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 25/08587/LBC
Application record
- Reference
- 25/08587/LBC
- Type
- Listed Building Consent Application
- Status
- Decided
- Decision
- Granted As published: 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 Decided
Flat D 86 Eaton Square London SW1W 9AG
Details of residential parking mitigation measures pursuant to condition 8 of planning permission dated 22 May 2026 (RN: 25/08586/FULL).
-
25/08586/FULL 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
Who's behind it
Company information only, from the register and Companies House
ROSS ALEXANDER LAMBIE ARCHITECTS LTD Agent, an architecture practice registered in London
Active · incorporated 2021 · London
3 applications on PlanIndex · across 2 councils
Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.
See their track recordDocuments
Plans, drawings, consultee responses and the officer's report
33 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.
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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 heritage and listed building applications
Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.
Nearby applications
Within 0.3 miles
-
Flat D 86 Eaton Square London SW1W 9AG
Subdivision of single flat into three flats and installation of rooftop AC condenser.
Granted Full applications New dwelling 40 docsSeveral homes -
First Floor And Second Floor Flat 84 Eaton Square London SW1W 9AG
88% 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 -
85 - 88 Eaton Square London SW1W 9AG
100% historically approved · decision due ~26 Nov
T1 - Silver birch - prune away from building to allow 1.5 meters clearance for the erection of scaffolding T2 - Magnolia - prune away from building to allow 1.5 meters clearance for the erection of scaffolding
Awaiting decision Trees -
Flat D 86 Eaton Square London SW1W 9AG
89% historically approved · decision due ~24 Aug
Details of residential parking mitigation measures pursuant to condition 8 of planning permission dated 22 May 2026 (RN: 25/08586/FULL).
Decided 4 docs -
First Floor And Second Floor Flat 84 Eaton Square London SW1W 9AG
89% historically approved · decision due ~29 Oct
Details of the new French doors pursuant to condition 4 of planning permission dated 2nd April 2026 (26/00883/FULL)
Decided Windows or glazing -
First Floor And Second Floor Flat 84 Eaton Square London SW1W 9AG
89% historically approved · decision due ~28 Oct
Details of new French doors showing traditional joinery pursuant to condition 4 of Listed Building Consent dated 2 April 2026 (25/09171/LBC)
Decided Windows or glazing
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