Planning application
43 Welbeck Street London W1G 8DX
Works: Extension
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Alterations to the existing building to provide dual Office (Class E (g) and Healthcare (Class E (e)) floorspace at lower ground to third floor, comprising, rear extension and retrofit of existing outrigger and extension at lower-ground and first floor, internal alterations, creation of terraces and replacement and installation of external plant. (Linked to 26/02956/LBC)
As published by the council, reference 26/02955/FULL
Application record
- Reference
- 26/02955/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 5 May 2026
- Validated
- 5 May 2026
- Ward
- Marylebone
- Postcode
- W1G 8DX
Site history
Applications at this address on the Westminster register
This site has had 2 applications since 2026.
-
26/02956/LBC Awaiting decision
43 Welbeck Street London W1G 8DX
Alterations to the existing building to provide dual Office (Class E (g) and Healthcare (Class E (e)) floorspace at lower ground to third floor, comprising, rear extension and retrofit of existing outrigger and extension at lower-ground and first floor, internal alterations, creation of terraces and replacement and installation of external plant. (Linked to 26/02955/FULL)
Timeline
Dates from the published record
-
5 May 2026
Received by Westminster
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 30 June 2026, 8 weeks from validation under the statutory target for most applications. Extensions of time are common and are agreed case by case.
Westminster took a median of 66 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Howard de Walden Estates Limited Agent, a developer registered in London
Active · incorporated 1963 · London
35 applications on PlanIndex
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See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
30 documents on file for this application
A planning file usually holds the application form, drawings and site plans, consultee responses, the officer's report and the decision notice.
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Open the documentsWhat happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 91 days. More in our guide to how long planning decisions take.
About full applications
A full application seeks permission for a complete, detailed proposal in one go, with siting, design, access and landscaping all fixed at this stage. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
43 Welbeck Street London W1G 8DX
90% historically approved · decision due ~30 Jun
Alterations to the existing building to provide dual Office (Class E (g) and Healthcare (Class E (e)) floorspace at lower ground to third floor, comprising, rear extension and retrofit of existing outrigger and extension at lower-ground and first floor, internal alterations, creation of terraces and replacement and installation of external plant. (Linked to 26/02955/FULL)
Awaiting decision Heritage and listed buildings Extension 30 docs -
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.
Granted Advertising 8 docs -
44 Welbeck Street London W1G 8DY
90% historically approved · decision due ~1 Jan
Repositioning of third-floor kitchenette door; Installation of a fire door and associated partition to pavement vault; Reintroduction of window opening between original courtyard and lower ground floor middle room; Installation of wall mounted fan coil until within lower ground floor kitchenette; and Creation of fixed cleaners cupboard within lower ground floor hallway.
Awaiting decision Heritage and listed buildings Windows or glazing 7 docs -
44 Welbeck Street London W1G 8DY
Installation of fire lobby at ground floor level.
Granted Heritage and listed buildings 11 docs -
44 Welbeck Street London W1G 8DY
90% historically approved · decision due ~31 Dec
Details of ventilation grilles pursuant to condition 3. ii) of listed building consent dated 20 December 2024 (RN: 24/07651/LBC). (Linked with 25/08039/ADFULL)
Awaiting decision Conditions 4 docs -
44 Welbeck Street London W1G 8DY
Detailed drawings showing the omission of SIKA type render to vaults and detailed drawings and method statement of tanking/drained cavity to the vaults pursuant to Conditions 2 and 4 of listed building consent dated 16 July 2025 (RN: 25/01239/LBC)
Granted Conditions 10 docs
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Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.
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