Planning application
Flat 1 109 Eaton Square London SW1W 9AA
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Installation of external AC condenser units and plant within the existing under-pavement vaults to the front of the property at lower ground floor level; internal refurbishment and reconfiguration of the ground and lower ground floors, including rationalisation of internal layouts, replacement of the existing spiral staircase and balustrade/handrail, replacement of internal architectural details and restoration/reinstatement of surviving and/or concealed historical features; and associated works. (Linked with 26/05890/FULL)
As published by the council, reference 26/05891/LBC
Application record
- Reference
- 26/05891/LBC
- Category
- Heritage and listed buildings
- Status
- Pending
- Received
- 27 Aug 2026
- Validated
- 27 Aug 2026
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1W 9AA
Timeline
Dates from the published record
-
27 Aug 2026
Received by Westminster
-
4 Sep 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 22 October 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 60 days over the applications it decided in the last year.
Documents
Plans, drawings, consultee responses and the officer's report
1 document 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.
Trade members open them from here.
Open the documentsWhat 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
-
Flat 1 109 Eaton Square London SW1W 9AA
87% historically approved · decision due ~22 Oct
Installation of external AC condenser units and plant within the existing under-pavement vaults to the front of the property at lower ground floor level. (Linked with 26/05891/LBC)
Awaiting decision Full applications 1 doc -
113 Eaton Square London SW1W 9AA
92% historically approved · decision due ~9 Jun
Amendments to planning permission dated 6th November 2025 (RN 25/06283/FULL) for the External alterations including infill of the rear lightwell at lower ground floor level, addition of rooflights, replacement windows and doors including replacing garage doors and use of the garage as habitable space at 113 Eccleston Mews. NAMELY, Front windows of mews house changed from casement to timber, double glazed sash windows.
Awaiting decision Amendments Extension Loft or dormer +1 7 docs -
113 Eaton Square London SW1W 9AA
Details confirming omission of rendered finish to front elevation, revised rear rooflight, revised window detail, rooflights showing relationship to finished roof pitch and external doors pursuant to condition 4 and 5 of planning permission dated 6th November 2025 (RN:25/06283/FULL).
Granted Full applications Loft or dormer Windows or glazing 16 docs -
113 Eaton Square London SW1W 9AA
Details confirming omission of rendered finish to front elevation, revised rear rooflight, revised window detail, rooflights showing relationship to finished roof pitch and external doors pursuant to condition 4 and 5 of planning permission dated 6th November 2025 (RN: 25/06284/LBC). Linked to 26/00076/ADFULL
Granted Conditions Loft or dormer Windows or glazing 15 docs -
116 Eaton Square London SW1W 9AA
87% historically approved · decision due ~17 Jun
Replacement lightwell stair and balustrade, floor finishes and surface water drainage, undercroft bin store and new service entrance door. (Linked with 26/02578/LBC)
Awaiting decision Full applications 15 docs -
116 Eaton Square London SW1W 9AA
90% historically approved · decision due ~17 Jun
Replacement lightwell stair and balustrade, floor finishes and surface water drainage, undercroft bin store and new service entrance door. (Linked with 26/02577/FULL)
Awaiting decision Heritage and listed buildings 2 docs
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