Planning application
26/01361/ADFULL
25 Belgrave Square London SW1X 8QD
Proposal
Details of all new windows pursuant to Condition 4 (part) of planning permission dated 12 February 2025 (RN: 24/06912/FULL)
As published by the council, reference 26/01361/ADFULL
Timeline
Dates from the published record
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3 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 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
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26/01353/ADLBC Awaiting decision
25 Belgrave Square London SW1X 8QD
Details of new windows and external doors pursuant to Condition 3 of listed building consent dated 12 February 2025 (RN: 24/06901/LBC)
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25/07399/NMA Awaiting decision
1 - 3 Belgrave Mews South London SW1X 8BT
Amendments to planning permission dated 27th August 2024 (RN:24/03215/FULL) for: Demolition behind retained front facade and construction of replacement house including replacement rear extension and terrace at lower height with new shallow balcony at second floor level; replacement of the fenestration and the roof of the existing mansard to include inset PV panels and an enclosed plant deck; and reposition front door with shallower porch namely, amendments to ground floor rear fenestration.
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25/08673/ADFULL Granted
Third And Fourth Floor Grosvenor Suite 26 - 27 Belgrave Square London SW1X 8QB
Details of railings pursuant to Condition 4 (part 1) of planning permission dated 5 July 2024 (RN: 24 /01848/FULL)
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26/01958/LBC Awaiting decision
Flat 3 17 Belgrave Place London SW1X 8BS
Alterations and refurbishment comprising removal of partitions on ground and first floor, erection of new partitions on first floor and replacement of internal staircase.
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26/03946/LBC Awaiting decision
Flat 2 3 Belgrave Place London SW1X 8BU
External walls insulation
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26/04057/ADLBC Awaiting decision
3 Belgrave Place London SW1X 8BU
Detailed drawings of the new fireplaces pursuant to conditon 4 of Listed Building Consent dated 18th June 2026 (RN:26/02754).
Other full applications applications
In Westminster
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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).
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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)
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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).
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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.
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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.