Planning application
16 Beaumont Mews London W1G 6EJ
Works: Loft or dormer Demolition Windows or glazing Small domestic
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
Variation of conditions 1 and 13 of planning permission 19 February 2025 (RN: 24/03039/FULL) for the: 'Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'. Namely, to allow openable side hung windows instead of fixed-shut to the rear of the site. (Application under Section 73 of the Act)
As published by the council, reference 25/05859/FULL
Application record
- Reference
- 25/05859/FULL
- Type
- Full Planning Permission Application
- Status
- Decided
- Decision
- Granted As published: Application Permitted
- Received
- 19 Aug 2025
- Validated
- 19 Aug 2025
- Decided
- 9 Mar 2026
- Ward
- Marylebone
- Decision by
- Delegated Decision
- Postcode
- W1G 6EJ
Site history
Applications at this address on the Westminster register
This site has had 7 applications since 2025: 3 approved, 0 refused.
-
26/06812/ADFULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Details of a detailed Circular Economy Statement and details of a Site Waste Management Plan pursuant to condition 6 and 11 of planning permission dated 9th September 2026 (RN:26/03548/FULL)
-
26/03805/ADFULL Decided
16 Beaumont Mews London W1G 6EJ
Details of new windows and doors; facing materials; plant screen; and sample of the glass intended for the rear elevation pursuant to Conditions 7, 8, 9 and 13 of planning permission dated 09 April 2026 (RN: 25/07149/FULL)
-
26/03548/FULL Awaiting decision
16 Beaumont Mews London W1G 6EJ
Variation of Condition 1 (approved plans) and Condition 2 (Code of Construction Practice) of planning permission 24/03039/FULL dated 19th February 2025 for the 'Excavation of single storey basement and demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; namely to allow the development to be carried out in two phases and to secure the submission and approval of the Code of Construction Practice on a phase-specific basis. (Application under Section 73 of the Act).
-
25/07662/ADFULL Granted
16 Beaumont Mews London W1G 6EJ
Details of a supplementary acoustic report pursuant to condition 12 of planning permission dated 19th February 2025 (RN 24/03039/FULL)
-
25/07149/FULL Granted
16 Beaumont Mews London W1G 6EJ
Variation of Conditions 1 of planning permission dated 19th February 2025 (RN: 24/03039/FULL) for, 'Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; NAMELY, to allow the retention of the garage space together with associated amendments to the internal layout and external openings; omission of approved lightwell from the ground to basement level; alterations to fenestration to the front and rear elevations, and relocation of roof level plant. (Application under Section 73 of the Act).
-
25/07157/NMA Withdrawn
16 Beaumont Mews London W1G 6EJ
Amendments to planning permission dated 19 February 2025 (RN:24/03039/FULL) for excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3). namely, to allow the addition of a condition to the addtiona of a condition allwoing the development to be carried in two phase. for the approved development to be implemented in two phases, with the basement construction deferred to a later stage.
Timeline
Dates from the published record
-
19 Aug 2025
Received by Westminster
-
9 Mar 2026
Decision issued: Application Permitted
-
21 Jul 2026
Added to PlanIndex
Who's behind it
Company information only, from the register and Companies House
PSA Studio Ltd Agent, registered in Loughton
Active · incorporated 2013 · Loughton
10 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
10 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 9 March 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 0.3 miles
-
16 Beaumont Mews London W1G 6EJ
Variation of Conditions 1 of planning permission dated 19th February 2025 (RN: 24/03039/FULL) for, 'Excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; NAMELY, to allow the retention of the garage space together with associated amendments to the internal layout and external openings; omission of approved lightwell from the ground to basement level; alterations to fenestration to the front and rear elevations, and relocation of roof level plant. (Application under Section 73 of the Act).
Granted Full applications Loft or dormer Demolition +1 27 docsSmall domestic -
16 Beaumont Mews London W1G 6EJ
88% historically approved · decision due ~24 Jul
Variation of Condition 1 (approved plans) and Condition 2 (Code of Construction Practice) of planning permission 24/03039/FULL dated 19th February 2025 for the 'Excavation of single storey basement and demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3)'; namely to allow the development to be carried out in two phases and to secure the submission and approval of the Code of Construction Practice on a phase-specific basis. (Application under Section 73 of the Act).
Awaiting decision Full applications Loft or dormer Demolition 10 docsSmall domestic -
16 Beaumont Mews London W1G 6EJ
Amendments to planning permission dated 19 February 2025 (RN:24/03039/FULL) for excavation of single storey basement and the demolition and replacement of the mews building with an additional mansard storey to provide additional residential floorspace including the installation of an air source heat pump at roof level (Class C3). namely, to allow the addition of a condition to the addtiona of a condition allwoing the development to be carried in two phase. for the approved development to be implemented in two phases, with the basement construction deferred to a later stage.
Withdrawn Amendments Loft or dormer Demolition 7 docsSmall domestic -
16 Beaumont Mews London W1G 6EJ
Details of a supplementary acoustic report pursuant to condition 12 of planning permission dated 19th February 2025 (RN 24/03039/FULL)
Granted Full applications 8 docs -
16 Beaumont Mews London W1G 6EJ
Details of new windows and doors; facing materials; plant screen; and sample of the glass intended for the rear elevation pursuant to Conditions 7, 8, 9 and 13 of planning permission dated 09 April 2026 (RN: 25/07149/FULL)
Decided Windows or glazing -
16 Beaumont Mews London W1G 6EJ
89% historically approved · decision due ~1 Dec
Details of a detailed Circular Economy Statement and details of a Site Waste Management Plan pursuant to condition 6 and 11 of planning permission dated 9th September 2026 (RN:26/03548/FULL)
Awaiting decision
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