Erection of a single storey extension at sixth floor level with a terrace to the rear. Demolition of existing rear lower ground floor extension and erection of an alternate extension in the northern portion of the rear garden with a terrace above. Partial infilling of internal lightwell from first to fifth floor level adjacent to No. 4 Balfour Place to accommodate a lift. External alterations including modifications to the rear fenestration, replacement window and installation of railing detailing to the front elevation, modifications to main entrance portico, alteration to fire access arrangement and associated works. Reconfiguration of existing building, and together with the proposed extensions to provide six residential units (one additional unit) (Class C3).

Amendments to planning permission dated 19 April 2021 (RN: 20/04541/FULL) for Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed. (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET). NAMELY, consisting of the provision of new door height railing gates to the main entrance, new openable railing gates to the eastern side of the main entrance, and insertion of French doors to the eastern ground floor shopfront.

Variation of Condition 1 of planning permission dated 16 February 2017 (16/10409/FULL) for the use of part basement, part ground floor level and first to fourth floor levels and the erection of a mansard roof extension at fifth floor level to provide 14 residential flats (Class C3). Provision of external terraces at rear second, third, fourth floor and fifth floor level. Installation of mechanical plant at fourth and fifth floor level. Lowering of the existing basement vault floor below Andrew's Crosse by 0.5m and installation of new lightwells and railings at basement and ground floor level on the Andrew's Crosse elevation. Associated alterations to windows on the front and rear elevation and associated internal alterations at 116-118 Chancery Lane and removal of part of the external staircase adjacent to 115 Chancery Lane and alterations to the roof profile at rear fifth floor level and relocation of plant; namely, alterations to the size and number of dormers to the rear roof extension serving Flat 4.1 and installation of a new roof access enclosure to the front part of the roof area and insertion of a high level window at basement level.

Variation of Condition 1 of planning permission dated 19th April 2023 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY to install additional plant at rear first floor level and amend the approved enclosure, decorative cladding and green wall. (Application under Section 73 of the Act).

Variation of Condition 1 of planning permission dated 19 April 2021 (RN: 20/04541/FULL) for, 'Erection of an extension at the rear of 18-22 Wigmore Street at first to fourth floor levels and alterations to the rear roof form to allow conversion of the attic space to provide additional residential floorspace for the existing flats (Class C3), including the infilling of an internal lightwell adjacent to 16 Wigmore Street and the installation of a new lift. Alterations at basement and ground floor level including the infilling of a rear lightwell at basement and ground floor levels. Installation of plant within an associated enclosure at rear first floor level with a green roof over and screened plant on a flat roof at fourth floor level to the rear of 22 Wigmore Street. Alterations to the front of the building including new windows, shopfronts and metal railings at ground floor level. All in connection with the dual / alternative use of the basement, ground and first floors as either office (B1) / retail (A1) or a sui generis use comprising piano showroom, office space, new recital room, piano practice rooms and workshop space and use of the second to new fifth floors as 8 residential units comprising 3 x 1 bed; 4 x 2 bed and 1 x 3 bed' (SITE INCLUDES 18, 20 AND 22 WIGMORE STREET); NAMELY, to allow removal and replacement of existing central core and floors (retrospective), minor changes to internal configuration, provision of new entrance gates to permitted railing enclosure at the front, new door height gates to central entrance and new timber painted frames to glazed entrance. (Application under Section 73 of the Act).

Variation of condition 1 of planning permission dated 20th October 2021 (RN:21/06916/FULL) which in itself varies Condition 4 of planning permission dated 20 April 2021 (RN: 20/07835/FULL) for, 'Excavation of new basement level to provide shared ancillary storage for the residential and the Class E (commercial, business and service) space including bin storage, cycle parking, plant and surplus storage lockers etc; extension of the existing fourth floor rearwards and to create a mansard roof form; replacement of existing fifth floor with small extension to the rear (to match the fourth floor below); creation of new sixth floor and new roof level, to facilitate the provision of 4 residential units across second to sixth floor level (with the retained use of lower ground to first floor level as Class E (commercial, business and service) space and shared communal spaces); set back roof plant room and lift overrun, alterations and changes to rear fenestration at all levels, residential balcony at front fifth floor level and new lightwell at rear'; to vary the wording of Condition 4 to afford greater flexibility in the uses that the lower ground, ground floor, first floor and non-residential parts of the basement can be used for under Class E of the Use Classes Order (to allow use for financial/professional services and for health/medical services, as well as offices). (S73 Application). NAMELY, to allow minor internal and external alterations to the consented scheme resultant of continued design evolution and alterations which have become necessary in order to comply with updated Building Regulations and Fire Regulation requirements. (S73 Application)

Amalgamation of 5 flats into a single residential dwelling; rear extension to lower ground floor level and walk on skylight and roof to create a new ground floor level terrace; ground floor wrap around extension with full width sliding glass doors and partially glazed roof; refurbishment and replacement of windows to front and rear elevation; internal reconfiguration on all floors.

Variation of condition 1 (Approved Plans) of planning permission dated 28th April 2020 (RN:19/08283/FULL) for the Variation of condition 1 (approved drawings and reports) of planning permission (RN: 17/11306/FULL) for the Extensions to the existing building at roof, ground and lower ground level in connection with the provision of 961sqm (GEA) Class D1 floorspace and 9 residential flats (Class C3), together with associated parking) from RN:19/08283/FULL. Namely, amendments to the proposed materials including glazed brick to render within the lightwell, curved brick to straight brick to the area of curved elevation, bronze windows to powder coated aluminium windows and slate plinth to dark Portland stone plinth and amendments to the proposed roof including changes to the design of the link corridor roof, structural glass to curtain walling at the link corridor and a raise of the roof level where it must accommodate an existing stone architrave.

Variation of condition 1 of planning permission dated 2nd November 2022 (RN:22/01575/FULL) for the External alterations and extensions to 2-3 Orme Court, amalgamation of 2 Orme Court and basement of 3 Orme Court with 1 and 4-8 Orme Court, internal reconfigurations and refurbishments to facilitate change of use to residential, religious and educational establishment for international community of professionals, students and priests, including en-suite private bedrooms, communal areas, work and study spaces, meeting rooms, library and ancillary spaces (Sui Generis), and mansard extension with associated internal reconfigurations to retained flats at 3 Orme Court (Class C3) from RN: 22/01575/FULL. Namely, reinstatement of original window on western elevation at pavement level, installation of new rear window and balcony on the first floor, reinstatement of original chimney stack, relocation of rear wall of north-east corner of approved second-third floor rear extension, relocation of existing rear window on the third floor of No.2 Orme Court, alteration of new window on the fourth floor of No.2 Orme Court, the reconfiguration of ramp and refuse storage area between 3 and 4 Orme Court to allow alignment with internal levels of 4 Orme Court and increase capacity of refuse storage; and the opening of rooftop access hatch on roof of No.3 Orme Court

Conversion of the existing below pavement vaults, including new windows and doors to front lightwell to provide annexed residential accommodation to flat A, new window to the front elevation, single storey rear and side infill extension. (Linked with 23/02716/LBC)