Planning application
26/00876/LBC
1 South Eaton Place London SW1W 9ES
Proposal
Alterations at basement level, including reconfiguration of existing modern partitions and the upgrading and incorporation of the front pavement vaults into the basement accommodation through floor lowering and internal connection, internal alterations at ground floor level, including a new opening between existing rooms and alterations to the rear outshot at first floor level to provide access to an existing roof area and replacement of modern glazed roof structures [Linked to 26/00989/FULL]
As published by the council, reference 26/00876/LBC
Timeline
Dates from the published record
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12 Feb 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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26/00989/FULL Awaiting decision
1 South Eaton Place London SW1W 9ES
Excavation to enlarge and lower front vaults and allow for internal connection with main house; replacement of doors to return elevation of front lightwell; creation of a first-floor terrace, inlcuding installation of new door and window; replacement of glazed roof to back addition, and replacement window to rear of back addition; internal alterations. [Linked with 26/00876/LBC]
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26/01042/ADFULL Granted
1 - 4 Eaton Mews West London SW1W 9ET
Signed CoCP Appendix A checklist for Construction Phase pursuant to Condition 3(c) of planning permission dated 31 October 2024 (RN 24/00412/FULL)
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25/05654/TCA Granted
58 Eaton Mews West London SW1W 9ET
T1 Palm tree: Fell to ground and treat stump.
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26/01858/FULL Awaiting decision
28 Chester Row London SW1W 9JB
Installation of staircase within front lightwell and gate within existing railings; replacement of front lightwell paving; replacement of existing lantern lights in roof of existing single storey rear extension with two rooflights; demolition and replacement of existing roof extension with new mansard roof extension; installation of air conditioning condenser unit within acoustic enclosure at front second-floor level; replacement of front entrance door and fanlight; replacement of door to Minera Mews; replacement French doors to front basement lightwell and replacement of all single-glazed timber sash windows with double-glazed timber sash windows.
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25/06027/NMA Withdrawn
1 - 4 Eaton Mews West London SW1W 9ET
Amendments to planning permission dated 31st October 2024 (RN:24/00412/FULL) for Redevelopment of 1-4 Eaton Mews West including demolition behind a part retained facade and replacement building comprising ground and first floor with a new part mansard roof level, to provide six residential (Class C3) units, and provision of office (Class E(g)(i)) accommodation. Creation of rear gardens at ground floor level, installation of plant, and other associated works. Namely, the introduction of a new masonry wall to support the existing boundary wall.
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25/07487/ADFULL Awaiting decision
1B Chester Row London SW1W 9JF
Detailed drawings of new rear windows pursuant to condition 5 of planning permission dated 24th September 2025 (RN:25/05281).
Other heritage and listed buildings applications
In Westminster
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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
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)