Planning applications in Westminster, May 2026

9 Cavendish Square London W1G 9DF

Installation of CCTV cameras at Ground Floor; and louvres in place of existing windows at Lower Ground Floor (above existing doorset).

The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR

Details of the interior finishes including details of flooring, decorative scheme, lighting, door furniture, fireplaces and doors, where they are being altered or replaced for all the main rooms within William Kent House including all the ground and first floor rooms (including bathroom pod for Burlington Room), the rooms facing onto the rear garden at basement, the main stair compartment and the Prince of Wales suite pursuant to condition 6 (VII) of listed building dated 12th March 2026 (RN:25/07529/LBC)

10 Greycoat Place London SW1P 1SB

Details of privacy film for rear ground floor windows pursuant to condition 7 of planning permission dated 19 March 2026 (RN: 25/08612/FULL)

25 Gillingham Street London SW1V 1HN

Installation of an extract duct to the rear elevation at 25 Gillingham Street.

All Souls Clubhouse 141 Cleveland Street London W1T 6QG

Installation of vents to internal air to air heat pumps (Linked to 26/02804/FULL)

The Ritz Hotel 150 - 156 Piccadilly London W1J 9BR

Details of doors and door furniture pursuant to condition 6 part VII (partial) of listed building consent dated 23 February 2026 (RN: 25/07529/LBC)

Land Bound By Edgware Rd, Boscobel St, Penfold St, Church St, Salisbury St And Broadley St (including Venables St And Part Of Penfold St) (Sites A, B And C) And Public Highway On Church Street London

Details of Appendix A of Code of Construction Practice pursuant to condition 101 parts (ii) and (iii) of planning permission dated 30 June 2023 (RN: 21/08160/COOUT).

Methodist Church House 25 Marylebone Road London NW1 5JR

Details of appropriate arrangements to secure the following the provision of 3no. Sheffield stands to provide short stay cycle parking on Marylebone Road pursuant to condition 4 of planning permission dated 16th March 2026 (RN:25/08891/FULL)

9 Kean Street London WC2B 4AY

Details of how waste is to be stored, secure cycle storage; pursuant to condition 5 and 6 of planning permission dated 4th November 2025

77 Wigmore Street London W1U 1QE

Installation of one additional retractable fabric awning to existing restaurant shopfront.

Flat 3 Rossetti House Erasmus Street London SW1P 4HT

Details of altered windows (scaled 1:10), including existing detailed drawings marking areas of fabric to be removed/ altered and proposed detailed drawings showing joinery details; pursuant to condition 4(a) of planning permission dated 2nd March 2026 (RN25/03198/FULL)

Flat 3 Rossetti House Erasmus Street London SW1P 4HT

Details of altered windows and floor pursuant to condition 3 of listed building consent dated 17 November 2025 (RN: 25/03199/LBC)

2 Rutland Mews West London SW7 1NY

Installation of an ASHP unit on the roof of the property; replacement of existing glazed roof and white metal louvres with white standing seam metal roof; replacement glass in existing canopy with self cleaning glass and enlarge existing gutter and associated works.

2 Elm Tree Close London NW8 9JS

Installation of 14 solar panels on the flat roof of the house.

Haymarket House 28 - 29 Haymarket London SW1Y 4SP

Details of a completed Appendix A checklist from the Code of Construction Practice, signed by the applicant and approved by the Council's Environmental Sciences Team pursuant to Condition 3 of planning permission dated 15 January 2025 (24/02980/FULL).

73 Clifton Hill London NW8 0JN

T1: Magnolia ? crown reduce by 1-2m, crown thin by 10% (removing internal epicormics), crown lift to 5.2m over road and 2.5m over pavement. T2: Bay ? reduce height by 3-5m (recommend 5m as this would make the tree easier/cheaper to maintain in future), trim sides.

123 Buckingham Palace Road London SW1W 9SL

Variation of condition 12 of planning permission dated 23 May 2019 (RN: 17/07726/FULL) for: Extension of existing office and retail building and associated works to provide additional office floorspace at roof level, use of part of the ground floor for retail use within Classes A1, A3 or A4, part demolition and alterations to the stone facade fronting Buckingham Palace Road and the part removal of the glazed building canopy, alterations to the public realm, creation of high level terraces, alterations to bus facility on Bulleid Way and roof top plant along with highway, landscaping and other works. NAMELY, to allow amendments to operating hours for Unit 01 to allow earlier opening from 8am daily.

26 Westbourne Park Road London W2 5PH

T2: Lime ? crown reduce by approximately 3m back to previous pruning points.

53 Westmoreland Terrace London SW1V 4AQ

Domestic refurbishment, incorporating: a ground floor infill extension with a large sliding window at the rear of the property; an enlarged amenity terrace with rooflight, behind a raised parapet at first floor level; a new single-storey mansard roof extension accessed via a vertically extended closet wing; double-glazing to existing and proposed windows; new French doors and stairs and the removal of the existing basement door within front elevation lightwell.

56 Carlton Hill London NW8 0ES

T1 Sycamore x 1 (Acer pseudoplatanus) This tree has out grown its location blocking light from properties also honey dew is creating a slip hazard for residence of 2 properties. Suggested works: Reduce crown back to previous most recent reduction points (~2.5m) retaining shortened furnishing growth and fine branch structure throughout the crown. Remove epicormic growth to crown break

49 Sutherland Avenue London W9 2HF

T1 - Acer palmatum, pollard to 50% of current size due to peristent complaints about size and light, removing 3 to 4m from branch extents.

78 Chester Square London SW1W 9DU

Detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 6) pursuant to condition 6 and 9 of planning permission dated 17th May 2024 (RN:24/00172/FULL)

3 Chester Square Mews London SW1W 9DS

Details showing the provision of electric vehicle charging facilities, available for use within the garage, detailed drawings (elevations and sections at a scale of 1:10 or 1:20) of the construction and window details of the new dormers to the mews, new garage doors and new window and door to the ground floor mews elevation and details of how waste is to be stored on site and how materials for recycling will be stored separately pursuant to condition 4, 8 and 9 of planning permission dated 23rd January 2025 (RN:24/08100/FULL)

Westminster House 7 Millbank London SW1P 3JA

Samples of the facing materials you will use, including glazing and any replacement Portland stone, and elevations and roof plans; pursuant to Condition 13 of planning permission dated 8 February 2022 (RN 21/01508/FULL)

8 - 10 North Audley Street London W1K 6ZD

Replacement of the existing external escape staircase and rooflights.

25 Blomfield Road London W9 1AA

Details of acoustic enclosure with the details specified in the acoustic report pursuant to condition 5 of planning permission dated 9th August 2022 (RN:22/03737/FULL)

Chatham House 10 St James's Square London SW1Y 4LE

Removal of internal partition wall in the office spaces at the second floor.

Third Floor Flat 135A Hamilton Terrace London NW8 9QR

Detailed drawings (scaled 1: 5, 1: 20, 1: 20 as necessary), including horizontal and vertical sections pursuant to condition 2 of planning permission dated 1st February 2026 (RN:25/09023/LBC)

Sandringham Court 99 Maida Vale London W9 1UA

Details of how waste is going to be stored on the site, details of secure cycle storage for the flats, details of the ways in which you will protect the trees which you are keeping and details of the works to replace the existing footpath, where this is in the root protection areas or beneath the canopy of any trees, including materials, foundations, methods of excavation and any level changes pursuant to condition 4, 8, 9 & 10 of planning permission dated 12th March 2026 (RN:25/02068/FULL)

66 - 68 Westbourne Park Road London W2 5PJ

Erection of a single-storey rear extension, including excavation to provide a basement, together with associated landscaping works.

55 - 59 Oxford Street London W1R 1RD

The removal and replacement of three antennas (top Height at 25.7m AGL), the replacement of 18 ERS units with 12 ERS units. Upgrade of the equipment within the existing cabinet and development works thereto.

Land Bound By Edgware Rd, Boscobel St, Penfold St, Church St, Salisbury St And Broadley St (including Venables St And Part Of Penfold St) (Sites A, B And C) And Public Highway On Church Street London

Details of vehicle access ramp to Site A pursuant to condition 159 on planning permission dated 30 June 2023 (referenced 21/08160/COOUT) and amended by application dated 19 November 2024 (referenced 24/05251/NMA) and added condition 159.

171 Victoria Street London SW1E 5NN

Detailed drawings of a hard and soft landscaping scheme which includes the number, size, species and position of trees and shrubs pursuant to condition 36 of planning permission dated 6th February 2026 (RN:24/07197/FULL)

Arundel Great Court Surrey Street London WC2R 2NE

Details of an Operational Management Statement pursuant to condition 30 of planning permission dated 28th March 2012 (RN:11/05626/FULL)

London Hilton 22 Park Lane London W1K 1BE

Installation of three antennas and associated ancillary development thereto.

171 Victoria Street London SW1E 5NN

Detailed drawings and management plan in relation to the green roofs and green walls to include construction method, layout, species, maintenance regime, substrate depth, and substrate type pursuant to condition 35 of planning permission dated 6th February 2026 (RN:24/07197/FULL)

29D Porchester Square London W2 6AN

Internal alterations and refurbishment.

25 Blomfield Road London W9 1AA

Details of the colour to be used to the acoustic enclosure; pursuant to condition 6 of planning permission dated 9th August 2022 (RN 22/03737/FULL)

32 Acacia Road London NW8 6AS

Alterations to lower ground floor, part ground floor and part basement level at existing house.

Hallfield Primary School Porchester Gardens London W2 6JJ

T010 (Thuja plicata)- Fell tree to ground level or to around 0.5m above ground level

Flat 7 37 Chesham Place London SW1X 8HB

Installation of metal railings and replacement of window with door in association with use of front second floor flat roof as a terrace (Lowndes Place elevation). (Linked with 26/03252/LBC)

Flat 7 37 Chesham Place London SW1X 8HB

Installation of metal railings and replacement of window with door in association with use of front second floor flat roof as a terrace (Lowndes Place elevation) (Linked with 26/03251/FULL).

5 Abbey Road London NW8 9AA

1 x lime (T3, front): crown reduce by approx. 2m, to suitable secondary growth; retaining furnishing and a naturally balanced canopy outline. Reduce roadside limb (at about 9m) by about 2.5m.

3 Abbey Road London NW8 9AY

3 Abbey Road: 1 x horse chestnut (T1, front): crown reduce to previous, most recent reduction points, retaining shortened furnishing growth and at least 50% of fine branch structure to maintain crown continuity. 1 x wingnut (T2, front): Crown reduce by approx. 2m, to suitable secondary growth; retaining furnishing and a naturally balanced canopy outline. Crown lift to give 3m clearance from ground level, by shortening lowest branches. 5 Abbey Road: 1 x lime (T3, front): crown reduce by approx. 2m, to suitable secondary growth; retaining furnishing and a naturally balanced canopy outline. Reduce roadside limb (at about 9m) by about 2.5m.

Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

Replacement of existing front elevaiton sash windows with slimline double-glazed heritage units together with minor repair and redecoration of existing facade and existing front doors; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03247/FULL)

Basement And Ground Floor Masionette 3 Upper Brook Street London W1K 6PA

Replacement of existing front elevation sash windows with slimline double-glazed heritage units; replacement of windows and doors in rear modern extension and internal lightwell along with formation of a new window opening. (Linked with 26/03248/LBC)

1A Alexander Mews W2 5NX

Installation of a new roof terrace with associated acoustic barrier privacy screens & conservation railings painted black.

The National Gallery Trafalgar Square London WC2N 5DN

Refurbishment works to the Galleries 30 and 31 in the Wilkins Building of the National Gallery including removal of the existing floor grilles and replacement with new cast-iron grilles flush to the adjacent floors, to match adjacent gallery spaces, removal of the existing modern timber floor in Gallery 30 and replacement in new timber boards to match adjacent galleries, refurbishment of remaining floor finishes and stone skirtings, renewal of fabric wall coverings, redecoration of the plaster cornice and coving based on the original design, introduction of extract ventilation at high level within the clerestory, requiring adjustment of modern glazing, introduction of new plant in the rooftop R184 plant room and associated ductwork within the existing roof void for supply and extract ventilation and air conditioning, external wall insulation within the Orange Street loading bay to the north wall of Gallery 31, replacement of existing internal louvres with external solar shading fins, modifications and extension of the existing 1980s over-roof structure and replacement of the existing glazing in the over-roofs, replacement of existing lead walkway to perimeter of roofs with new roof membrane, new guarding at roof level, adjustments to gallery lighting internally and new environmental lighting within the roof void, new external metal gantry at the north wall for access to plant equipment. (Linked to 26/03249/FULL)

The National Gallery Trafalgar Square London WC2N 5DN

Introduction of extract ventilation at high level within the clerestory, requiring adjustment of modern glazing, introduction of new plant in the rooftop R184 plant room and associated ductwork within the existing roof void, external wall insulation within the Orange Street loading bay to the north wall of Gallery 31, replacement of existing internal louvres with external solar shading fins, modifications and extension of the existing 1980s over-roof structure and replacement of the existing glazing in the over-roofs, replacement of existing lead walkway to perimeter of roofs with new roof membrane, new guarding at roof level, new external metal gantry at the north wall for access to plant equipment. (Linked to 26/03250/LBC)

78 Chester Square London SW1W 9DU

detailed drawings (sections and elevations at a scale of 1:10 and/or 1:20) of the new windows and doors (to be annotated to correspond to rooms and floor level) and detailed drawings of section drawing (scale of 1:10) through the mansard showing the dormer window and shoulder of the mansard (see informative 3) pursuant to condition 3 (A), 6 of listed building dated 17th May 2024 (RN:24/00173/LBC)