Planning applications in Marylebone

8 Oldbury Place London W1U 5PG

Construction of a new mansard extension to the existing mews house together with the introduction of a new internal lightwell to basement level and single storey ground floor rear extension.

41 Devonshire Place London W1G 6JY

Reinstatement of the brick arches to the vaults and the reinstatement of the brickwork bridge to the secondary entrance (part-retrospective). (Linked with 25/07573/LBC)

41 Devonshire Place London W1G 6JY

Reinstatement of the brick arches to the vaults and reinstatement of the brickwork bridge to the secondary entrance (part-retrospective). (Linked with 25/07572/FULL)

Brymon Court 31 - 32 Montagu Square London W1H 2LH

Replacement of windows to the front, side and rear elevations with aluminium framed windows.

28 - 32 Aybrook Street W1U 4AW

Display for a temporary period of six months of a non-illuminated estate agent board located on the railings of the building at a height of between 0.8m and 0.03m above pavement level and measuring 0.45m x 0.6m

245 Old Marylebone Road London NW1 5QT

Internal alterations and refurbishment of existing basement into ablution areas and new WCs, and a new plant room.

26 - 27 Devonshire Street London W1G 6PH

Variation of condition 5 of planning permission dated 20th December 2023 (RN:23/07525/FULL) for, ""se of two areas of the public highway measuring 8.3m x 1.5m and 4m x 1.5m for placement of 7 tables, 14 chairs, 2 barriers, 2 bay trees, and 4 planters in connection with the ground floor use" (site includes 25-27 Devonshire Street); NAMELY, to allow the use of the public highway for a further 2 year period. (Application under Section 73).

11 - 13 George Street London W1U 3QJ

Reconfiguration of roof plantroom and replacement of AC units with new air source heat pump technology, variable refrigerant flow air conditioning condenser units.

Basement And Ground Floor 67 Upper Berkeley Street London W1H 7QX

Display for a temporary period of six months of a non-illuminated estate agent board located on the face of the building at ground floor level and measuring 0.45m x 0.6m.

Basement And Ground Floor 67 Upper Berkeley Street London W1H 7QX

Display for a temporary period of six months of a non-illuminated estate agent board located on the railings of the building at ground floor level and measuring 0.45m x 0.6m.

The Wallace Collection Gallery Manchester Square London

The removal of a modern partition, that currently divides two offices so as to create one larger single office.

Flat 4 58 Montagu Square London W1H 2LS

Detailed drawings of the new doors pursuant to condition 3 of listed building dated 11th September 2025 (RN:25/04771/LBC)

93 Harley Street London W1G 6AD

Installation of two external signage plaques

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

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

Basement And Ground Floor 6 - 7 Portman Square London W1H 6NA

Display of two internally illuminated projecting sign measuring 0.75m x 0.75m, 0.18m x 1.23m and two illuminated fascia signs measuring 0.08m x 0.54m.

18 Seymour Street London W1H 7HU

Details of method of waterproofing of the vaults pursuant to Condition 7 of listed building consent dated 8th August 2023 (RN:23/02367/LBC)

25 Upper Montagu Street London W1H 1SA

Replacement of existing external staircase within front lightwell. (Linked to 25/08299/LBC)

10 Nottingham Place London W1U 5ND

Alterations to existing mansard including front extension and changes to materials.

4 Queen Anne Street London W1G 9LQ

Variaiton of Conditon 1 of planning permission dated 18 November 2024 (RN: 24/05063/FULL) for, 'Installation of two air conditioning units at main roof level with associated pipework on the rear elevation, installation of two grilles on the rear wall in the lightwell at lower ground floor level and internal alterations at lower ground and ground floor levels'; Namely, to amend the location of the two items of plant on the roof in addition to amending the specification of the anti-vibration mounts. (Linked with 25/07252/LBC) (Application under Section 73 of the Act).

13 Harley Street London W1G 9QG

Details of a method statement and 1sq.m. sample panel of façade cleaning pursuant to Condition 4 of planning permission dated 29th September 2025 (RN:25/04781/FULL)

28 Blandford Street London W1U 4BZ

Display of one internally illuminated projecting sign measuring 0.16m x 0.6m and three non illuminated other signs measuring 0.147m x 0.711m, 0.196m x 0.947m and 0.147m x 0.711m.

13 Harley Street London W1G 9QG

Details of a method statement and 1sq.m. sample panel of façade cleaning pursuant to Condition 4 of listed building dated 29th September 2025 (RN: 25/04782/LBC)

28 Blandford Street London W1U 4BZ

Alterations to shopfront including new doors; new sash window and other associated works.

Flat 2 5 Bryanston Square London W1H 2DH

Internal alterations including repair, refurbishment and repainting of the windows and french windows; refurbishment of balconies and railings; and other associated works. (Linked with 25/07211/LBC)

29 Marylebone Road London NW1 5JX

Details of a servicing management plan for the education facility pursuant to condition 28 of planning permission dated 25th July 2025 (RN:25/03860/FULL)

4 Queen Anne Street London W1G 9LQ

Installation of one air conditioning unit at main roof level and two grilles within the window in the rear lightwell at ground floor level with associated pipework and internal alterations. (Linked with 25/07255/FULL)

4 Queen Anne Street London W1G 9LQ

Variation of Condition 1 of planning permission dated 22nd November 2024 (RN: 24/05074/FULL) for, 'Installation of one air conditioning unit at main roof level and two grilles within the window in the rear lightwell at ground floor level with associated pipework and internal alterations'; Namely, to allow for repositioning of the plant unit on the roof in addition to providing new higher performance anti-vibration mounts. (Linked with 25/07251/LBC) (Application under Section 73 of the Act).

4 Queen Anne Street London W1G 9LQ

Installation of two air conditioning units at main roof level with associated pipework on the rear elevation, installation of two grilles on the rear wall in the lightwell at lower ground floor level and internal alterations at lower ground and ground floor levels. (Linked with 25/07282/FULL)

13 Salisbury Place London W1H 1FJ

Details of secure by design accreditation pursuant to Condition 10 of planning permission dated 27th March 2025 (RN: 23/08920/FULL).

42 Great Cumberland Place London W1H 7TP

Repair of six vaults and associated works.

Centre Gardens Montagu Square London W1H 2LA

7 x London Plane: (T4, T19, T20, T21, T68, T73): Prune back from building side by up to 2m. Portuguese Laurel (T14): Reduce lateral growth by up to 2m and height by up to 1m. Plum/Ash (T24/T25): Prune each tree to create approx. 1m separation. Plum (T39): Reduce by approx. 1.5 - 2.5m over lawn. Bay (T45): Coppice. Elm (T71): Reduce lateral branches by 1-2m and shape.

Ellerton House 11 Bryanston Square London W1H 2DQ

Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07173/FULL (Retrospective)

Ellerton House 11 Bryanston Square London W1H 2DQ

Replacement of the existing timber pergola over the rear terrace with new. Linked with 25/07174/LBC (Retrospective)

Flat 2 5 Bryanston Square London W1H 2DH

Internal alterations including replacement of windows and French Windows; refurbishment of balconies and railings; and other associated works. (Linked with 25/07257/FULL)

26 Upper Berkeley Street London W1H 7QL

Installation of one air conditioning unit to rear elevation and two dome cameras to front and rear facade.

4 Portman Square London W1H 6LD

Display of internally illuminated (letters only) fascia sign measuring 0.77m x 5.68m and an internally illuminated (letters only) projecting sign measuring 0.75m x 0.75m.

16 Beaumont Mews London W1G 6EJ

Amendments to planning permission dated 19 February 2025 (RN:24/03039/FULL) for excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3). namely, to allow the addition of a condition to the addtiona of a condition allwoing the development to be carried in two phase. for the approved development to be implemented in two phases, with the basement construction deferred to a later stage.

2 Manchester Square London W1U 3PA

Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.

4 Portman Square London W1H 6LD

Replacement entrance door with a new full-height glazed door; replacement of windows 1 and 6 with clear Georgian wired glass; replacement of fascia with new sprayed metal cladding panels and associated works.

16 Beaumont Mews London W1G 6EJ

Variation of Conditions 1 of planning permission dated 19th February 2025 (RN: 24/03039/FULL) for, 'Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; NAMELY, to allow the retention of the garage space together with associated amendments to the internal layout and external openings; omission of approved lightwell from the ground to basement level; alterations to fenestration to the front and rear elevations, and relocation of roof level plant. (Application under Section 73 of the Act).

2 Manchester Square London W1U 3PA

Proposed infill of rear lightwell with walk-on, fire rated rooflights. Removal of the existing metal grill covering the lightwell; Infilling the lightwell at ground floor level to create an internal space; Installation of walk-on rooflights flush with the surrounding deck to allow daylight into the lower ground floor; Associated internal works to integrate the new structure, including provision for mechanical ventilation where required. New air handling unit to service rear room which has now become internal. Extended ventilation to service void under the suspended timber floor; Replacement of existing lead roof section on the ground floor, on a small corner adjacent to the bay window; Additional insulation to the rear lightwell floor slab, as this space will become internal; Revised floor build-up to the lower ground floor, rear extension room following discovery of the gridded masonry structure below the existing concrete slab.

23 Montagu Square London W1H 2LF

Details of acoustic enclosure to new mechanical plant at roof level (including detailed drawings and specification of colour and materials) pursuant to Condition 3 of listed building consent dated 7th May 2025 (RN:25/01297/LBC).

23 Montagu Square London W1H 2LF

Details of acoustic enclosure to new mechanical plant at roof level (including detailed drawings and specification of colour and materials) pursuant to Condition 6 of planning permission dated 7th May 2025 (RN:25/01296/FULL).

Fitzhardinge House Portman Square London W1H 6LH

Details of the sun pipes, how the kitchen Flat 63 the bathrooms at seventh floor will be mechanically ventilated, how the rooflights to the master bedroom and associated en-suite of Flat 64 will be controlled by the occupants of this flat, how the motor controlling the retractable rooflight serving Flat 64 will be relocated to the side of the rooflight and the rooflight remain able to slide back and forth controlled by the occupants of Flat 64, pursuant to Condition 8 of planning permission dated 10 January 2023 (RN: 21/08177/FULL)

27 Manchester Street London W1U 4DJ

Internal alterations to include the installation of new internet cabling, repair work to joinery and plaster, and removal of paint from cornicing within the entrance hall and repairs. Replacement of damaged glass to the front entrance door and internal arch adjacent to the basement flat entrance door.

10 Nottingham Place London W1U 5ND

Installation of two external air source heat pumps located behind the parapet walls at fourth-floor level.

Crofton House 1 New Cavendish Street London W1G 8US

Refurbishment works to flat 7 the existing flat including formation of new kitchen and bathroom including removal of section of internal partition, replacing existing non-original internal doors, secondary glazing to existing windows and refurbishment of existing windows, installation of new heating system and new joinery. Installation of new insulated roof covering to existing roof. (Linked to 25/07064/FULL)

Crofton House 1 New Cavendish Street London W1G 8US

Refurbishment works to flat 7 the existing flat including formation of new kitchen and bathroom including removal of section of internal partition, replacing existing non-original internal doors, secondary glazing to existing windows and refurbishment of existing windows, installation of new heating system and new joinery. Installation of new insulated roof covering to existing roof(Linked to 25/07065/LBC)

1 New Quebec Street London W1H 7DD

Installation of secondary glazing, installation of kitchenette to ground floor, waterproofing works to underpavement vault.