Planning applications in Marylebone

70 Gloucester Place London W1U 8HP

Waterproofing of underpavement vaults using a cavity membrane system.

12 Manchester Square London W1U 3PP

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.

Halcyon London International School 33 Seymour Place London W1H 5AP

Detailed drawings (scaled sections and elevations) of the stained-glass light boxes & fixing details pursuant to Condition 3 of listed building consent dated 3rd February 2025 (RN:24/08169/LBC)

1 Devonshire Close London W1G 7BA

Erection of a mansard roof extension at second floor level and alterations to the front and rear elevations all in connection with the continued use of the property as a single family dwelling.

8 Marylebone High Street London W1U 4NN

Display of non illuminated hoarding sign measuring 4.14m x 7.02m for a temporary period from 31st December 2025 until 30th June 2026.

1 Marylebone Street London W1G 8JA

Installation of an air source heat pump within the external courtyard at rear lower ground floor level.

39 Manchester Street London W1U 7LJ

Waterproofing of underpavement vaults using a cavity membrane system.

Orbis House 5 Mansfield Street London W1G 9NG

Confirmation that the material change of use from office to use as a single family dwelling house under planning permission (RN 12/09926/FULL) has taken place and that use as a single family dwelling house is now the building's lawful use.

44 Welbeck Street London W1G 8DY

Repositioning of third-floor kitchenette door; Installation of a fire door and associated partition to pavement vault; Reintroduction of window opening between original courtyard and lower ground floor middle room; Installation of wall mounted fan coil until within lower ground floor kitchenette; and Creation of fixed cleaners cupboard within lower ground floor hallway.

8 Bentinck Street London W1U 2BJ

Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08063/FULL)

8 Bentinck Street London W1U 2BJ

Erection of rear extension from lower ground to 1st floor including new plant enclosure with associated plant, green roof and terraces spaces; repairs throughout including entrance steps, paving stones, stairs, plasterwork and floors; damp proofing to vaults and lower ground floor; fire works to doors and floors to improve compartmentalisation; internal configuration including removal of modern partitions to form new WC, tea points and shower room; insulation to roof and lower ground floor walls and floor; and new rooflights and CCTV. (Linked with 25/08064/LBC)

21 Upper Montagu Street London W1H 2PQ

Replacement of single-glazed timber sash windows with slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08056/LBC)

44 Welbeck Street London W1G 8DY

Details of ventilation grilles pursuant to condition 6. ii) of planning permission dated 20.12.2024 (RN: 24/07650/FULL). (Linked with 25/08129/ADLBC)

21 Upper Montagu Street London W1H 2PQ

Replacement of existing non-original single-glazed timber sash windows with new slimline double-glazed timber sash windows to match the original in appearance, detailing and materials. (Linked to 25/08055/FULL)

58 Queen Anne Street London W1G 8HW

Minor internal alterations to the building involving the introduction of double doors at ground floor level between the front and rear rooms.

44 Welbeck Street London W1G 8DY

Details of ventilation grilles pursuant to condition 3. ii) of listed building consent dated 20 December 2024 (RN: 24/07651/LBC). (Linked with 25/08039/ADFULL)

13 Harley Street London W1G 9QG

Detailed drawings of the new double-glazed windows at third and fourth floor levels pursuant to condition 5 (7) of listed building consent dated 29th September 2025 (RN: 25/04782).

69 - 71 Baker Street London W1U 6RB

Installation of replacement window with new single-leaf fire exit door to rear external wall at ground floor level of 69 Baker Street.

22 Shouldham Street London W1H 5FL

Large leaf Crab Apple (rear): Crown reduce the height and spread back to the previous reduction points leaving furnishing growth where possible (approx. 3m height and 1m spread). Reduce any unruly height and spread to balance and shape. Remove dead wood and basal growth.

13 Harley Street London W1G 9QG

Detailed drawings, with a full-size section through the handrail of the reinstated balustrade and handrail to the staircase from lower ground to ground floor level pursuant to Condition 5 (2) of listed building consent dated 29th September 2025 (RN:25/04782/LBC).

13 Harley Street London W1G 9QG

Detailed drawings of the timber screening to the rear of the ground floor terrace pursuant to Condition 10 of planning permission dated 29th September 2025 (RN:25/04781/FULL).

1 Berkeley Mews London W1H 7AT

Amendments to planning permission dated 22nd May 2024 (RN 23/07126/FULL) for: Partial demolition behind partially retained facades, use of 2 Berkeley Mews as office accommodation (Class E) and amalgamation with existing office (Class E) use at 1 Berkeley Mews, associated internal and external alterations, provision of external plant and repair works all in connection with a land use swap with 28 Dorset Street (RN: 23/07147/FULL) NAMELY, to add an additional access conservation rooflight to the rear pitch of the main roof on 2 Berkeley Mews.

Dev Site At 19-35 Baker Street, 88-110 George Street, 69-71 Blandford Street And 30 Gloucester Place London

Detailed drawings and full particulars, including details of sound and odour attenuation measures, of the design, construction and insulation of the system for the extraction of cooking smells for all the restaurant Class E units in the event that these uses are implemented pusuant to condition 13 of planning permission dated 1st Octtober 2021 (RN: 20/06914/FULL).

46 - 48 Upper Berkeley Street London W1H 5QW

Installation of ventilation vents and replacement tiles on the front elevation of the mansard roof; installation of an air brick to the rear elevation of a top floor flat (Flat 6); and other associated works.

Flat 2 70 Gloucester Place London W1U 8HP

Internal alterations including refurbishments; replacement of sound insulation within the floor structure; new kitchen and bathroom fittings; electrical and mechanical systems upgraded; and other associated works.

Development Site At 38-70 Baker Street, 64-66 Blandford Street And 43-45 Dorset Street London

Amendments to planning permission dated 4th April 2025 (RN:22/08200/FULL) for, 'Demolition of the existing buildings and redevelopment above a retained basement to create a mixed-use scheme providing Class E commercial space (retail, restaurants, offices), a community space, and 17 residential units within a new building consisting of ground plus 7 storeys plus rooftop amenity for the commercial, and ground plus 7 storeys for the residential element, improvements to the public realm and pedestrian routes around the perimeter of the Site and along Broadstone Place, consolidated servicing, ancillary plant and storage, cycle parking, and other associated works'; Namely, to amend the wording of Condition 34 (Circular Economy).

45 New Cavendish Street London W1G 9TJ

Internal alterations at ground and lower ground level including reinstatement of staircase. (Linked with 25/07901/FULL)

45 New Cavendish Street London W1G 9TJ

Use of part of the lower ground floor for retail purposes (Class E). (Linked with 25/07902/LBC)

Development Site At 38-70 Baker Street, 64-66 Blandford Street And 43-45 Dorset Street London

Detailed site investigation pursuant to Condition 24 (Phases 2 & 3) of planning permission dated 4th April 2025 (RN: 22/08200/FULL)

Flat 1 27 Bryanston Square London W1H 2DT

Installation of secondary security glazing to the existing windows of Flat 1

14 Cavendish Square London W1G 9DB

Alterations including; demolition and alteration to roof structure including the installation of mechanical plant to roof valley above and the provision of a new terrace and associates railing and access arrangement (sliding roof light) to the rear of the main roof, removal of fixed rooflight over central stair; removal of stair from third floor terrace to plant zone at main roof level; installation of replacement roof lights at main roof level; refurbishment of main entrance door, installation of replacement security camera system, alteration to the ground and lower ground floor fenestration facing Deans Mews and facing internal lightwell, installation of replacement windows and doors at rear ground fand first floor level facing Deans Mews elevation and within the internal lightwell, removal of render to lightwell, installation of replacement cover and railings to first floor terrace, installation of onsite greening. All in connection with the use of the lower ground, ground, first and second floor level as a not forprofit museum (Class F1) and use of the third floor as residential flat (Class C3).

14 Cavendish Square London W1G 9DB

Alterations including; demolition and alteration to roof structure including the installation of mechanical plant to roof valley above and the provision of a new terrace and associates railing and access arrangement (sliding roof light) to the rear of the main roof, removal of fixed rooflight over central stair; removal of stair from third floor terrace to plant zone at main roof level; installation of replacement roof lights at main roof level; refurbishment of main entrance door, installation of replacement security camera system, alteration to the ground and lower ground floor fenestration facing Deans Mews and facing internal lightwell, installation of replacement windows and doors at rear ground fand first floor level facing Deans Mews elevation and within the internal lightwell, removal of render to lightwell, installation of replacement cover and railings to first floor terrace, installation of onsite greening. Internal alteration and refurbishment throughout.

2 Wallenberg Place London W1H 7TN

Display of LED illuminated menu box measuring 0.50m x 0.76m on front boundary railings.

41 Devonshire Place London W1G 6JY

Details of fall arrest system, Fan lights and External doors pursuant to condition 4 of planning permission dated 28th July 2025 (RN: 24/08953/FULL).

41 Devonshire Place London W1G 6JY

Details of the fall arrest system at main roof level, including a roof plan showing fixing locations and details of the height of any fixing points above the roof surface pursuant to partial discharge of condition 8(a) of listed building consent 28 July 2025 (RN: 24/08954/LBC).

13 Homer Row London W1H 4AW

Replacement 1.2m high pedestrian and vehicular gates with 2.6m high pedestrian and vehicular gates.

Flat 4 3 Nottingham Street London W1U 5EG

Partial demolition of internal walls to reconfigure kitchen, bathroom, and living areas; installation of new partitions to form a lobby separating the entrance and bedroom; and general repairs and upgrades to modernise the existing studio flat.

50 George Street London W1U 7GA

Variation of Condition 9 of planning permission dated 29.06.2023 (RN: 22/08256/FULL) for: Provision of a roof terrace at fourth floor level for use in association with the office (Class E) use, consolidation of plant and associated landscaping works NAMELY, to allow extension of the permitted hours of use for the fourth-floor terrace until 22.00 hours.

41 Devonshire Place London W1G 6JY

Detailed drawings of fan lights pursuant to condition 8(b) of listed building consent dated 28th July 2025 (RN: 24/08954/LBC).

29 Harcourt Street London W1H 4HS

Use of basement and ground floors as residential (Class C3) with associated external/internal alterations, and minor alterations to the existing residential unit at first and second floors. (site includes 29A Harcourt Street) (Linked with 25/07774/LBC)

29 Harcourt Street London W1H 4HS

External/internal alterations and minor alterations to the existing residential unit at first and second floors.(site includes 29A Harcourt Street) (Linked with 25/07773/FULL)

24 Upper Wimpole Street London W1G 6NE

Details of code of construction practice pursuant to condition 10 of planning permission dated 4th November 2024 (RN: 23/08773/FULL)

3 Brunswick Mews London W1H 7FB

Details of appropriate arrangements to secure measures to mitigate the potential increased demand for on-street residents car parking in the vicinity of the site pursuant to condition 3 of planning permission dated 5th February 2025 (RN:24/08126/FULL)

3 Brunswick Mews London W1H 7FB

Details of secure cycle storage for the residential (Class C3) use pursuant to condition 4 of planning permission dated 5th February 2025 (RN:24/08126/FULL)

13 Harley Street London W1G 9QG

Details of the design and location of CCTV cameras pursuant to condition 5 (6) of listed building dated 29th September 2025 (RN:25/04782/LBC)

16 Beaumont Mews London W1G 6EJ

Details of a supplementary acoustic report pursuant to condition 12 of planning permission dated 19th February 2025 (RN 24/03039/FULL)

28 Blandford Street London W1U 4BZ

Use of two areas of the public highway measuring 0.7m x 1.3m and 0.7m x 3.0m for the placing of 3 tables and 6 chairs on Blandford Street in connection with the existing ground floor use.

2A Duke Street London W1U 3EJ

Internal alterations and refurbishment works.

Flat 3 16 Thayer Street London W1U 3JU

Installation of safety railings, decking, lowered section of parapet wall and planter in connection with the use of the flat roof to rear closet wing as a roof terrace (part retrospective)

25 Manchester Square London W1U 3PY

Display for a temporary period of six months of a non-illuminated estate agent board attached to the railings in front of the building at street level and measuring 0.6 x 0.9m.