Planning application
Flat D 86 Eaton Square London SW1W 9AG
Works: New dwelling Several homes
Read from the description, not a valuation. How we read the register
Permission granted. Work must normally begin within three years of the decision or the permission lapses.
Proposal
Subdivision of single flat into three flats and installation of rooftop AC condenser.
As published by the council, reference 25/08586/FULL
Application record
- Reference
- 25/08586/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Application Permitted
- Received
- 24 Nov 2025
- Validated
- 24 Nov 2025
- Decided
- 22 May 2026
- Ward
- Knightsbridge & Belgravia
- Decision by
- Delegated Decision
- Postcode
- SW1W 9AG
Site history
Applications at this address on the Westminster register
This site has had 3 applications since 2025: 2 approved, 0 refused.
-
26/04271/ADFULL Awaiting decision
Flat D 86 Eaton Square London SW1W 9AG
Details of arrangements on-street residents car parking in the vicinity of the site pursuant to condition 8 of planning permission dated 22 May 2026 (RN: 25/08586/FULL).
-
25/08587/LBC Granted
Flat D 86 Eaton Square London SW1W 9AG
Subdivision of single flat into three flats and installation of rooftop AC condenser.
Timeline
Dates from the published record
-
24 Nov 2025
Received by Westminster
-
22 May 2026
Decision issued: Application Permitted
-
4 Aug 2026
Added to PlanIndex
Related applications
Cases linked to this one on the register
1 later application on the register refers to this one:
-
26/04271/ADFULL Awaiting decision
Flat D 86 Eaton Square London SW1W 9AG
Details of arrangements on-street residents car parking in the vicinity of the site pursuant to condition 8 of planning permission dated 22 May 2026 (RN: 25/08586/FULL).
Who's behind it
Company information only, from the register and Companies House
Agent on file, an architecture practice registered in London
2 applications on PlanIndex
Trade members see who it is, their full track record, and every application they have filed.
See who's behind itDocuments
Plans, drawings, consultee responses and the officer's report
40 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.
Trade members open them from here.
Open the documentsWhat this grant of permission means
Westminster granted permission on 22 May 2026, subject to any conditions on the decision notice. Work must normally begin within three years or the permission lapses. More in our guide to what happens after a planning decision.
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 500 metres
-
Flat D 86 Eaton Square London SW1W 9AG
Subdivision of single flat into three flats and installation of rooftop AC condenser.
Granted Heritage and listed buildings New dwelling 33 docsSeveral homes -
Flat D 86 Eaton Square London SW1W 9AG
87% historically approved · decision due ~24 Aug
Details of arrangements on-street residents car parking in the vicinity of the site pursuant to condition 8 of planning permission dated 22 May 2026 (RN: 25/08586/FULL).
Awaiting decision Full applications 4 docs -
First Floor And Second Floor Flat 84 Eaton Square London SW1W 9AG
87% historically approved · decision due ~9 Apr
Installation of new timber framed slimline double glazed sash windows in place of modern units; and retention of historic window frames with replacement slimline double glazing. (Linked to 25/09171/LBC)
Awaiting decision Full applications Windows or glazing 24 docs -
First Floor And Second Floor Flat 84 Eaton Square London SW1W 9AG
Internal reconfiguration of Flat B, including new fittings, fixtures, services, and finishes throughout; alterations to staircase landings with replacement balustrades and handrails; installation of new timber-framed slimline double-glazed sash windows in place of modern units; retention of historic window frames with replacement slimline double-glazing; minor internal layout adjustments, including relocation of the powder room and removal of the secondary lift; replacement of modern doors with raised-height openings; installation of new fireplaces in the Drawing Room and Principal Bedroom; introduction of underfloor heating throughout; together with associated internal and external works.
Granted Heritage and listed buildings Windows or glazing 70 docs -
90 Eaton Square London SW1W 9AG
90% historically approved · decision due ~17 Apr
Structural repairs to front pavement vaults.
Awaiting decision Heritage and listed buildings 18 docs -
90 Eaton Square London SW1W 9AG
100% historically approved · decision due ~17 Dec
T931 - ash - crown reduce by up to 1.5 meters in hight and 1 meter on the lateral branches to take the crown away from the buildings and shape. T930 - Magnolia - crown reduce all over by up to 1.5 meters to contain size in inner courtyard and reduce conflict with neighbouring ash and give clearance from buildings.
Awaiting decision Trees 6 docs
Other full applications
In Westminster
-
26/06024/FULL Awaiting decision
House Of Commons Palace Of Westminster Parliament Square London SW1A 0AA
Installation of new and replacement electronic equipment within Speaker. (Linked with 26/06025/LBC)
-
26/06017/FULL Awaiting decision
38 Lauderdale Mansions Lauderdale Road London W9 1NE
Installation of an external AC Unit / Heat Pump at roof level.
-
26/05938/FULL Awaiting decision
24 Vincent Square London SW1P 2NJ
Subdivision of existing residential property to create two self-contained 3-bedroom family homes, along with cycle parking and associated external alterations.
-
26/05935/FULL Awaiting decision
47 Hereford Road London W2 5AH
Installation of one number new external condenser unit to the southerly elevation service alley.
-
26/05959/FULL Awaiting decision
Basement And Ground Floor 50 New Bond Street London W1S 1BJ
Installation of three new condensers on the roof, within an existing designated plant area.