Planning application
26/01857/LBC
Flat 4 St Davids House 16 New Cavendish Street London W1G 8UP
Proposal
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)
As published by the council, reference 26/01857/LBC
Timeline
Dates from the published record
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23 Mar 2026
Received by Westminster
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21 Jul 2026
Added to PlanIndex
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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 heritage and listed buildings applications
How this application type works
Heritage applications concern listed buildings and conservation areas. Listed building consent is needed for works, inside or out, that affect the special interest of a listed building, and carrying out such works without consent is a criminal offence. The council weighs harm to the heritage asset against any public benefit of the proposal.
More on heritage and listed buildings applications in our guide
Nearby applications
Within 500 metres
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26/04613/ADLBC Awaiting decision
Flat 2 St Davids House 16 New Cavendish Street London W1G 8UP
Details of crittal styled doors / reflected ceiling plans showing lighting and new cornicing (a), sections showing suspended ceilings (b), elevations showing opening between front rooms (c) pursuant to condition 3 and 4 of listed building consent dated 16 June 2026 (RN: 26/03520/LBC)
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26/01855/FULL Awaiting decision
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)
-
26/03520/LBC Awaiting decision
Flat 2 St Davids House 16 New Cavendish Street London W1G 8UP
Internal refurbishment and refit of second floor flat; installation of external boiler flue to rear.
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26/00410/ADV Granted
3 Marylebone High Street London W1U 4NG
Display of an internally illuminated (letters only) fascia sign measuring 2.61m x 0.235m.
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25/08142/FULL Awaiting decision
1 Marylebone Street London W1G 8JA
Installation of an air source heat pump within the external courtyard of the rear, lower ground floor level of the building.
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26/00431/NMA Awaiting decision
1 Marylebone High Street London W1U 4DL
Amendments to planning permission dated 18 June 2025 (RN: 24/08179/FULL) for the: Rear extension to existing building, formation of new roof terrace including rooftop pavilion, new external plant, replacement of existing windows with double glazing and minor alterations to building facade including new entrance. Namely, to allow the removal of existing entrance step with a ramp; removal of existing smoke vents and pavement lights with concrete to match existing; and changes in window arrangement on rear and north elevation of the building.
Other heritage and listed buildings applications
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26/04984/LBC Awaiting decision
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Installation of replacement fire surround.
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26/04997/LBC Awaiting decision
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26/04979/LBC Awaiting decision
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Internal alterations including removal of internal enclosures; Replacement flooring, shelving and slatwall systems, staircase handrail repair and other associated joinery works.
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26/04987/LBC Awaiting decision
Basement And Ground Floor 8 Ganton Street London W1F 7QL
Repainting of the existing timber shopfront, hand-painted fascia lettering, installation of a new hanging sign using the existing projecting sign bracket, and installation of a discreet fascia-mounted LED trough light.
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26/04995/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of rear conservatory extensions and an entrance loggia to side with roof terrace above, together with associated landscaping and alterations. (Linked with 26/04994/FULL)