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Planning application

11 Seymour Mews London W1H 6BE

Withdrawn Westminster 05/09325/CAC Conservation Area Consent Appl (CAC)

Works: Demolition

Withdrawn before a decision, so it carries no planning weight. A revised scheme can be submitted at any time.

Proposal

Demolition of internal partitions, internal staircases in No. 11 and internal party wall of Nos. 15 and 16. Removal of internal fabric to create large open plan area for Nos. 15-16. Refurbishment of roof structure to Nos. 15 and 16.

As published by the council, reference 05/09325/CAC

Application record

Reference
05/09325/CAC
Type
Conservation Area Consent Appl (CAC)
Status
Withdrawn
Decision
Withdrawn As published: Application Withdrawn
Received
15 Nov 2005
Validated
15 Nov 2005
Decided
9 Jan 2006
Ward
Marylebone High Street
Postcode
W1H 6BE

Site history

Applications at this address on the Westminster register

This site has had 4 applications since 2005: 2 approved, 0 refused.

  • 06/00799/CAC Granted

    11 Seymour Mews London W1H 6BE

    Substantial demolition behind retained facades.

    Decided 16 Nov 2006 Heritage and listed buildings
  • 06/00798/FULL Granted

    11 Seymour Mews London W1H 6BE

    i) External alterations in connection with use of No. 11 as a 2x bedroom house.ii) Demolition behind retained facade of Nos. 15 and 16 to be used for office purposes. (Part of a use swap with 18 and 20 Seymour Place)

    Decided 16 Nov 2006 Full applications
  • 05/08944/FULL Withdrawn

    11 Seymour Mews London W1H 6BE

    External alterations to 11, 15 and 16 Seymour Mews to provide residential (1x2 bed maisonette) and office (Class B1) accommodation.

    Decided 9 Jan 2006 Full applications

Timeline

Dates from the published record

  1. 15 Nov 2005

    Received by Westminster

  2. 9 Jan 2006

    Decision issued: Application Withdrawn

  3. 29 Jul 2026

    Added to PlanIndex

Documents

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

4 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 documents

What withdrawal means

The applicant withdrew this application before Westminster decided it, and is free to submit a revised scheme at any time. More in our guide to what happens after a planning decision.

About heritage and listed building applications

Listed building consent is needed for works that affect the special interest of a listed building, and carrying out such works without it is a criminal offence. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • 11 Seymour Mews London W1H 6BE

    06/00799/CAC Submitted 2 Feb 2006 50 yards away

    Substantial demolition behind retained facades.

    Granted Heritage and listed buildings Demolition 3 docs

  • 11 Seymour Mews London W1H 6BE

    06/00798/FULL Submitted 2 Feb 2006 50 yards away

    i) External alterations in connection with use of No. 11 as a 2x bedroom house.ii) Demolition behind retained facade of Nos. 15 and 16 to be used for office purposes. (Part of a use swap with 18 and 20 Seymour Place)

    Granted Full applications Demolition 17 docs

  • 6 Seymour Mews London W1H 6BE

    25/04662/ADFULL Submitted 7 Jul 2025 50 yards away

    Details of Code of Construction Practice pursuant to Condition 3 of planning permission dated 05 September 2024 (RN24/02777/FULL)

    Granted Full applications 9 docs

  • 11 Seymour Mews London W1H 6BE

    05/08944/FULL Submitted 2 Nov 2005 50 yards away

    External alterations to 11, 15 and 16 Seymour Mews to provide residential (1x2 bed maisonette) and office (Class B1) accommodation.

    Withdrawn Full applications 15 docs

  • 9 Seymour Mews London W1H 6BE

    25/05476/FULL Submitted 5 Aug 2025 50 yards away

    Replacement of existing single glazed timber windows with new double glazed windows.

    Granted Full applications Windows or glazing 8 docs

  • 6 Seymour Mews London W1H 6BE

    25/09319/NMA Submitted 23 Dec 2025 50 yards away

    Amendments to planning permission dated 5th September 2024 (RN: 24/02777/FULL) for External alterations, extension at ground floor, excavation to provide new basement, and the installation of an air source heat pump; all to enlarge and alter dwellinghouse (Class C3) namely; to alter the colours of the front ground floor facade elements (the main entrance door, garage door, windows, and rendered lintel).

    Granted Amendments Extension Windows or glazing 9 docs
    Domestic

In Westminster

  • 26/04878/LBC Decided

    34 Grosvenor Street London W1K 4QU

    Internal works to facilitate the subdivision of 34 Grosvenor Street and 3 Three Kings Yard

    Received 21 Jul, published by the council 1 Aug 2026 Heritage and listed buildings
  • 26/06299/LBC Awaiting decision

    Apartment 33 24 Park Crescent London W1B 1AA

    Alterations to internal partitions, door openings, doors and floor finishes.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06305/LBC Awaiting decision

    33A Dean Street London W1D 4PP

    Installation of new concrete slab with drainage channels at basement level and new fire surround in B.01.

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/06318/LBC 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 26/06317/FULL)

    Received 15 Sep, published by the council 22 Sep 2026 Heritage and listed buildings
  • 26/04141/LBC Decided

    80E Randolph Avenue London W9 1BG

    Replacement of sashes in two front windows at 2nd floor level and one rear window with slimline double glazed timber sashes. (Linked with 26/04142/FULL)

    Received 23 Jun, published by the council 21 Jul 2026 Heritage and listed buildings