Planning application
34 Belgrave Mews South London SW1X 8BT
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Details of a validation report pursuant to condition 5 (4) of planning permission dated 8th February 2024 (RN:23/08449/FULL)
As published by the council, reference 25/08400/ADFULL
Application record
- Reference
- 25/08400/ADFULL
- Type
- Approval of Details (Full PP)
- Status
- Pending
- Received
- 17 Nov 2025
- Validated
- 21 Nov 2025
- Ward
- Knightsbridge & Belgravia
- Postcode
- SW1X 8BT
Timeline
Dates from the published record
-
17 Nov 2025
Received by Westminster
-
21 Nov 2025
Validated
Checked as complete and ready for consideration.
-
20 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 16 January 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 64 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Lewis Stroud Architects Ltd Agent, an architecture practice registered in London
Active · incorporated 2018 · London
17 applications on PlanIndex · across 4 councils · 100% granted
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
7 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 happens while it is decided
This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided full applications in a median of 89 days. More in our guide to how long planning decisions take.
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
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1 - 3 Belgrave Mews South London SW1X 8BT
93% historically approved · decision due ~1 Apr
Amendments to planning permission dated 27 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, amendment to front door and garage door to the front elevation at ground floor level.
Awaiting decision Amendments Extension Loft or dormer +2 2 docsSmall domestic -
21 Eaton Place London SW1X 8BP
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Like for like remedial after exposure works.
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Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP
Replacement of external door at Lower Ground Floor level and installation of external security gate in front.
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Basement And Ground Floor Maisonette 21 Eaton Place London SW1X 8BP
Internal alterations at lower ground floor level, including installation of damp proofing and secondary glazing to front windows.
Granted Heritage and listed buildings Windows or glazing 16 docs -
Flat 1 23 Eaton Place London SW1X 8BP
90% historically approved · decision due ~24 Jun
Erection of single-story rear extension and associated works.
Awaiting decision Heritage and listed buildings Extension 14 docs -
Flat 1 23 Eaton Place London SW1X 8BP
87% historically approved · decision due ~24 Jun
Erection of single-story rear extension and associated works.
Awaiting decision Full applications Extension 18 docs
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