Variation of condition 1 (and in turn condition 9) of the planning permission dated 21st December 2021 (RN:21/03579/FULL) for the Erection of a single storey roof extension above the existing circular parapet to provide one self-contained flat (Class C3) with associated roof terrace. Namely, extend the front terraces on both sides of the consented extension to the front of the building.

Variation of Condition 1 of 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, the reduction of roof level massing to the rear, installation of guttering above fifth floor and introduction of roof pitch increasing the height of the fifth-floor façade by 250 mm; removal of external basement to ground floor stair to the rear, revised canopy design to the front, revised signage design to left of canopy, addition of three external wall lights at ground level, new planters at ground and terrace levels, revised Crittall style window arrangement, spandrel panel at front facade to incorporate vertical detailing to match mullions, change in location of bike racks, reduction of window sizes to east and west lightwell infills and introduction of grilles at eastern infill, and proposed reduction in rooflight to east and west infill extension. (Application under Section 73 of the Act).

Variation of conditions 1 and 5 of planning permission dated 19th September 2023 (RN:23/01936/FULL) for the variation of conditions 1 (approved plans), 4, 7 and 11 of planning permission dated 10th June 2022 (RN:21/07603/FULL) for the Excavation of basement beneath footprint of building and new side extension, replacement side extension at increased height plus addition of window and balcony, erection of new single storey side extension, replacement doors to rear and creation of window to side (north side), infill extension in part of front lightwell and installation of external stair in front lightwell, installation of plant equipment in front lightwell and rear garden and associated alterations. Namely, to rear elevation, revised window (wrap around skylight) on extension and omission of terrace that previously approved, installation of contrast metal sheeting separating window/door. To left side elevation, installation of 2 frosted glass windows on second floor, one window on upper ground to rear/side extension serving secondary staircase, new grill at base for services ventilation. Revised skylight design to kitchen extension and removal of green roof. To right side elevation, installation of an upper ground floor full-height window, proposed frosted glass second floor window, roof plan, previously approved skylight design omitted in lieu of existing arrangement.

Variation of condition 2 of planning permission dated 19th November 2018 (RN: 18/08691/FULL) for the Temporary use for five years of the retail unit (A1) within part of ground floor of Block C of West End Gate to be used as a sales and marketing suite (Sui Generis). Namely, to extend the temporary permission for a further 4 years.

Variation of condition 1 of the planning permission dated 20 June 2013 (RN:12/09687/FULL) for the Use as nine residential flats (Class C3) and external alterations, including excavation of extended basement floor, erection of replacement rear extensions, formation of roof terraces, replacement of mansard roof extension and installation of mechanical plant at roof level to No.73, alteration and replacement of external railings and new windows and doors ; Namely , amendments to the layout and areas of residential demises and internal circulation strategy; Installation of sprinkler; Alterations to rooftop and basement plant layout and installation of plant to second floor terrace; Alterations to waste storage arrangements; and expansion of green roof at third floor level. (Linked to 23/00772/LBC)

Variation of condition 1 of planning permission dated 6th June 2023 (RN 23/00698/FULL) for the erection of single storey roof extension to rear courtyard building, replacement windows, installation of railings around a new front lightwell and associated works, all for use of enlarged building as 6 self-contained residential dwellings comprising 5 x1 bedroom and 1 x 3 bedroom units (Class C3). NAMELY, for a new lift to serve the residential flats; and new connecting ramp, which would link the front and rear buildings to provide level access.

Variation of condition 1 (approved plans) of planning permission dated 13th March 2023 (RN:22/07095/FULL) for the Erection of single storey rear extension at lower ground floor level. Namely, alterations to the design of the rear extension.

Variation of condition 1 of planning permission dated 04 March 2021 (RN: 20/05720/FULL) which itself varied condition 1 of planning permission dated 28th February 2020 (RN: 19/06301/FULL) for, 'Use of 22 Grosvenor Square, 43 North Audley Street and 1 Lees Place as a hotel, restaurant and private members club/bar (Sui Generis), with works including the infilling of the alleyway to the rear of 43 North Audley Street, partial demolition and rebuilding of 43 North Audley Street to provide a building of two storeys plus mansard, erection of a two storey extension to the rear facade of 1 Lees Place, including the extension of the basement floor to the front facade; installation of plant, the creation of a terrace at roof level of 22 Grosvenor Square and associated internal and external alterations'; NAMELY, changes to roof top plant, low-level plant enclosure at northern extent of level 5, inclusion of an emergency plant noise condition, and addition of attenuated louvre with decorative screening to the refuse store doors to ground floor in Lees Place. (S73 application)

Amendments to planning permission dated 5th September 2022(RN:21/04272/FULL) for Variation of condition 1 of planning permission dated 4th December 2020 (RN 20/02024/FULL) for the Seven-storey rear courtyard extension of the existing office building at the basement, ground, first, second, third, fourth and fifth floor levels; a two storey extension on Harewood Avenue at 7th and 8th floor level and an extension to the Harewood Row/Lisson Grove elevations at third, fourth and fifth floor level for additional office space (Class B1), comprising the relocation of the existing mechanical plant and services; change of use of the existing office space (Class B1) to flexible retail space (Class A1/B1) at part basement, part ground floor at the corner of Harewood Avenue and Harewood Row; upgrade works to the existing entrances along Harewood Avenue and Harewood Row; refurbishment of the existing vehicle entrance on Lisson Grove including an enclosed loading bay; reconfiguration of car parking and cycle parking at the basement level; and the introduction of planting and landscaping to the existing entrance on Marylebone Road. Namely, to allow for minor changes to the canopy, lighting, materials, AOVS, MEP and Loading Bay Doors

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.