL) for demolition of existing building and redevelopment to provide a new building comprising basement, ground and six upper floors. Use of basement, ground and first floors for restaurant purposes (Class A3), with ticket booth (Class A1) at ground floor level to Cranbourn Street. Use of upper floors as nine self-contained residential flats. NAMELY, amendments to the approved plans under Condition 1 and to the description of development.

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)

Amendments to planning permission dated 12th January 2016 (RN: 14/10918/FULL) for erection of a building including excavation works to provide three basement storeys and six above ground storeys for mixed use purposes including up to 79 residential units, retail shops, restaurants, multi-purpose community hall, community space, cycle and car parking, servicing, landscaping, plant and other works. (Site also known as Moxon Street Car Park) NAMELY, to move the entrance to the health club from Aybrook Street to Cramer Street; alterations to the private residential entrance to enable the route through to the courtyard to be externalised; the introduction of three small fixed roof lights at roof main level; internal layout changes to one apartment at fourth floor and one apartment at fifth floor.

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 08.06.2022 (RN: 21/07082/FULL) for, 'Alterations to 6 Charles Street to include the erection of a single storey mansard roof extension and changes to the fenestration on Hays Mews elevation, partial demolition and rebuilding of 1 Hay's Mews and amalgamation with 6 Charles Street; all to enlarge existing flats (Class C3). Creation of a courtyard at rear ground floor level of 1 Hay's Mews and a terrace to the rear of 6 Charles Street at fifth floor level, installation of green roof areas to the main roof of 1 Hay's Mews and the rear of 6 Charles Street at part fifth floor level'. [SITE INCLUDES 1 HAY'S MEWS]. Namely, internal alterations to the apartment layouts; alterations to the front elevation of 1 Hays Mews; inclusion of new service risers; alterations to the entrance door and fanlight of 6 Charles Street; amendments to the window fenestration to both the mews internal lightwell and the Hays Mews return elevation of 6 Charles Street; alterations to building materials; cleaning of facades; inclusion of rooflight to the mews roof; inclusion of a mansafe system to the green roof areas; installation of a smoke extract vent over the main stair at roof level.

Amendments to planning permission dated 16th March 2020 (RN:19/03844/FULL) for Variation of condition 1 of planning permission dated 21 December 2017 (RN: 17/00938/FULL) which itself varied Condition 2 of planning permission dated 2 November 2003 (RN: 02/06302/FULL) for the: Demolition of existing buildings and erection of residential building of 6-8 storeys comprising 66 apartments including 17 affordable units and provision of 64 parking spaces in two basements. Namely, to relocate existing parking spaces and deliver a wellness centre comprising: gym, sauna and steam, massage and changing rooms at lower ground floor level -2, pool room, lounge, self-service bar and cinema at lower ground floor level -1; and associated facilities.