Planning applications in Westminster, September 2026

76 Westbourne Park Villas London W2 5EB

Provision of a sauna building within garden area.

First Floor Flat 2 18 Ennismore Gardens London SW7 1AA

Replacement of single glazing with double glazing within existing window frames; internal alterations and refurbishment. (Linked with 26/06429/FULL)

First Floor Flat 2 18 Ennismore Gardens London SW7 1AA

Replacement of single glazing with double glazing within existing window frames. (Linked with 26/06430/LBC)

51 Upper Montagu Street London W1H 1FQ

Details of Desktop study and Site investigation reports pursuant to partial discharge of Condition 11 (Phase 2 and Phase 3) of planning permission dated 24th October 2025 (RN: 25/03874/FULL).

107 Long Acre London WC2E 9NT

Display of an internally illuminated (backlit letters only) projecting sign measuring 0.60m x 0.77m on the Neal Street elevation. [Split decision].

81 Jermyn Street London SW1Y 6JF

Details of the facing materials and detailed drawings of the new windows and spandrel panels pursuant to conditions 4 and 5 (partial) of planning permission dated 30th October 2025 (RN:24/03521/FULL)

134 George Street London W1H 5DN

Details of manufacturer's specifications of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located, detailed drawings (scale 1:10 and 1:5) of the entrance canopy pursuant to condition 4 and 5 of planning permission dated 14th August 2025 (RN: 25/04110/FULL). [Split decision with 26/06935/ADFULL]

9 Cavendish Square London W1G 9DF

Installation of louvre grille in place of existing above-door glass panels on the lower ground floor.

47B Welbeck Street London W1G 9XN

Alterations to the existing building comprising the provision of dual Office (Class E(g)(i)) and Healthcare (Class E(e)) accommodation from lower ground to third-floor levels; installation of external plant and enclosure at roof level; installation of slimline glazing to existing windows at lower ground, second and fourth floors; replacement of existing single-glazed third-floor windows with double-glazed units; removal of roof hatches and installation of a rooflight and service opening; and alterations to the lower ground floor lightwell.

25 Grove End Road London NW8 9BP

G1-4 x Black Poplar, circa 19m tall, previously pollarded to 10m in height (severe cutback), reduce height and spread by 4m from all branch extents to control height and spread, pruning back to suitable points of strong growth where possible, trees heights to change from 19m to 15m and widths from 9m to 6m. T1 - Norway Maple, branches in contact with neighbouring building, reduce overhang for 3m building clearance and reshape crown on lawn side for improved shape. T5 - Sycamore, trunk very close to structure, remove minor branches for nearly 1m building clearance. T7 - Sycamore, poor vigour, deadwood in crown, reduce 2 to 3m and reshape, remove deadwood, consolidate crown for improved vigour pruning to points of strong growth. Tree dimensions to change from 14m x 7m to 12m x 5m depending on lenth of retained T9 - Lime, remove deadwood.

Winfield House Outer Circle Regent's Park London NW1 4RT

Ash (T271): Fell

Kings College 160 Strand London WC2R 2LS

Repair and conservation works to five bays of the Portland stone balustrade on the east end of Victoria Embankment elevation, including temporary safety fencing, dismantling and reinstatement of unstable masonry, stabilisation of leaning piers, lime mortar repointing, stone repairs, replacement of defective balusters in matching Portland stone, stainless-steel dowel fixing, localised investigations and DOFF cleaning.

31 St Petersburgh Place London W2 4LA

Amendments to planning permission dated 27th July 2026 (RN:25/08325/FULL) for Full, phased planning application for a single storey roof extension to provide additional office accommodation, together with infill of the rear courtyard to provide additional office accommodation, associated external landscaped terraces, new plant equipment, new external cycle parking, a new building entrance, replacement of windows, and other minor associated external works. Namely, amendments arising from detailed design development comprising: redistribution of end-of-trip facilities; retention and redecoration of the existing St Petersburgh Place entrance, including closure of two recessed lobby windows and like-for-like door replacement; introduction, relocation and conversion of ventilation louvres within existing openings; closure of two courtyard-facing façade doors; internal layout revisions at basement and ground-floor level; and resequencing of works between Phase 1 and Phase 2.

17 Cropthorne Court 20 - 28 Maida Vale London W9 1TA

Duct penetrations and external ventilation terminals to the rear elevation, in association with the internal alterations and refurbishment of 17 Cropthorne Court (Linked to 26/06138/LBC)

37 Harley Street London W1G 8QG

Detailed of the proposed fan coil units and service drawing plans and a method statement in relation to the installation of the intenal and external units pursuant to conditions 3 and 4 of listed building consent dated 18th August 2026 (RN: 26/03518/LBC).

17 - 21 South Audley Street London W1K 2NY

Details of new secondary glazing showing each window type, location, key details and relationship to the existing window and existing historic fabric pursuant to discharge of condtion 6 (part 5) of listed building consent dated 27th September 2023 (RN: 22/05005/LBC).

Prince Edward Public House 73 Prince's Square London W2 4NY

External alterations and refurbishment of the ground-floor public house frontage including the removal and relocation of several existing retractable awnings; replacement of external tiling; reglazing of the existing fanlights; and installation of a new window within an existing bay.

8 Carlos Place London W1K 3AW

Details of all new floor and its relationship with exiting retained flooring, such as floorboards, tiles and stone flags pursuant to condition 6 of listed building dated 16th April 2026 (RN: 25/08816/LBC)

6 - 7 Grosvenor Place London

Display of two non illuminated flags measuring 1m x 2m for Pembroke Club (one from an existing flagpole on Grosvenor Place and one from a new flagpole on Halkin Street).

26 Wilton Row London SW1X 7NS

Installation of a glazed roof over the existing rear (internal) light well and a glazed platform to extend the existing balconies within the lightwell at ground floor level.

33 Clifton Gardens London W9 1AR

Amendments to planning permission dated 3rd September 2024 (RN:24/02389/FULL) for Alterations to windows and doors to the front and rear, addition of rooflight, replacement of external staircase and balustrade to lightwell. Namely, an increase to proposed skylight curb to 470mm to one side and 370mm to the other and change chimney flue material to black finish.

64 Ennismore Gardens London SW7 1NH

Extensions to rear ground and first floor levels; replacement of windows to front and rear elevations with double glazed slimline windows; installation of air source heat pump (Linked with 26/06415/LBC)

64 Ennismore Gardens London SW7 1NH

Extensions to rear ground and first floor levels; replacement of windows to front and rear elevations with double glazed slimline windows; installation of air source heat pump; restoration of stucco detailing to front facade; repair of the rainwater goods; and internal reinstatement works at all levels including new partition walls, doors, floor coverings, skirtings and cornices. (Linked to 26/06414/FULL)

Flat 3 17 Hyde Park Square London W2 2JR

Installation of internal air conditioning; installation of air conditioning within an acoustic enclosure at rear fourth floor level; erection of dormer window to the rear mansard roof; window replacement; replacement of the roof to the first-floor annex & internal alterations. (Linked with 26/06424/FULL)

Flat 3 17 Hyde Park Square London W2 2JR

Installation of air conditioning within an acoustic enclosure at rear fourth floor level; Erection of dormer window to the rear mansard roof; window replacement; replacement of the roof to the first-floor annex & internal alterations. (Linked with 26/06425/LBC)

20 - 21 D'arblay Street London W1F 8EF

Display of non illuminated fascia sign measuring 2.45m x 0.38m

6 - 7 Grosvenor Place London

Installation of a flagpole on the porch to the Halkin Street elevation (Retrospective).

Heddon Street London

Installation and display of non-illuminated vinyl advertisements, and other associated works.

The Royal Institution Of Great Britain 21 Albemarle Street London W1S 4BS

Repair and upgrade works to the Lecture Theatre including replacement of stair nosings, repair and restoration of the historic Japanese wallpaper, repair of the decorative plaster ceiling, refurbishment of lecture theatre doors and ground floor entrance doors, conservation of the copper dome of the cupola, replacement of hoist, reconfiguration of seating, refurbishment of entrance doors to 20 and other associated works.

Flat 5 25 St James's Place London SW1A 1NH

Details of the appearance, including colour, finish (whether matt or reflective), and materials of the pergola and roof structure and detailed drawings of the proposed terrace planting, including replacement shrubs and planters pursuant to conditions 4 and 5 of planning permission dated 13th February 2026 (RN: 25/07461/FULL).

Ebury Gate 23 Lower Belgrave Street London

Details of an updated version of the Whole Life Carbon Assessment pursuant to discharge of condition 7 (A and B) of planning permission dated 5th November 2025 (RN: 24/05141/FULL).

37 - 39 Burlington Arcade London W1J 0QD

Repainting of timber shopfronts.

Ebury Gate 23 Lower Belgrave Street London

Details of a feasibility study for additional PV panels and detailed drawings of additional PV panels pursuant to Condition 23 of planning permission dated 5 November 2025 (RN: 24/05141/FULL).

Christmas Decorations Carnaby Street London W1F 9PB

Detailed drawings of the proposed Christmas displays for the 2026 - 2027 period pursuant to Condition 1 (PART) of Advertisement Consent dated 30th May 2025 (RN: 25/03699/ADV).

6 Carlos Place London W1K 3AP

Replacement of four existing external air conditioning units to rear fourth floor flat roof with four new air conditioning units (Linked with 26/06409/FULL)

1 Victoria Street London SW1H 0ET

Details of samples of facing materials pursuant to condition 24 of planning permission dated 08 November 2024 (RN: 24/00977/FULL).

26 St Marys Mansions St Mary's Terrace London W2 1SQ

Amendments to planning permission dated 01 April 2026 (RN: 25/09249/FULL) for the: Replacement of all timber double-glazed windows at first floor level and installation of new air brick and flue to rear elevation. NAMELY, to allow the addition of A/C grilles to elevations.

6 Carlos Place London W1K 3AP

Replacement of four existing external air conditioning units to rear fourth floor flat roof with four new air conditioning units (Linked with 26/06410/LBC)

The Royal Institution Of Great Britain 21 Albemarle Street London W1S 4BS

Investigative and repair works for water ingress within lecture theatre.

31 Broadwick Street London W1F 0DG

Replacement shopfront. (Linked with 26/06354/ADV)

St Marys Hospital South Wharf Road London W2 1BL

Details of a pre-commencement condition survey of the canal wall, a written scheme of historic building investigation, a conservation strategy, a method statement and tree protection plan, and a demolition logistics plan pursuant to discharge of conditions 11(A), 15(B), 20, 35 and 46(A) of planning permission dated 31st July 2026 (RN: 25/08914/FULL),

Flat 4 8 Upper Montagu Street London W1H 2PB

Replacement of an existing timber single-glazed sash windows with a timber slimline double-glazed sash windows at third floor level. (Linked with 26/06369/LBC)

Flat 1 75 Carlton Hill London NW8 0EN

Erection single-storey rear extension at ground floor level and provision of front and side boundary gates.

Flat 4 8 Upper Montagu Street London W1H 2PB

Replacement of an existing timber single-glazed sash windows with a timber slimline double-glazed sash windows at third floor level. (Linked with 26/06369/LBC)

163 - 167 Praed Street London W2 1RH

Display of (Panel A) non illuminated vinyl graphics measuring 9.813m X 5.85m to the western bank of upper-floor glazing and (Panel B) non illuminated vinyl graphics measuring 9.813m X 5.852m to the eastern bank of upper-floor glazing.

20 Air Street London W1B 5AN

Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment; internal alterations to reconfigure the Level 3 lounge, including new partitions, bar fit-out and associated building services. (Linked with 26/06386/FULL)

20 Air Street London W1B 5AN

Installation of a ventilation louvre within an existing third-floor window opening and associated mechanical ventilation equipment. (Linked with 26/06387/LBC)

59 Great Cumberland Place London W1H 7LJ

Installation of new T-bars between the existing external iron railing bars of the staircase in the front lightwell. (Linked to 26/06179/FULL)

2 Chesterfield Street London W1J 5JF

Details of Conservation Method Statement(s) (CMS), and a structural report,detailing the method to be used for securing, lifting and re-integration into the building of the existing pitched roof structure above third floor level; photograph of a sample of the Yorkstone to be used as paving to the floor of the front lightwell and rear terrace; detailed drawings showing the new windows including: glazing Bbrs, the relationship of the windows to the external wall of the building, the relationship with any rebates present in the wall surrounding the window openings; detailed drawings of the new staircase to the front lightwell of the building; amended front and rear elevation and section drawings showing retention of the existing front stone cornice, new brick cill courses to the front and rear elevations, and fourth-floor windows revised to match the width and alignment of the existing third-floor windows pursuant to discharge of conditions 5, 7, 10 (part) ,11, 12, 13 and 14 of planning permission dated 14th August 2026 (RN: 25/03385/FULL).

Second Floor Flat 163 Portnall Road London W9 3BN

Details of photographs of the facing materials pursuant to condition 3 of planning permission dated 26 August 2026 (RN: 25/09036/FULL)