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Planning application

22 Seymour Place London W1H 7NJ

Granted Westminster 25/06754/FULL Full Planning Permission Application

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

Proposal

Retention of the existing extract duct with brick cladding and associated fans, and duct attenuation, along with the installation of three AC units within an acoustic enclosure at the rear ground-floor roof level.

As published by the council, reference 25/06754/FULL

Application record

Reference
25/06754/FULL
Type
Full Planning Permission Application
Status
Decided
Decision
Granted As published: Application Permitted
Received
19 Sep 2025
Validated
25 Sep 2025
Decided
3 Mar 2026
Ward
Marylebone
Decision by
Complex Delegated Decision
Postcode
W1H 7NJ

Timeline

Dates from the published record

  1. 19 Sep 2025

    Received by Westminster

  2. 25 Sep 2025

    Validated

    Checked as complete and ready for consideration.

  3. 3 Mar 2026

    Decision issued: Application Permitted

  4. 21 Jul 2026

    Added to PlanIndex

Who's behind it

Company information only, from the register and Companies House

Monmouth Planning Ltd Agent, a planning consultancy registered in London

Active · incorporated 2014 · London

83 applications on PlanIndex · across 10 councils · 88% granted

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Documents

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

26 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 3 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.

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