Planning applications in W1G

24 De Walden Street London W1G 8RN

Amendments to planning permission dated 16th April 2024 (RN:24/00292/FULL) for: Refurbishment of 24 & 26 De Walden Street, including new double glazed windows, replacement of existing rooftop access with extension and outdoor terrace, installation of external air source heat pump and an external store to the underside of the lightwell bridge stair namely, to amend window design to include a small sash horn detail.

6 Upper Wimpole Street London W1G 6LG

Details of methodology for tanking works to vaults, including section through vault tanking and location of drains and pumping equipment pursuant to condition 8 of listed building consent dated 22nd May 2025 (RN: 24/06678/LBC).

Flat 45 2 Mansfield Street London W1G 9NF

Roof extension to the existing mansard roof with associated elevational alterations on the Duchess Street and Rear Elevation, alterations to the existing mansard roof on the Mansfield Street Elevation including a new dormer window and the replacement of the existing external doors, two new rooflights at main roof level, installation of two external air conditioning (AC) condensers at main roof level, replacement of existing rooflights and windows, installation of new external cupboard at terrace level and internal reconfigurations throughout. (Linked with 26/02045/LBC)

Flat 45 2 Mansfield Street London W1G 9NF

Roof extension to the existing mansard roof with associated elevational alterations on the Duchess Street and Rear Elevation, alterations to the existing mansard roof on the Mansfield Street Elevation including a new dormer window and the replacement of the existing external doors, two new rooflights at main roof level, installation of two external air conditioning (AC) condensers at main roof level, replacement of existing rooflights and windows, installation of new external cupboard at terrace level and internal reconfigurations throughout. (Linked with 26/02044/FULL)

45 Wimpole Street London W1G 8SB

Installation of emergency lighting above exit doors (internal side of door only)

Basement Part 10A Chandos Street London W1G 9DQ

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

Flat 4 St Davids House 16 New Cavendish Street London W1G 8UP

Alterations to the uppermost storey of Flat 4, involving the removal of two existing rear dormers and the construction of a single replacement rear dormer, like-for-like replacement of existing roof terrace railings and decking, and internal alterations including the replacement of existing modern kitchen fittings and associated joinery. (Linked to 26/01855/FULL)

Flat 4 St Davids House 16 New Cavendish Street London W1G 8UP

Alterations to the uppermost storey of Flat 4, involving the removal of two existing rear dormers and the construction of a single replacement rear dormer, like-for-like replacement of existing roof terrace railings and decking, and internal alterations including the replacement of existing modern kitchen fittings and associated joinery. (Linked to 26/01857/LBC)

Fourth Floor And Fifth Floor 7 Cavendish Square London W1G 0PE

Installation of single set of French doors to rear elevation. (Linked with 26/01745/FULL)

Fourth Floor And Fifth Floor 7 Cavendish Square London W1G 0PE

Installation of single set of French doors to rear elevation. (Linked with 26/01746/LBC)

64 Wimpole Street London W1G 8YS

Erection of a new roof terrace and green roof area at rear 2nd floor level; installation of plant and photovoltaic panels at main roof level and new mansard roof extension and installation of plant on the mews roof level; alterations at ground floor front elevation; Internal and external alterations throughout the building in connection with a rear elevation extension from first to fourth floor levels and the reconfiguration of the existing fifth floor level, installation of new double glazed windows throughout all in connection with a change of use to Class E (e) medical use.

8 Queen Anne Street London W1G 9LG

Alteration to door ironmongery to two doors removal of 2 pairs of non-heritage door knobs and replacement with battery operated security keypads with integral lever handles.

47 Wimpole Street London W1G 8SE

External repair and maintenance works to 47 to 51 Wimpole Street.

54 Wimpole Street London W1G 8YJ

Details pursuant to condition 5 of listed building consent dated 15th August 2025 (RN:25/02411/LBC).

22 Devonshire Place London W1G 6JA

Display of illuminated fascia sign to Marylebone Road elevation at first floor level measuring 4.9m x 0.82m and non illuminated signs to Devonshire Place elevation at ground floor level measuring 1.05m x 0.92m

4 Devonshire Close London W1G 7BA

Details of signed appendix A pursuant to condition 6 of planning permission dated 19th November 2025 (RN: 25/04318/FULL).

44 Welbeck Street London W1G 8DY

Details of new door and window pursuant to condition 4 of listed building consent dated 16th February 2026 (RN: 25/08107/LBC).

15 Upper Wimpole Street London W1G 6LS

Detailed drawings of the extent of chasing for riser pursuant to part internal part 12 of condition 3 of listed building consent dated 3rd June 2025 (RN 25/00869/LBC)

Flat 49 2 Mansfield Street London W1G 9NF

Replacement of seven windows.

Flat 10 2 Mansfield Street London W1G 9NF

Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01151/FULL

Flat 10 2 Mansfield Street London W1G 9NF

Re-location of previously approved external air conditioning unit at roof level. Linked with 26/01152/LBC

4 Devonshire Close London W1G 7BA

Details of whole life carbon assessment (stage 2) pursuant to condition 7 (partial) of planning permission dated 19 November 2025 (RN: 25/04318/FULL)

17 Upper Wimpole Street London W1G 6LU

Replacement of tiles to front steps (Linked to 26/01068/FULL)

17 Upper Wimpole Street London W1G 6LU

Replacement of tiles to front steps. (Linked to 26/01069/LBC)

14 Devonshire Mews West London W1G 6QE

The replacement of an existing full-width, half-depth rear kitchen/diner extension and the replacement of metal roller shutter garage door to the front with a timber garage door.

24 Upper Wimpole Street London W1G 6NE

Detailed drawings of all new windows including rooflights and external doors drawn at a scale of 1:10 with full size sections through mouldings and glazing bars and the new garage doors (ground floor new fenestration) drawn at a scale of 1:20 with full size details, details of samples of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located, detailed drawings and a bio-diversity management plan in relation to the green roof, details of a sample of the glass (at least 300mm square) and details of how waste is to be stored on site and how materials for recycling will be stored separately pursuant to Cconditions 3, 5, 9, 11, 14 and 16 of planning permission dated 4th November 2024 (RN: 23/08773/FULL)

3 Mansfield Street London W1G 9ND

T1 + T2 = TO POLLARD 2 X LIME TREES CIRCA. 2.0/2.5MTRS LIGHT ACCESS GENERAL MAINTENANCE

2 Cavendish Square London W1G 0PA

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 0.45m.

Flat 4 9 Welbeck Street London W1G 9YB

Confirmation that the existing roof terrace above the fifth floor and its associated access/features, the external air conditioning unit at the rear of the property at fourth floor level, and the PVC windows to the front of the property at fourth and fifth floor levels are lawful.

Orbis House 5 Mansfield Street London W1G 9NG

Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to Condition 6 of Listed Building Consent 05 September 2024 (RN24/01896/LBC)

44 Welbeck Street London W1G 8DY

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

Orbis House 5 Mansfield Street London W1G 9NG

Detailed specifications, and drawings at 1:10 with full size details, of refurbishment works to the windows, and of detailed drawings at 1: 10 with full size sections through the glazing bars of the new sash windows and French windows pursuant to condition 6 of planning permission dated 5th September 2024 (RN:24/01895/FULL)

41 Devonshire Place London W1G 6JY

Replacement of existing sandstone floor finish at ground and lower ground floor levels with Portland stone slabs and slate inset tiles.

Flat 2 New Cavendish Mansions 48 New Cavendish Street London W1G 8TG

Retrofit of existing windows, including insertion of slimline double-glazing windowpanes to front facade.

Ground Floor 23 Wimpole Street London W1G 8GP

Replacement windows, doors and lantern roof and internal alterations (Linked to 26/00832/FULL)

Ground Floor 23 Wimpole Street London W1G 8GP

Replacement windows, doors and lantern roof (Linked to 26/00833/LBC)

11 Marylebone Mews London W1G 8PX

Erection of a mansard roof extension, excavation and extension of the existing basement, installation of plant within a louvered acoustic enclosure on the rear flat roof at second floor and the replacement of the fenestration to the front and rear of the building; all to enlarge and alter dwellinghouse (Class C3).

Flat 7 Crofton House 1 New Cavendish Street London W1G 8US

Internal alterations including blocking up of an existing opening to accommodate two distinct bathrooms.

1 Cavendish Square London W1G 0LA

Display of 1x non-illuminated surface mounted low level sign adjacent to the entrance door measuring 1.2m x 0.9m 1x halo illuminated fascia sign measuring 2.2m x 0.65m and two internally illuminated hanging signs measuring 1m x 0.8m

15 Upper Wimpole Street London W1G 6LS

Detailed drawings/schedules/samples at appropriate scale of works to roofs, including leadwork, slating and retention of slate coping to rear vaulted roof; design of new entrance door and mews doors (to be traditional with collinge hinges); paving specs/sample (lightwells/infills); design and materials of new fanlight, Works to front lightwell and entrance steps and rationalised pipe work pursuant to condition 9 (part 2, 4, 7, 8, 9, 10) of planning permission dated 3 June 2025 (RN: 25/00868/FULL)

15 Upper Wimpole Street London W1G 6LS

Details of privacy screen and detailed drawings/schedules/samples of works to fit glazing bars to retained windows; horizontal and vertical sections through new window and door joinery; coping specification and material to rear brickwork screen and glazing system to infill roof pursuant to condition 6 and 9 (part 1, 3, 5, 6) of planning permission dated 3 June 2025 (RN: 25/00868/FULL)

15 Upper Wimpole Street London W1G 6LS

Details of works to fit glazing bars to retained windows, horizontal and vertical sections through new window and door joinery, coping specification and material to rear brickwork screen and glazing system to infill roof pursuant to Condition 3 (Parts 1, 3, 5 and 6) of Listed Building Consent dated 3 June 2025 (RN: 25/00869/LBC)

13 Harley Street London W1G 9QG

Installation of double doors at first floor level and repair work to front door

15 Upper Wimpole Street London W1G 6LS

Details of works to roofs, including leadwork, slating and retention of slate coping to rear vaulted roof; design of new entrance door and mews doors (to be traditional with collinge hinges); paving specs/sample (lightwells/infills); design and materials of new fanlight; works to front lightwell entrance steps, rationalised pipe work, detailed design and materials of glazed lift; relationship of glazed lift to decorative features at each level, confirmation that floorboards will be retained throughout and any new flooring pursuant to Conditions 3 External (2,4,7,8,9 and 10) and Internal (8,9,10 and 11) of listed building consent dated 03 June 2025 (RN25/00869/LBC)

2 Wimpole Mews London W1G 8PE

Detailed drawings (1:20 and1:5) inc existing fabric junction pursuant to Condition 4 of planning permission dated 31 July 2025 (RN: 25/03972/FULL)

Flat 43 2 Mansfield Street London W1G 9NF

Installation of external air conditioning unit at roof level and associated cabling and pipework. (Linked with 26/00590/LBC)

Flat 43 2 Mansfield Street London W1G 9NF

Installation of external air conditioning unit at roof level and associated cabling and pipework. (Linked with 26/00589/FULL)

43 Weymouth Mews London W1G 7EQ

Retention of one retractable awning and installation of one additional retractable awning at ground floor level to The Jackalope Public House.

58 Queen Anne Street London W1G 8HW

Detailed drawings and a bio-diversity management plan in relation to the green (living) roof areas to include construction method, layout, species and maintenance regime pursuant to Condition 9 of planning permission dated 26th June 2023 (RN: 22/08485/FULL)

43 Weymouth Mews London W1G 7EQ

Retention of one retractable awning and installation of one additional retractable awning at ground floor level to The Jackalope Public House.