Amendments to planning permission dated 06 February 2020 (RN: 19/08067/FULL) for 'Variation of Condition 1 of planning permission dated 1 October 2019 (RN: 19/06550/FULL) for: Use of part of the ground floor, mezzanine, basement and sub-basement (vaults) as a spa facility (Class D2), installation of plant equipment to the Robert Street elevation and adjacent to the garage entrance in York Buildings. Associated works including excavation of 4 treatment pools at sub-basement level and new brickwork to rear. (Site includes 21 York Buildings).' Namely, internal alterations to spa layout at ground floor level.

Amendments to planning permission dated 21 June 2023 (RN: 23/02625/FULL) for 'Erection of a mansard roof extension to existing house and alterations to front and rear elevations'. Namley, to remove, refurbish and reuse the existing window at ground floor level (WG2.1); to preserve and restore the existing garage doors (DG5.1); to re-use and refurbish the existing hopper and install a new downpipe; replacement of two rooflights with one smaller rooflight at roof level; and internal alterations.

Amendments to planning permission dated 02 February 2023 (RN: 22/08650/FULL) for removal of metal garage roller shutter and fanlight; installation of mews-style faux garage doors, sash window above including another to replace fanlight; NAMELY, alteration to fenestration within confines of consented front elevation amendment that replaces two plain garage doors.

Amendments to planning permission dated 20th March 2021 (RN 20/01550/FULL) for the excavation of a basement beneath the footprint of the original dwelling. Erection of additional mansard roof storey with dormer windows. Alterations to elevation to provide new windows. Merging the two existing flats into a single dwelling house. NAMELY, to change the garage doors. Glass panel replaced by a louvered panel as required by ventilation strategy.

Amendments to planning permission dated 28 October 2021 (21/03507/FULL) for "Replacement windows to front ground floor elevation and installation of a new garage and front door. Alterations to the existing windows on the rear elevation and installation of two new windows/openings. Installation of a new roof light to the front part of the roof and two new roof lights to the rear part of the roof." Namely, to change the finishes on the front elevation: to match the existing brick on the new ground floor facade and paint all windows and doors dark grey.

Amendments to planning permission dated 23 June 2015 (RN:15/00132/FULL) for, 'Excavation beneath footprint of building, rear garden and garage; erection of single storey rear extension at lower ground floor level with external terrace above; alterations and extensions at roof level including creation of roof terrace; excavation beneath pavement vaults; and associated alterations (including plant to rear); all to enlarge dwellinghouse (Class C3)'; NAMELY, to omit the proposed demolition within the party wall with 4 Audley Square, retain the existing lift and alter the internal layout.

Amendments to planning permission dated 4th January 2021 (RN: 20/04646/FULL) for Excavation of a single storey basement; insertion of a lightwell to ground floor level within the existing building; alterations to rear elevation including infill of existing lightwell at first floor level; terrace at second floor level with associated screening; insertion of window and door at second floor level; insertion and reconfiguration of roof level rooflights; and conversion of garage to habitable space namely, to reduce size and quantity of roof lights.

Amendments to planning permission dated 28 October 2021 (RN:21/03507/FULL) for replacement windows to front ground floor elevation and installation of a new garage and front door. Alterations to the existing windows on the rear elevation and installation of two new windows/openings. Installation of a new roof light to the front part of the roof and two new roof lights to the rear part of the roof namely, alterations to windows and doors to front elevation at ground floor level.

Amendments to planning permission dated 23 October 2020 (RN 20/04320/FULL) for alterations to external elevations including new window within coach door opening and reconfiguration of front door and opening, erection of rear extension at first floor, creation of a rear ground floor courtyard and change part of garage space into habitable space, all in association with dwellinghouse (Class C3). NAMELY, replace the dilapidated bituminous felt roof on the top section of the mansard roof with a lead roll roof covering. Replace the slate finish on the rear mansard roof with a lead roll roof covering an additional small rooflight over the stairwell on the flat section of the mansard roof.

Amendments to planning permission dated 19 July 2018 (RN:18/02233/FULL) for, 'Demolition of rear facade of Nos. 96-98 Baker Street and front and part rear facades of No. 14 Sherlock Mews, use of first to fourth floors of Nos. 96-98 Baker Street as eight residential flats (Class C3), amalgamation of flats at first and second floors of No. 14 Sherlock Mews into a maisonette (Class C3), erection of replacement shopfronts to Baker Street facade, erection of replacement rear facade to Nos. 96-98 Baker Street, erection of replacement front facade to No. 14 Sherlock Mews, alterations at roof level, and other associated external alterations'; NAMELY, (i) To allow reconfiguration of the existing garage and 14 Sherlock Mews entrance at ground floor, including the replacement of all doors at ground floor with a unified design and appearance; (ii) Reconfiguration of the internal layouts of 14 Sherlock Mews to at first and second floor levels; (iii) Unify the 14 Sherlock Mews elevation in brickwork of a consistent colour, bonding and character; (iv) Replacement of design of Sherlock Mews windows; and (v) Refurbishments to the front facade of the mews house; and associated works.