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Planning application

Moxon House Moxon Street London W1U 4EY

Awaiting decision Westminster 25/08906/FULL Full Planning Permission Application

Works: New dwelling Extension Windows or glazing Several homes

Read from the description, not a valuation. How we read the register

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

Change of use of the existing three apartments from residential use (Class C3) to commercial use (Class E) as four retail units including alterations to form new retail frontages a small rear infill extension and replace of single glazing with slim line double glazing to existing windows. (Application to form part of a land swap with 1 Marylebone High Street and 38 Portland Place and 9 Cavendish Mews North).

As published by the council, reference 25/08906/FULL

Application record

Reference
25/08906/FULL
Type
Full Planning Permission Application
Status
Pending
Received
8 Dec 2025
Validated
8 Dec 2025
Ward
Marylebone
Postcode
W1U 4EY

Timeline

Dates from the published record

  1. 8 Dec 2025

    Received by Westminster

  2. 20 Jul 2026

    Added to PlanIndex

  3. Decision

    Awaiting decision

    Decision expected by 2 February 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 66 days over the applications it decided in the last year.

Who's behind it

Company information only, from the register and Companies House

Howard de Walden Estates Limited Agent, a developer registered in London

Active · incorporated 1963 · London

35 applications on PlanIndex

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Documents

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

17 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 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 91 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

  • Flat 3 First Floor Osbourne House Moxon Street London W1U 4EZ

    03/03959/ADFULL Submitted 19 May 2003 50 yards away

    Details of refuse storage pursuant to condition 2 of permission dated 27 February 2003 (RN: 02/07983/FULL) for residential conversion.

    Granted Full applications 2 docs

  • Osbourne House Moxon Street London W1U 4EZ

    10/04191/ADFULL Submitted 13 May 2010 50 yards away

    Details of written notification of the start of works pursuant to Condition 5 of planning permission dated 12 February 2010 (RN:09/10481).

    Granted Full applications 5 docs

  • Ashland House Ashland Place London W1U 4AJ

    20/02384/ADFULL Submitted 7 Apr 2020 50 yards away

    Details of all new windows with full size sections of the frames and glazing bars pursuant to Condition 7 of planning permission dated 24th October 2018 (RN:18/06607)

    Granted Full applications Windows or glazing 9 docs

  • Ashland House Ashland Place London W1U 4AJ

    20/02290/ADFULL Submitted 2 Apr 2020 50 yards away

    Detailed samples of the facing materials you will use, including elevations and roof plans annotated to show where the materials are to be located pursuant to condition 11 of planning permission dated 25th October 2018 (RN:18/06608).

    Granted Full applications 12 docs

  • Ashland House Ashland Place London W1U 4AJ

    07/08399/FULL Submitted 25 Sep 2007 50 yards away

    Erection of fourth floor roof extension to provide additional residential accommodation to two existing flats below together with lift overrun at roof level.

    Withdrawn Full applications New dwelling Extension 23 docs

  • Ashland House Ashland Place London W1U 4AJ

    07/04694/FULL Submitted 29 May 2007 50 yards away

    Reconfiguration of existing residential (Class C3) and office (Class B1) floorspace at part ground floor of Ashland House, enclosure of rear basement courtyard with a glass roof and external alterations (site includes No. 20 Moxon Street).

    Granted Full applications 10 docs

In Westminster

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  • 26/06297/FULL Awaiting decision

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    Received 15 Sep, published by the council 17 Sep 2026 Full applications
  • 26/06294/FULL Awaiting decision

    15 Eaton Mews South London SW1W 9HP

    Installation of railings and sliding lantern light at main roof level in connection with the use of the roof as a terrace.

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06317/FULL Awaiting decision

    124 Hamilton Terrace London NW8 9UT

    Replacement of existing first-floor sash windows to the front and rear elevations with traditionally detailed painted timber, slim-profile double-glazed sash windows. (Linked to 26/06318/LBC)

    Received 15 Sep, published by the council 22 Sep 2026 Full applications
  • 26/06273/FULL Awaiting decision

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    Installation of natural Portland Stone paving to two front entrances. (Linked to 26/05473/LBC)

    Received 14 Sep, published by the council 22 Sep 2026 Full applications