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Planning application

Halcyon London International School 33 Seymour Place London W1H 5AP

Decided Westminster 26/03579/ADV Advertising

Decided. The decision notice on the council portal carries the outcome in full, including any conditions.

Proposal

Display of two non illuminated board signs on railings measuring 1.25m x 5.5m and two non illuminated projecting banner signs measuring 5m x 0.75m.

As published by the council, reference 26/03579/ADV

Application record

Reference
26/03579/ADV
Category
Advertising
Status
Decided
Received
1 Jun 2026
Validated
1 Jun 2026
Ward
Marylebone
Postcode
W1H 5AP

Site history

Applications at this address on the Westminster register

This site has had 2 applications since 2025.

  • 25/08138/ADLBC Awaiting decision

    Halcyon London International School 33 Seymour Place London W1H 5AP

    Detailed drawings (scaled sections and elevations) of the stained-glass light boxes & fixing details pursuant to condition 3 of listed building dated 3rd February 2025 (RN:24/08169/LBC)

    Submitted 7 Nov 2025 Conditions

Timeline

Dates from the published record

  1. 1 Jun 2026

    Received by Westminster

  2. 21 Jul 2026

    Added to PlanIndex

  3. 21 Sep 2026

    Status changed to Decided

    Previously Pending.

Documents

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

7 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.

Watch members (£5 a month) open the document list from here.

Open the documents

After the decision

Westminster has decided this application; the outcome above is the register's own wording and the decision notice on the council portal carries the detail. More in our guide to what happens after a planning decision.

About advertisement consent applications

Advertisement consent is judged on two things only: amenity and public safety, not competition or other planning considerations. More in our guide to planning application types.

Nearby applications

Within 0.3 miles

  • Halcyon London International School 33 Seymour Place London W1H 5AP

    25/08138/ADLBC Submitted 7 Nov 2025 50 yards away

    90% historically approved · decision due ~2 Jan

    Detailed drawings (scaled sections and elevations) of the stained-glass light boxes & fixing details pursuant to condition 3 of listed building dated 3rd February 2025 (RN:24/08169/LBC)

    Awaiting decision Conditions 6 docs
  • 34 Upper Berkeley Street London W1H 5QE

    26/00626/LBC Submitted 3 Feb 2026 50 yards away

    Installation of replacement internal and external doors and fencing / gate on Stourcliffe Street. (Linked with 26/00625/FULL)

    Granted Heritage and listed buildings 2 docs
  • 34 Upper Berkeley Street London W1H 5QE

    26/00625/FULL Submitted 3 Feb 2026 50 yards away

    Installation of replacement external doors and fencing / gate on Stourcliffe Street. (Linked with 26/00626/LBC)

    Granted Full applications 7 docs
  • 10 Wythburn Court Seymour Place London W1H 7NS

    26/02794/FULL Submitted 27 Apr 2026 50 yards away

    87% historically approved · decision due ~3 Jul

    The replacement of three rooflights with two lead clad dormers with full height windows and juliet balcony.

    Awaiting decision Full applications Loft or dormer Windows or glazing 10 docs
  • 27 Upper Berkeley Street London W1H 7QN

    26/05569/LBC Submitted 14 Aug 2026 50 yards away

    90% historically approved · decision due ~30 Oct

    External alterations to the shopfront and facade comprising repainting of the facade, window frames, sills and doors in Dulux Trade Weathershield, 'Coral Pink', satin finish; installation of two Greenwich-style retractable fabric awnings, one to each elevation, each recessed within the existing fascia into a housing box, with fabric and metalwork colour finishes to be confirmed and awning supplier prior to installation; installation of a single non-illuminated projecting sign comprising a cherry powder-coated metal bracket and top support (colour finish to be confirmed) and a cherry red painted timber sign (colour matched to RAL 3018), fixed at 45 degrees to the corner of the shopfront fascia, with a fret-cut metal logo. (Linked to 26/06047/FULL& 26/05569/LBC)

    Awaiting decision Heritage and listed buildings Windows or glazing 10 docs
  • 26 Upper Berkeley Street London W1H 7QL

    25/07140/LBC Submitted 3 Oct 2025 50 yards away

    Installation of one air conditioning unit to rear elevation and two dome cameras to front and rear facade.

    Refused Heritage and listed buildings 20 docs

In Westminster

  • 26/06444/ADV Awaiting decision

    107 Long Acre London WC2E 9NT

    Display of an internally illuminated (backlit letters only) projecting sign measuring 0.60m x 0.77m on the Neal Street elevation. [Split decision].

    21 Sep 2026 Advertising
  • 26/06296/ADV Awaiting decision

    15 Warwick Way London SW1V 1QT

    Display of Individual soft halo externally illuminated individual brass letters on fascia. Display of externally illuminated hanging sign measuring 40mm x 40mm, including Gilded vinyl decal.

    Received 15 Sep, published by the council 17 Sep 2026 Advertising
  • 26/06070/ADV Granted

    36 Shepherd Market London W1J 7QR

    Display of non-illuminated screen-printed signage to the fabric and valance of retractable canvas awning.

    Received 7 Sep, published by the council 11 Sep 2026 Advertising
  • 26/06304/ADV Awaiting decision

    10 Piccadilly London W1J 0DD

    Display of an externally illuminated advertising area measuring 7.4m x 10.1m and a 1:1 printed image of the building for a temporary period of 15 months.

    Received 15 Sep, published by the council 22 Sep 2026 Advertising
  • 26/05573/ADV Decided

    1 The Piazza Covent Garden London WC2E 8HB

    Display of two platforms measuring 13.6m x 3.6m x 2.263m and 14.61m x 3.6m x 2.263m each featuring three internally illuminated sculptures for a temporary period from 16 October 2026 to 6 January 2027.

    Received 17 Aug, published by the council 22 Aug 2026 Advertising