Planning applications in Marylebone

29 Chiltern Street London W1U 7PL

Installation of external plant within the rear lightwell.

46 Manchester Street London W1U 7LS

Installation of porcelain decking, liquid waterproofing and lead flashing to rear ground floor roof. (linked to 25/08883/FULL)

2 Dorset Street London W1U 4EE

Replacement of four external condenser units with two external units within new enclosure, replacement of existing internal condensers with two internal units and replacement of associated pipework (Linked to 26/00319/FULL)

86 - 100 Edgware Road London W2 2EA

Replacement and installation of new mechanical plant on the roof to rear of the existing store and associated works

27 Manchester Street London W1U 4DJ

Details of glass around front entrance door pursuant to Condition 3 of listed building consent dated 20 October 2025 (RN: 25/07056/LBC)

4 Devonshire Close London W1G 7BA

Details of Whole Life Carbon Assessment pursuant to condition 7 (part 1) of planning permission dated 19 November 2025 (RN: 25/04318/FULL)

20 Manchester Square London W1U 3PZ

Amendments to planning permission dated 04 September 2020 (RN: 20/03854/FULL) for, 'Demolition and replacement of existing fourth floor, demolition of existing plant room, and erection of a single storey roof extension at fifth floor and rear extension at second to fifth floor levels in connection with existing office (Class B1) use, provision of new main office entrance, flexible use of part ground and basement floor for either retail or office use (Class A1/B1), creation of roof terrace at fifth floor level, provision of cycle parking spaces and facilities, roof plant and associated external alterations, including replacement windows'; NAMELY, to reconfigure the basement level shower and cycle parking facilities.

Garden Enclosure Portman Square London W1H 6LJ

T23 - oversize Massaria branch to remove - 15 metres height, easterly orientation, 7 metres long, 150mm diameter T55 - oversize Massaria branch to remove - 14 metres height, southerly orientation, 7 metres long, 150mm diameter T55 - oversize Massaria branch to remove - 10 metres height, northerly orientation, 8 metres long, 150mm diameter T56 - oversize Massaria branch to remove - 16 metres height, westerly orientation, 8 metres long, 200mm diameter T54 - oversize Massaria branch to remove - 8 metres height, southerly orientation, 5 metres long, 170mm diameter

24 Wigmore Street London W1U 2RJ

Relocation of external plant from ground to basement level and associated works. (Linked to 25/08765/LBC)

8 Marylebone High Street London W1U 4NN

Display of one internally illuminated projecting sign measuring 0.45m x 0.85m.

24 Wigmore Street London W1U 2RJ

Relocation of external plant from ground to basement level and associated works. (Linked to 25/08764/FULL)

4 Devonshire Close London W1G 7BA

Details of site investigation (phase 1 - 3) pursuant to condition 9 (part) of planning permission dated 19 November 2025 (RN: 25/04318/FULL)

14 Upper Wimpole Street London W1G 6LR

Details of new windows, secondary stairs and balustrades, cornices, skirting boards, doors and architraves, and floor build ups pursuant to condition 3 of listed building dated 16th April 2024 (RN: 24/00066/LBC).

14 Upper Wimpole Street London W1G 6LR

Details of new windows pursuant to condition 3 of planning permission dated 16th April 2024 (RN: 24/00065/FULL). (Linked with 26/08777/ADLBC). (Linked with 25/08724/ADFULL)

26 Upper Montagu Street London W1H 1RP

Erection of a two storey rear extension and internal reconfiguration of HMO.

Vincent Court Seymour Place London W1H 2ND

Erection of single storey roof extension to create new third floor level to provide 8 self contained units (Class C3) together with the erection of four lift enclosures to the front elevation, refurbishment of the main entrances, replacement windows, provision of roof terraces, bike storage, bin storage and other associated works.

3 Great Cumberland Mews London W1H 7DZ

Conversion of the existing ground-floor garage into habitable residential accommodation; enlargement of the rear window in the existing utility room; and installation of air conditioning unit at rear ground floor patio.

Flat 8 Woodstock House 11 Marylebone High Street London W1U 4NP

Replacement of 5 windows to the rear of the apartment to timber windows.

45 Queen Anne Street London W1G 9JE

Installation of two air handling units within acoustic enclosure, two air-conditioning units, two chiller units, heat recovery unit, ductwork and fans on rear flat roof.

Flat 14 35 Bryanston Square London W1H 2DZ

Confirmation that proposed internal works in support of a comfort cooling system do not require planning permission.

36 Devonshire Place Mews London W1G 6DD

Details and programme of energy efficiency measures, details of sound insulation scheme, detailed schedule and annotated elevation and roof plans, of all proposed materials of external construction, including glazing and detailed drawings of windows and doors (including their method of openability) with elevations, plans and sections pursuant to condition 6, 7, 8, and 9 of the appeal decision dated 27th February 2025 (Appeal Ref: APP/X5990/W/24/3351064)

4 Mansfield Mews London W1G 9NL

Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08604/LBC)

4 Mansfield Mews London W1G 9NL

Replacement of garage door with smaller size door; internal layout alterations; and associated works. (Linked with 25/08603/FULL)

46 Blandford Street London W1H 3HD

External repairs and redecoration to the building including roof repairs, cleaning of masonry, repointing of mortar joints, external timber repairs, and redecoration of previously painted external elements.

Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08566/FULL)

Basement And Ground Floor 45 Welbeck Street London W1G 8DZ

Installation of terrace, roof light, walk-on glazed surface, external spiral access stair, guarding rails, planter and privacy screen, to rear yard infill extension roof area, and installation of 3 external doors and an alteration to an existing external door within the rear lightwell at lower ground floor level. (Linked to 25/08567/LBC)

Flat 1D Block 1 Portman Mansions Chiltern Street London W1U 5AJ

Replacement of single glazed timber sash and casement windows with double glazed timber windows at ground floor level.

57 Harley Street London W1G 8QS

Details of windows, concertina doors and lightwell lift balustrading; biodiversity management plan for green roof; adherance to CoCP; and consultation with London Underground Ltd pursuant to Conditions 4, 6, 7 and 14 of planning permission dated 23 October 2025 (RN: 25/02646/FULL)

59 Great Cumberland Place London W1H 7LJ

Replacement of external basement stair railings with new iron railings.

8 Devonshire Close London W1G 7BA

Replacement of existing second floor with a mansard roof, alterations to fenestration of the front and rear elevations, construction of a new basement level and other associated development (Class C3).

21 Westmoreland Street London W1G 8PN

Display of non-illuminated advertisements on temporary hoarding fronting Westmoreland Street for a temporary period.

85 Blandford Street London W1U 8AD

Infilling of front and rear balconies at third floor level to enlarge dwellinghouse (Class C3) and installation of replacement windows on front and rear elevations.

Pitch 914 Bickenhall Street London W1U 6SF

Installation of kiosk.

57 Harley Street London W1G 8QS

Erection of rear first floor extension with sedum green roof finish and alterations to form door in existing window opening to allow access to first floor roof.

13 Harley Street London W1G 9QG

Details of historic paint analysis and proposed colour scheme pursuant to Condition 5(1) of listed building consent dated 29 September 2025 (RN 25/04782/LBC)

31 Bryanston Square London W1H 2DT

Details of all new doors by type and architraves pursuant to Condition 4 of listed building consent dated 08 September 2025 08/09/2025 (RN: 24/00731/LBC)

Flat 56 Melcombe Regis Court 59 Weymouth Street London W1G 8NT

Replacement of crittal windows with double glazed crittal windows within the mansard roof.

30 Gloucester Place London W1U 8PL

Internal alterations to the ground floor of 30 Gloucester Place comprising the installation of internal partitions, cellular offices, acoustic wall treatments and teapoints; the removal, amendment and reinstatement of existing ceiling rafts, including the integration of lighting and acoustic elements, the laying of new carpet and LVT tiles and the painting of all internal walls, ceilings, skirtings and architraves.

Forset Court Edgware Road London W2 2RD

The proposal requires removal of 3no. antennas and associated ancillary equipment; Installation of 1no. antenna on the existing support pole at a height of 36.1m AGL, 1no. antenna on a new 2.5m support pole at a height of 38.1m AGL, 1no. antenna on a new 2.5m support pole at a height of 37.6m AGL, 1no. 0.3m dish and associated ancillary equipment; Upgrade of the equipment within the existing cabin and development works thereto.

96 - 97 Marylebone High Street London W1U 4RH

Display of one non illuminated fascia sign measuring 0.22m x 1.076 and one non illuminated projecting sign measuring 0.55m x 0.55m.

57 Harley Street London W1G 8QS

Details of brick sample panel pursuant to condition 5 of planning permission dated 23rd October 2025 (RN: 25/02646/FULL).

129 - 137 Marylebone Road London NW1 5QD

Variation of condition 1, 14 & 23 of planning permission dated 12 February 2015 (RN: 21/06044/FULL) for the Variation of conditions 1 (approved plans), 14 (Operational management plan for terraces), 28 (plant screen design) and 30 (Mews design details) pursuant to planning permission dated 13 July 2021 (RN. 20/06929/FULL) for Demolition and redevelopment of the mews building, partial demolition of the 1960s building and roof extension, facade alterations to the 1930s building all in connection with continued Class E use, associated cycle parking, landscaping, servicing area, external terraces, rooftop plant enclosure and associated external works. Namely, amending the height of the terrace screens at Levels 6, 7, 8 & 9 from 1.5m to 1.1m, amending Condition 14 (Part D) so that the planting surrounding these barriers is referred to as up to 1.8m in height, amending condition 14 (Part G) so that the sixth-floor terrace capacity is reduced to 16, rather than 20 as permitted at present and amend the wording of condition 14 and 23.

2 Wallenberg Place London W1H 7TN

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

13 Harley Street London W1G 9QG

Detail of new stone floor on the ground floor front entrance hall, including sample photos and name of the proposed marble pursuant to condition 5 (4) of listed building consent dated 29 September 2025 (RN: 25/04782/LBC).

13 Harley Street London W1G 9QG

Detailed drawings all new chimneypieces pursuant to Condition 5 (5) of listed building consent dated 29th September 2025 (RN:25/04782/LBC).

13 Harley Street London W1G 9QG

Details of floor build-up to the existing timber floor surfaces pursuant to condition 5 (3) of listed building consent dated 29 September 2025 (RN: 25/04782/LBC).

41 Devonshire Place London W1G 6JY

Detailed drawings of the details of insulated and/or fire rated wall linings to the staircase compartment pursuant to Condition 8 (F) of listed building dated 28th July 2025 (RN:24/08954/LBC)

25 Upper Montagu Street London W1H 1SA

Replacement of existing external staircase within front lightwell. (Linked to 25/07358/FULL)

Marylebone Road Public Convenience Opposite Station Approach Marylebone Road London W1U 5AJ

Change of use from public conveniences (sui generis) to a flexible retail/cafe (Class E(a), restaurant (Class E(b), gym (Class E(d) or gallery (Class F.1) use and existing ground floor accessible WC to be converted to storage space for end use.

12 - 14 Harcourt Street London W1H 4HD

Rear window at second floor; raised section of metal railings that enclose the rear roof area at the second floor; and alterations to the metal railings to install glazed panels.