Planning application
26/02850/LBC
37 Belgrave Square London SW1X 8NS
Proposal
Internal alterations inclduing installation of tanking to the basement; and other associated works.
As published by the council, reference 26/02850/LBC
Timeline
Dates from the published record
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29 Apr 2026
Received by Westminster
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18 May 2026
Validated
Checked as complete and ready for consideration.
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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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25/08093/TCA Granted
37 Belgrave Square London SW1X 8NS
Prune N / NW side to give approx. 2.5m clearance from the existing scaffolding for the proposed (approx. 2.5m x 2.5m) gantry and lift; by reducing lateral branches to no more than previous most recent reduction points to the height of the scaffolding (pruning wounds to be no greater than 4cm) and the selective pruning of several subordinate branches at the top of the scaffolding (pruning wounds for the highest branches to be no greater than 6cm).
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25/08890/LBC Granted
37 Belgrave Square London SW1X 8NS
Replacement of lead roofing to lightwell roof and dome roof, refurbishment of dome roof frame including replacement glazing and associated internal and external repairs.
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26/03218/ADLBC Awaiting decision
37 Belgrave Square London SW1X 8NS
Details of structural frame detail drawing that illustrates the plan, sections, and details of the frame; architectural frame detail drawing including waterproofing information for the frame pursuant to condition 3 of listed building consent dated 27th March 2026 (RN: 25/08890/LBC).
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24/02436/ADLBC Granted
37 Belgrave Square London SW1X 8NS
Details of consent regarding seminar room 1 pursuant to Condition 5 of listed building consent dated 04 March 2024 (RN: 24/00187/LBC).
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10/00559/LBC Granted
37 Belgrave Square London SW1X 8NS
Installation of new internal door at ground floor level.
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26/02636/ADLBC Awaiting decision
37 Belgrave Square London SW1X 8NS
Details of the samples of the proposed finish for the beams in the deWalden Room pursuant to condition 3 of listed building consent dated 27th March 2026 (RN: 25/08591/LBC).
Other heritage and listed buildings applications
In Westminster
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26/04984/LBC Awaiting decision
47G Randolph Avenue London W9 1BQ
Installation of replacement fire surround.
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26/04997/LBC Awaiting decision
Hanover Lodge Outer Circle Regent's Park London NW1 4HB
Erection of a morning room side extension. (Linked to 26/04996/FULL)
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26/04979/LBC Awaiting decision
12 Brewer Street London W1F 0SF
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)