Planning application
9 - 10 Northumberland Place London W2 5BS
Works: Extension Loft or dormer
Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.
Proposal
Erection of a mansard roof extension and solar panels at no. 10 Northumberland Place
As published by the council, reference 26/01573/FULL
Application record
- Reference
- 26/01573/FULL
- Type
- Full Planning Permission Application
- Status
- Pending
- Received
- 11 Mar 2026
- Validated
- 13 Mar 2026
- Ward
- Bayswater
- Postcode
- W2 5BS
Timeline
Dates from the published record
-
11 Mar 2026
Received by Westminster
-
13 Mar 2026
Validated
Checked as complete and ready for consideration.
-
21 Jul 2026
Added to PlanIndex
-
Decision
Awaiting decision
Decision expected by 8 May 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 91 days over the applications it decided in the last year.
Who's behind it
Company information only, from the register and Companies House
Found Associates Agent, registered in London
Active · incorporated 1998 · London
3 applications on PlanIndex
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.
Watch members (£5 a month) open the document list 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 119 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
Within 0.3 miles
-
12 Northumberland Place London W2 5BS
Details of construction contract agreed between all land owners and lessees pursuant to condition 7 of planning permission dated 19th March 2021 (RN: 21/00382/FULL).
Granted Full applications 9 docs -
3 Northumberland Place London W2 5BS
Detailed drawings of new railings, new bin store, new lightwell porch, method statement explaining the measures you will take to protect the trees on and close to the site and details of the foundations of the bin stores pursuant to conditions 4, 5 and 7 of planning permission dated 13th February 2025 (RN:24/07005).
Granted Full applications Extension Trees 18 docsSmall domestic -
3 Northumberland Place London W2 5BS
84% historically approved · decision due ~20 Oct
Painting of the front facade of the building.
Decided Lawful development -
3 Northumberland Place London W2 5BS
100% historically approved · decision due ~7 Apr
Magnolia growing in the front left hand corner of the front garden of 3 Northumberland Place, tree 1 on the attached plan. Fell, remove stump and main roots. Reasons - poor specimen with low amenity value and no real scope for improvement. To be replaced, together with a replacement for the recently removed cotoneaster (ref 25/03383/TCA) Proposed replacements to be agreed with Westminster, we suggest Japanese maple, silverbell tree or similar small / medium ornamental tree.
Awaiting decision Trees 7 docs -
9 Northumberland Place London W2 5BS
88% historically approved · decision due ~20 Nov
Erection of a mansard roof extension and solar panels at 10 Northumberland Place with access onto roof terrace at Number 9.
Awaiting decision Full applications Extension Loft or dormer -
3 Northumberland Place London W2 5BS
84% historically approved · decision due ~20 Nov
Installation of one air source heat pump on the flat roof of the rear outrigger.
Decided Lawful development Extension
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