Planning application
26/00631/FULL
233 - 237 Old Marylebone Road London NW1 5QT
Proposal
Erection of a ground floor extension to the front of the building.
As published by the council, reference 26/00631/FULL
Timeline
Dates from the published record
-
3 Feb 2026
Received by Westminster
-
24 Mar 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
The statutory target is eight weeks for most applications and thirteen for major development. Extensions of time are common.
What happens while it is decided
The process from here
This application is with Westminster for determination. The council publicises it, consults neighbours and technical bodies where required, and weighs the responses against local and national planning policy.
The statutory target is eight weeks for most applications and thirteen for major development, though extensions of time are common. Comments carry most weight while the case is undecided, so check the council portal for the deadline if you want to respond.
About full applications applications
How this application type works
A full application seeks permission for a complete, detailed proposal in one go: siting, design, access and landscaping are all fixed at this stage. It is the standard route for new buildings, conversions and changes of use. The statutory target is eight weeks for smaller schemes and thirteen weeks for major development, though complex cases often take longer by agreement.
Nearby applications
Within 500 metres
-
26/01180/ADLBC Awaiting decision
245 Old Marylebone Road London NW1 5QT
Detailed drawings of secondary glazing and new external and internal doors pursuant to condition 4 of listed building consent dated 23rd April 2025 (RN: 24/01518/LBC). Linked to 25/08166/ADFULL.
-
25/07441/LBC Awaiting decision
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.
-
25/08853/LBC Awaiting decision
245 Old Marylebone Road London NW1 5QT
External alterations including erection of cycle storage in car park; alterations to windows and replacement of external doors (these previously approved under application 23/06852/FULL); enhancements and changes to front and side of existing building including additional works to windows, new external HVAC system. installation of eight A/C condenser units along the flank wall above basement level. Internal alterations (Linked to 25/06183/FULL)
-
25/05462/LBC Withdrawn
245 Old Marylebone Road London NW1 5QT
Internal and external alterations including, Installation of a tanking system; existing concrete floors within the main ablution areas, main corridor, and WC areas be excavated and reconstructed with new concrete floors incorporating an underfloor heating system; existing WC areas will be retained but retrofitted with a more modern design; New sinks and WC cubicles; A new plant room, including new water tanks, a water booster tank, a boiler rig, and other necessary mechanical equipment; installation of new FD30-rated fire doors; front and rear alterations to elevations and hard standing to front of the building
-
26/02546/AD7 Awaiting decision
31 Crawford Place London W1H 4LL
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 0.45m.
-
26/02034/TELNOT Decided
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.
Other full applications applications
In Westminster
-
26/04824/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Detailed design and specification of new blinds to NZH based on mock-up trials on-site. pursuant to condition 32 (i) of planning permission dated 8th April 2024 (23/00571/FULL).
-
26/04829/ADFULL Granted
New Zealand House 80 Haymarket London SW1Y 4TE
Details of external and internal signage strategy pursuant to Condition 33(E) of planning permission dated 8th April 2024 (RN: 23/00571/FULL)
-
26/04841/ADFULL Granted
29 Henstridge Place London NW8 6QD
Details of the facing materials you will use, including glazing, and elevations and roof plans annotated to show where the materials are to be located pursuant to condition 5 of planning permission dated 18th November 2025 (RN:25/06159).
-
26/04989/FULL Awaiting decision
1 Kildare Terrace London W2 5JT
Erection of a mansard roof extending over the main house and side wing, replacement lower ground rear extension with roof terrace above, lowering of lower ground floor slab, installation of an air source heat pump in rear garden, new front boundary treatment, and new second floor window on the north elevation.
-
26/04986/FULL Awaiting decision
Inver Court Inverness Terrace London W2 6JB
Replacement of combustible materials in the render facades; timber decking and plastic soffits/ fascias to terraces with non-combustible materials on the 5th and 6th floors.