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Planning application

37B Barnsdale Road London W9 3LL

Granted Westminster 25/06343/COFUL Full Application for Council's Own Dev.

Works: Windows or glazing

Permission granted. Work must normally begin within three years of the decision or the permission lapses.

Proposal

Replacement of existing windows with double glazed timber windows.

As published by the council, reference 25/06343/COFUL

Application record

Reference
25/06343/COFUL
Type
Full Application for Council's Own Dev.
Status
Decided
Decision
Granted As published: Application Permitted
Received
5 Sep 2025
Validated
23 Sep 2025
Decided
11 Nov 2025
Ward
Harrow Road
Decision by
Delegated Decision
Postcode
W9 3LL

Timeline

Dates from the published record

  1. 5 Sep 2025

    Received by Westminster

  2. 23 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 11 Nov 2025

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Alderton Associates Ltd Agent, registered in Chelmsford

Active · incorporated 2004 · Chelmsford

26 applications on PlanIndex · across 13 councils · 86% 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 record

Documents

Plans, drawings, consultee responses and the officer's report

22 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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What this grant of permission means

Westminster granted permission on 11 November 2025, 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

  • 47 Barnsdale Road London W9 3LL

    26/01028/FULL Submitted 18 Feb 2026 50 yards away

    87% historically approved · decision due ~21 May

    Demolition of the existing rear addition to the property located within the garden, reconstruction of a new rear addition extended 1m in depth from the original footprint of the existing, construction of a side infill extension to ground floor only, modification of the internal layout to create two flats with three bedrooms respectively. Introduction of retrofit measures to improve the energy efficiency such as solar panels, internal and external wall insulation to the rear of the existing retained structure.

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  • 47 Barnsdale Road London W9 3LL

    26/01028/COFUL Submitted 18 Feb 2026 50 yards away

    87% historically approved · decision due ~21 May

    Demolition of the existing rear addition to the property located within the garden, reconstruction of a new rear addition extended 1m in depth from the original footprint of the existing, construction of a side infill extension to ground floor only, modification of the internal layout to create two flats with three bedrooms respectively. Introduction of retrofit measures to improve the energy efficiency such as solar panels, internal and external wall insulation to the rear of the existing retained structure.

    Awaiting decision Full applications New dwelling Extension +1 23 docs
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  • 45 Barnsdale Road London W9 3LL

    26/01027/COFUL Submitted 18 Feb 2026 50 yards away

    87% historically approved · decision due ~15 Apr

    Demolition of existing rear addition to the property located within the garden; reconstruction of a new rear addition extended 1m in depth from the original footprint of the existing; construction of a side infill extension to ground floor only; modification of the internal layout to create two flats with three bedrooms respectively; introduction of retrofit measures to improve energy efficiency such as solar panels, internal and external wall insulation to the rear of the existing retained structure.

    Awaiting decision Full applications New dwelling Extension +1 13 docs
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  • 58A Warlock Road London W9 3LW

    26/03246/FULL Submitted 18 May 2026 100 yards away

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  • 50A Warlock Road London W9 3LW

    26/05881/NMA Submitted 27 Aug 2026 100 yards away

    93% historically approved · decision due ~22 Oct

    Amendments to planning permission dated 11 August 2026 (RN: 26/04158/FULL) for the: Erection of a single-storey rear extension at lower ground floor level; replacement of existing rear window with a door at ground floor level and creation of terrace with associated railings/screening; and associated external alterations. NAMELY, revise the height of the rear elevation kitchen French doors.

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  • 50A Warlock Road London W9 3LW

    26/04158/FULL Submitted 23 Jun 2026 100 yards away

    87% historically approved · decision due ~21 Aug

    Erection of a single-storey rear extension at lower ground floor level; replacement of existing rear window with a door at ground floor level and creation of terrace with associated railings/screening; and associated external alterations.

    Awaiting decision Full applications Extension Windows or glazing
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In Westminster

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    Variation of Condition 1 of planning permission dated 22 December 2026 (RN: 16/05372/FULL) for: Demolition of mews buildings at 28 and 29 Devonshire Mews West and lower ground and ground floor link building at the rear of 141 Harley Street and the erection of new building to include a three storey basement to the rear of the site in connection with the use of the 141 Harley Street and the lower ground and ground floor of 143 Harley Street for Class D1 medical purposes; installation of a new passenger lift to the rear of 141 Harley Street and installation of plant. (Site includes excavation part way under the pavement of Devonshire Mews West and use swap with 126 Harley Street) namely, to allow creation of party wall openings at basement, ground and first floors; insertion of a platform lift within No. 143 from basement to first floors; partial infilling of the rear basement area; and other minor adjustments to plan form. (Linked with 26/06290/LBC)

    Received 16 Sep, published by the council 23 Sep 2026 Full applications
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    15 Warwick Way London SW1V 1QT

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