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Planning application

29 Chiltern Street London W1U 7PL

Granted Westminster 25/08821/FULL Full Planning Permission Application

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

Proposal

Installation of external plant within the rear lightwell.

As published by the council, reference 25/08821/FULL

Application record

Reference
25/08821/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
4 Dec 2025
Validated
4 Dec 2025
Decided
20 Apr 2026
Ward
Marylebone
Decision by
Delegated Decision
Postcode
W1U 7PL

Timeline

Dates from the published record

  1. 4 Dec 2025

    Received by Westminster

  2. 20 Apr 2026

    Decision issued: Application Permitted

  3. 20 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

William Russell Architects Ltd Agent, an architecture practice registered in Basildon

Active · incorporated 2017 · Basildon

1 application on PlanIndex

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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 20 April 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

  • 27 Chiltern Street London W1U 7PJ

    26/07070/FULL Submitted 15 Oct 2026 50 yards away

    88% historically approved · decision due ~10 Dec

    Installation of three external air-conditioning condenser units within the two existing rear courtyards/lightwells at ground-floor level. Two condenser units will be located within the left-hand courtyard and enclosed within a purpose-built acoustic enclosure, while one condenser unit will be located within the right-hand courtyard and screened by a multi-panel acoustic screen. The proposed acoustic mitigation measures are intended to minimise operational noise and reduce the impact on neighbouring residential properties. The installation will include the necessary associated works to support the operation of the condenser units. No change of use is proposed as part of this application.

    Awaiting decision Full applications

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  • Flat 119 Wendover House Chiltern Street London W1U 7NR

    04/06577/FULL Submitted 19 Aug 2004 50 yards away

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    Refused Full applications 5 docs

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  • 48 Dorset Street London W1U 7NE

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  • 23 - 25 Chiltern Street London W1U 7PH

    26/06923/FULL Submitted 9 Oct 2026 50 yards away

    88% historically approved · decision due ~8 Dec

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In Westminster

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    Received 4 Nov, published by the council 6 Nov 2026 Full applications
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    Received 4 Nov, published by the council 5 Nov 2026 Full applications
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    Received 3 Nov, published by the council 6 Nov 2026 Full applications