Planning applications in Marylebone

53 - 55 Weymouth Street London W1G 8NJ

Alterations to windows on the Westmorland Street frontage to match the windows on the Weymouth Street frontage.

3 Marylebone High Street London W1U 4NG

Display of an internally illuminated (letters only) fascia sign measuring 2.61m x 0.235m.

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

Removal and reinstatement of street trees to facilitate construction, and associated works.

1 Nutford Place London W1H 5YZ

8 x London Plane (G1): Reduce by 2-3m in height and width to previous points of reduction

68 Upper Berkeley Street London W1H 7QY

Electrical upgrade works to communal areas and works to the vault

41 Manchester Street London W1U 7LN

Windows condition methodology statement and detailed drawings of all new replacement windows and glazing pursuant to Condition 10(a)(i) and (ii) of planning permission dated 8 April 2025 (Ref: 24/06665/FULL)

2 Dorset Street London W1U 4EE

Replacement of four existing external condenser units with two external condensor units within new acoustic enclosure. (linked to 25/08797/LBC)

Flat 47 Maybury Court Marylebone Street London W1G 8JF

Replacement of existing single glazed timber framed windows at First Floor Flat 47, Maybury Court with new double glazed timber framed windows.

15 - 16 Montagu Mews South London W1H 7ET

Conversion of the existing ground-floor garage into habitable residential accommodation, replacement of existing windows and doors with double glazing, replacement of existing garage doors with new windows and installation of new rooflights.

112 Edgware Road London W2 2DZ

Display of one new fascia sign located on existing signage zone, measuring 585mm x 3204mm. display of internally illuminated projection sign, measuring 500mm x 600mm; display of new branded awning.

73 - 75 Harley Street London W1G 8QJ

Refurbishment of two consulting rooms by introducing floor to ceiling oak wall panelling, new storage unit, coffered ceilings in lime plaster, downlights and replacement of existing carpet. New storage units in treatment rooms.

106 Blandford Street London W1U 8AG

Details of method statement for the joinery repairs pursuant to Condition 4 (part B) of listed building consent dated 27 September 2024 (24/05115/LBC)

41 Manchester Street London W1U 7LN

Windows condition methodology statement and detailed drawings of all new replacement windows and glazing pursuant to Condition 5(a)(i) and (ii) of listed building consent dated 15 October 2025 (Ref: 25/04417/LBC)

44 Manchester Street London W1U 7LR

Details of method statement for the plasterwork and joinery repairs pursuant to Condition 3 of listed building consent dated 30 September 2024 (RN: 24/04921/LBC)

112 Edgware Road London W2 2DZ

Display of vinyl wrap at shopfront

20 Upper Berkeley Street London W1H 7PF

Replacement of one window to front lightwell and four windows to rear (Linked to 25/09165/LBC)

72 Harley Street London W1G 7HG

Replacement of fire doors at lower ground, ground and first floors.

Methodist Church House 25 Marylebone Road London NW1 5JR

Details of bay studies of each new facade, showing doors pursuant to condition 16 of planning permission dated 20th October 2025 (RN: 25/06227/FULL)

70 Harley Street London W1G 7HF

Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; replacement of fire doors; layout alterations; and associated works. (Linked to 26/00202/FULL)

70 Harley Street London W1G 7HF

Alterations to fourth floor flat, works including replacement of windows with Slimlite double glazing windows; layout alterations; and associated works. (Linked with 26/00203/LBC)

37 Great Cumberland Place London W1H 7TD

Installation of 'iMist' water misting system to residential apartment building.

Garden Enclosure Portman Square London W1H 6LJ

T1 x London plane (T34): Remove one limb to main trunk (limb at approximately 12 m from ground level projecting south west with evident Inonotus bracket).

Winchester House 259 - 269 Old Marylebone Road London NW1 5RA

The proposal requires removal of 6no. antennas (2no. with a top height of 35m AGL, 2no. with a top height 35.67m AGL and 2no. with a top height of 34.3m AGL) and associated ancillary equipment; Installation of 6no. antenna on the existing support poles (2no. with a top height of 35m AGL, 2no. with a top height of 36.67m AGL and 2no. with a top height of 34.2m AGL), and associated ancillary equipment; Upgrade of the equipment within the existing cabin and development works thereto.

70 Marylebone High Street London W1U 5JL

Installation of an external air-conditioning unit within the lower ground floor rear lightwell.

Second Floor 111 Baker Street London W1U 6SG

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 0.45mm x 0.6mm

57A Upper Montagu Street London W1H 1SG

Replacement of two windows on the rear elevation with timber double-glazed sash windows.

51 Harrowby Street London W1H 5EF

Replacement of existing iron railings to the front boundary and painting of front elevation. (Linked to 26/00907/FULL)

Flat 31 Bickenhall Mansions Bickenhall Street London W1U 6BR

Replacement of existing windows to the front and rear elevations of the upper ground floor flat, installation of an air-conditioning plant and screened louvre to the rear balcony, and associated works.

106 Blandford Street London W1U 8AG

Details of method statement relating to the plaster work repairs pursuant to Condition 4a) of listed building consent dated 26th September 2024 (RN: 24/05115/LBC).

32 Crawford Place London W1H 5NN

Use of the public highway for the placing of six tables and 12 chairs in two areas measuring 5.5m x 1.2m and 5.5m x 0.9m in association with the ground floor use.

97 York Street London W1H 4QQ

Change of use of the Lower Ground and Ground Floors from Commercial (Class E) to Residential (Class C3), with associated internal alterations. (Linked to 26/00002/LBC)

97 York Street London W1H 4QQ

Change of use of the Lower Ground and Ground Floors from Commercial (Class E) to Residential (Class C3), with associated internal alterations. (Linked to 26/00001/FULL)

21 Montagu Mews South London W1H 7ES

Infill of existing light well to first floor at the rear, roof alterations including new conservation style roof lights and photovoltaic panels to the rear slope of the roof. Alterations to the front façade including the installation of new double doors with window over and removal metal bar to ground floor windows and installation of double glazed vacuum glazed double glazing within existing window units.

43 Devonshire Close London W1G 7BF

Replacement of existing glazed windowpanes with slimline double-glazed windowpanes to all existing windows, and replacement of existing front door.

66 Harley Street London W1G 7HD

Display of two non-illuminated plaques measuring 0.3m x 0.4m.

56 Upper Montagu Street London W1H 1SN

Use of ground floor and mezzanine levels to rear as residential (Class C3) use; deconversion of ground floor and mezzanine levels to rear together with two studio flats and one one-bedroom flat to form one three-bedroom maisonette; creation of reconfigured office unit in basement; replacement of all but one window with slimline timber double glazed units installation of secondary glazing to one window; renovation of shopfront; reinstatement of glazed fanlight with opening vent, new solid panel door, and awning; new glazed doors to south elevation of mezzanine garden room; new metal balustrading across rear boundary and raised terrace surface level with walk-on roof lights; replacement of concrete roof tiles with slate and new glazed roof light/ roof access; creation of green roof above mezzanine garden room; removal of modern partition walls and reinstatement of historical plan form as far as possible; reinstatement of historic period features all in connection with the use of building as office at part basement level with the remainder of the building being used as a single residential unit (Class C3) and associated internal alterations. (Linked to 25/09343/LBC)

56 Upper Montagu Street London W1H 1SN

Use of ground floor and mezzanine levels to rear as residential (Class C3) use; deconversion of ground floor and mezzanine levels to rear together with two studio flats and one one-bedroom flat to form one three-bedroom maisonette; creation of reconfigured office unit in basement; replacement of all but one window with slimline timber double glazed units installation of secondary glazing to one window; renovation of shopfront; reinstatement of glazed fanlight with opening vent, new solid panel door, and awning; new glazed doors to south elevation of mezzanine garden room; new metal balustrading across rear boundary and raised terrace surface level with walk-on roof lights; replacement of concrete roof tiles with slate and new glazed roof light/ roof access; creation of green roof above mezzanine garden room; removal of modern partition walls and reinstatement of historical plan form as far as possible; reinstatement of historic period features all in connection with the use of building as office at part basement level with the remainder of the building being used as a single residential unit (Class C3) and associated internal alterations. (Linked to 25/09342/FULL)

68 Edgware Road London W2 2EG

Installation of mechanical plant at main and lightwell roof levels.

The Langham 1C Portland Place London W1B 1JA

Installation of a temporary pergola within the courtyard facing Cavendish Place from 1st April 2026 to 30th September 2026

6 Seymour Mews London W1H 6BE

Amendments to planning permission dated 5th September 2024 (RN: 24/02777/FULL) for External alterations, extension at ground floor, excavation to provide new basement, and the installation of an air source heat pump; all to enlarge and alter dwellinghouse (Class C3) namely; to alter the colours of the front ground floor facade elements (the main entrance door, garage door, windows, and rendered lintel).

45 York Street London W1H 1PW

Installation of cavity membrane system to the walls and soffit of the vault.

79 Harley Street London W1G 9HW

Internal alterations at basement and ground floor levels and external alterations including the removal of roof lanterns; installation of new plant within the lightwell at ground floor level and on the flat roof area at first floor level.

43 Weymouth Street London W1G 8NB

Partial demolition of rear roofslope and creation of a concealed roof terrace at rear second floor level. Installation of one rooflight, one external door and one repositioned window.

43 Weymouth Street London W1G 8NB

Partial demolition of rear roofslope and creation of a concealed roof terrace at rear second floor level. Installation of one rooflight, one external door and one repositioned window.

1 Portland Place London W1B 1PR

Removal and replacement of an existing roof plantroom stairway through installation of a new roof plantroom stairway.

45 Manchester Street London W1U 7LS

Details of method statement of repair of the plasterwork pursuant to condition 4 of listed building consent dated 19 June 2025 (RN: 24/04922/LBC)

2 Harley Street London W1G 9PB

Use of Flats 1 & 2 at 2 Harley Street as commercial class E medical use

41 Devonshire Place London W1G 6JY

Installation of Air Conditioning units at No. 41 Devonshire Place. Proposed works include; 1 x Condenser units to one of the vaults, 2 x Condenser units on the roof, with FCU units located in internal principal rooms. (Linked to 25/09208/FULL)

79 Harley Street London W1G 9HW

Variation of conditions 1 and 5 of planning permission dated 31 August 2023 (RN: 23/04631/FULL) for the: External and internal alterations at lower ground, ground and first floor rear flat roof level associated with the installation of a new MR Linac machine at lower ground floor level. Installation of new plant and relocation of existing plant, including a quench pipe within the external area at rear ground floor level and on the first floor flat roof area, the removal of skylight and associated works. NAMELY, to allow internal and external amendments and the installation of additional plant.

6 Upper Wimpole Street London W1G 6LG

Details of first-floor terrace in relation to 7 Upper Wimpole Street, including plans, section and details of screening measures pursuant to condition 8 of planning permission dated 22 May 2025 (RN: 24/06677/FULL)