Planning applications in Westminster, October 2025

12 Carlton Hill London NW8 0JY

Construction of a rear lower ground floor extension, increase width of existing opening between kitchen proposed extension and replacement of the rear patio flagstones.

6 Eccleston Square London SW1V 1NP

Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level, and of the terrace above the 4th Floor and creation of a new roof with a sunk terrace, recessed from both elevations, in the middle section of the roof, insertion of a hinged sky door fit in the roof and creation of an internal stair for accessing the roof terrace, layout improvement of the 4th floor with minor alterations of the bedrooms configuration and the enlargement of existing bathroom, with the provision of a skylight about the bath/ shower area, vertical extension of the existing cantilevered rear extension, with the creation of a new rear extension volume above, partially covering the existing rear extension, housing a shower area and improvement of existing WC on the landing in between the 3rd and 4th floors; layout optimization of the 3rd floor and renewal of the existing modern double-glazing windows with new like to like timber, slim line double glazed conservation windows and installation of ASHP heat pump. (Linked to 25/07422/FULL)

Pegasus House 37 - 43 Sackville Street London W1S 3EH

Detailed drawings (scales 1:20, 1:5 and 1:1) of various roof level elements such as the design elements for the 4th floor terrace, 6th floor terrace,7th floor roofs, mansard roofs, zinc cladding, plant screen and chimneys pursuant to condition 7 of planning permission dated 21st September 2021 (RN: 20/07605/FULL).

80 Piccadilly London W1J 8HX

Installation of a new timber-framed glazed entrance door, new ribbed plaster cladding and Terrazzo tiles within the entrance; setting back existing windows within their current reveals to allow for the installation of new awnings. (Linked to 25/07451/LBC)

80 Piccadilly London W1J 8HX

Display of internally illuminated hanging sign, menu box and metal lettering measuring 0.41m x 0.59m, 0.52m x 0.39m and 0.09m x 0.395m (Linked 25/07434/FULL and 25/07451/LBC)

9 Telford Terrace Churchill Gardens Estate London SW1V 3AE

Relocation of existing rear door from right to left side; insatallation of replacement existing windows to aluminum anthracite windows; alterations to existing cladding to anthracite grey horizontal paneled cladding; and other associated works.

6 Eccleston Square London SW1V 1NP

Full refurbishment of Flat 6 involving the demolition of the existing modern mansard roof and dormers at 4th level, and of the terrace above the 4th Floor and creation of a new roof with a sunk terrace, recessed from both elevations, in the middle section of the roof, insertion of a hinged sky door fit in the roof and creation of an internal stair for accessing the roof terrace, layout improvement of the 4th floor with minor alterations of the bedrooms configuration and the enlargement of existing bathroom, with the provision of a skylight about the bath/ shower area, vertical extension of the existing cantilevered rear extension, with the creation of a new rear extension volume above, partially covering the existing rear extension, housing a shower area and improvement of existing WC on the landing in between the 3rd and 4th floors; layout optimization of the 3rd floor and renewal of the existing modern double-glazing windows with new like to like timber, slim line double glazed conservation windows and installation of ASHP heat pump. (Linked to 25/07423/LBC)

5 - 7 Frith Street London W1D 3JA

Maintenance and repairs to front basement area; new inner tanking to pavement vault; maintenance access stairs to roof. (Linked to 25/07406/LBC)

Pegasus House 37 - 43 Sackville Street London W1S 3EH

Details of dormers pursuant to partial condition 7 (a) of planning permission dated 22 September 2021 2(RN: 20/07605/FULL). (Linked with 25/07525/ADLBC)

Pegasus House 37 - 43 Sackville Street London W1S 3EH

Details of facing materials pursuant to condition 5 (part) of planning permission dated 22 September 2021 (RN: 20/07605/FULL), namely samples of materials for the dormer windows.

41 Elm Tree Road London NW8 9JR

Details of method statement pursuant to Condition 4 of planning permission dated 18 February 2025. (Part Discharge) (RN24/08086/FULL)

Pegasus House 37 - 43 Sackville Street London W1S 3EH

Detailed drawings (at scale 1:20, 1:5 and 1:1) of new windows on Sackville Street pursuant to Condition 7a) (part) of planning permisssion dated 22 September 2021 (RN:20/07605/FULL)

41 Elm Tree Road London NW8 9JR

Details of a method statement explaining the measures you will take to protect the trees on and close to the site pursuant to condition 5 of planning permission dated 27th February 2025 (Part discharge) (RN:24/08047/FULL)

16 Soho Square London W1D 3QH

Removal of the existing fifth storey and replacement with a two-storey upward extension to provide residential floorspace (Class C3) together with facade alterations and additional staircase to the rear fronting Falconberg Mews.

291 Harrow Road London W9 3RN

Details of a desktop study; detailed site investigation and remediation strategy pursuant to Phases 1-3 of Condition 4 Part A (in relation to 291 Harrow Road only) of planning permission dated 9th October 2025 (RN:25/02170/COFUL)

Royal Opera House Covent Garden London WC2E 9DD

Display of Christmas Installation on the Davis Terrace at Royal Opera House measuring 2.2m x 9.5m for a temporary period.

Marylebone High Street London

Display of illuminated Christmas decorations along Marylebone High Street comprising 16 externally projecting installations each measuring 0.9m x 2m attached to lamp posts and 17 cross-street installations each measuring 13.2m x 1.5m for a temporary period from 19th October to the 31st January 2026

18 Mercer Street London WC2H 9QE

Display of non-illuminated public art painted mural measuring 11.4m x 15.1m.

49 Villiers Street London WC2N 6NE

Display of non illuminated projecting sign measuring 0.6m x 0.6m.

First Floor Flat 28 Hormead Road London W9 3NG

Replacement of the existing rear window with a larger double-glazed timber window.

30 Artesian Road W2 5DD

Part demolition of rear ground floor structure to create an outdoor space for the dwelling with new boundary treatment.

Eresby House Rutland Gate London SW7 1BG

Replacement of three entrance doors including sliding doors to the Centre Block; replacement of existing Portland stone wall panels adjacent to the North and South Entrances; modification of entrance steps on north, centre and south block to accommodate four new access ramps; removal of, alterations to and reinstatement of existing handrails to entrances steps; and installation of external lighting associated with the ramps and entrances.

Buckingham Palace The Mall London SW1A 1AA

Internal alterations including repainting, new seating, new suspended ceiling with lighting, new furnishings, and other light refurbishment works to guard catering and dining space

154 New Cavendish Street London W1W 6YN

Erection of full-height rear infill extension to provide additional commercial floorspace at basement and ground floor levels and enlargement of flats on the upper floors.

4 Soho Place London W1D 3BG

Display of one internally illuminated projecting sign measuring 0.7m x 0.595m.

6 Bedford Street London WC2E 9HZ

Installation of a new shopfront, windows and doors onto Bedford Street and Chandos Place and internal alterations at ground and basement levels.

6 Bedford Street London WC2E 9HZ

Installation of a new shopfront, windows and doors onto Bedford Street and Chandos Place.

First Floor To Third Floor Maisonette 408 Edgware Road London W2 1ED

Erection of extensions at first, second and third floor levels, associated with use as 6 x Studios HMO.

115 Clifton Hill London NW8 0JS

Fig (T1): Reduce to previous, most recent pruning points (approx. 1-2m) Magnolia (T2): Fell Crab Apple (T3): Reduce all round by approx. 0.5-1m Liquidambar (T4): Reduce all round by approx. 1-2m

1 Whitehall London SW1A 2DD

Display of one externally illuminated projecting sign measuring 0.9m x 0.8m. (Retrospective)

Sackville House 40 Piccadilly London W1J 0DR

Alterations to the external wall in the rear lightwell including the installation of separate integrated louvres and glazed screening though with the inclusion on Level 01 of a brick band between the glazing and mechanical louvres and including associated internal alterations, adjustment to the staircase risers at basement and ground floor levels, and alterations and inclusion of joinery within the reception area at ground floor level

9 - 10 Floral Street London WC2E 9HW

Use of building as commercial, business and service uses (Class E); external alterations comprising new office entrance, shopfront and replacement windows; installation of replacement plant equipment, PV panels, mansafe system and roof lights.

68 Dean Street London W1D 4QJ

Removal of Condition 5 of the listed building consent dated 7th August 2024 (RN 24/03326/LBC) for the works to under street vaults to include waterproofing, NAMELY to remove the requirement to reinstate the non-original flagstone floor.

Marylebone Telephone Exchange Building 11 Nottingham Street London W1U 5EL

Alterations to four existing windows with new louvre panels on the north facade at first floor level and removal of an existing external duct at second floor level on the south elevation and installation of four cooling ducts

25 - 31 Wellington Street London WC2E 7DD

Display of the enclosure of any roof level plant pursuant to Condition 10 (i) of Listed Building Consent dated 22 June 2023 (RN: 22/07893/LBC) (Linked 25/07390/ADFULL)

1 Hanover Square London W1S 1HA

Detailed written scheme of investigation for a programme of archaeological work pursuant to Condition 4 (a) of planning permission dated 10th October 2025 (RN:25/01558).

Ground Floor To Top Floor 53 Balcombe Street London NW1 6HD

Use of ground to third floors as a single family dwelling house. (Class C3). (Linked with 25/07398/LBC)

31 Caird Street London W10 4RP

Proposed single storey rear extension, replacement windows and internal alterations.

4 Sussex Square London W2 2SJ

Replacement glazing and extending the internal footprint to the existing building line at the rear of the house by extending under the existing overhang created by the terrace above.

10 Browning Close London W9 1BW

1 x Portuguese laurel (T1, rear): Reduce length of all branches to previous points. Thin crown by 20% by removing branches within the crown giving less density.

25 - 31 Wellington Street London WC2E 7DD

Details of the enclosure to roof level plant pursuant to Condition 11 (i) of planning permission dated 22 June 2023 (RN: 22/08028/FULL)

1 Hanover Square London W1S 1HA

Detailed whole life carbon assessment pursuant to condition 30 (a) of planning permission dated 10th October 2025 (RN:25/01558).

Ambassador Court 17 Craven Terrace London W2 3QH

Details of glass balustrading, windows, grey roof cladding, sound insulation measures to minimise noise transmission between the new flat and the existing flats on the fourth floor, secure cycle storage, mitigation of the potential increased demand for on-street residents car parking and vibration pursuant to conditions 5, 6, 7, 8, 10,12 of planning permission dated 10th June 2026 (RN:26/02259/FULL).

London Business School Sussex Place Regent's Park London NW1 4SA

Details of hard and soft landscaping pursuant to discharge of condition 18 (Phase 1, part of the landscaping area) of planning permission dated 19th May 2023 (RN: 22/02484/FULL).

291 Harrow Road London W9 3RN

Details of whole life carbon assessment pursuant to condition 57 (i) of planning permission dated 9th October 2025 (RN:25/02170/COFUL)

8 Sussex Square London W2 2SJ

Garage conversion, including replacement of the garage door with french doors; rear lower ground floor extension; internal alterations; and replacement of the existing rear windows with aluminium windows.

11 - 12 Russell Street London WC2B 5HZ

Use of a three areas of the public highway each measuring 5.98m x 1.16m for the placing of three tables and six chairs; an area measuring 2.9 x 1.3m for the placing of one table, two chairs and one waiter station; and an area measuring 18.8m x 4.2m for decking and the placing of 19 tables, 26 chairs, eight benches, one menu board, 23 planters with screens and four umbrellas with heaters in connection with the restaurant.

291 Harrow Road London W9 3RN

Details of an auditable system of arboricultural site monitoring, site supervision and record keeping pursuant to condition 23, part 1 and in relation to demolition phase only of planning permission dated 9th October 2025 (RN:25/02170/COFUL)

291 Harrow Road London W9 3RN

Details of a habitat management and monitoring plan pursuant to condition 59 of planning permission dated 9th October 2025 (RN:25/02170/COFUL)

291 Harrow Road London W9 3RN

Details of whole life carbon assessment pursuant to condition 57 (i) of planning permission dated 9th October 2025 (RN:25/02170/COFUL)