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Planning application

1 Cavendish Square London W1G 0LA

Granted Westminster 26/00756/ADV Advert Application (ADV)

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

Proposal

Display of 1x non-illuminated surface mounted low level sign adjacent to the entrance door measuring 1.2m x 0.9m 1x halo illuminated fascia sign measuring 2.2m x 0.65m and two internally illuminated hanging signs measuring 1m x 0.8m

As published by the council, reference 26/00756/ADV

Application record

Reference
26/00756/ADV
Type
Advert Application (ADV)
Status
Decided
Decision
Granted As published: Application Permitted
Received
9 Feb 2026
Validated
27 Feb 2026
Decided
29 Apr 2026
Ward
West End
Decision by
Delegated Decision
Postcode
W1G 0LA

Site history

Applications at this address on the Westminster register

This site has had 6 applications since 2025: 6 approved, 0 refused.

  • 25/07814/LBC Granted

    1 Cavendish Square London W1G 0LA

    Installation of fibre optic cables along the lightwell street wall in existing tray work into basement comms room.

    Decided 19 Feb 2026 Heritage and listed buildings
  • 25/06203/FULL Granted

    1 Cavendish Square London W1G 0LA

    Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL) for the Opening up to basement areas, lowering of floor in pavement vaults and corridors to increase the useable space, additional opening up to eastern ground floor area, forming of services voids to accommodate plant and equipment, reopening of existing skylight apertures to existing pitched roof for ventilation of services, alterations to eastern facade to accommodate a new plant deck, WC accommodation and small terrace, in -connection with the use of building as a restaurant/drinking establishment (Sui Generis) namely, to extend hours of opening. Application under S73 of the Act

    Decided 27 Oct 2025 Full applications
  • 25/05570/ADLBC Granted

    1 Cavendish Square London W1G 0LA

    Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)

    Decided 4 Nov 2025 Conditions
  • 25/04627/LBC Granted

    1 Cavendish Square London W1G 0LA

    Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

    Decided 16 Sep 2025 Heritage and listed buildings
  • 25/04626/FULL Granted

    1 Cavendish Square London W1G 0LA

    Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

    Decided 16 Sep 2025 Full applications

Timeline

Dates from the published record

  1. 9 Feb 2026

    Received by Westminster

  2. 27 Feb 2026

    Validated

    Checked as complete and ready for consideration.

  3. 29 Apr 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

Osel Architecture Ltd. Agent, an architecture practice registered in London

Active · incorporated 1996 · London

40 applications on PlanIndex · across 8 councils · 92% granted

Trade members see everything this firm has filed, how it was decided, and get an email the day it files again.

See their track record

Documents

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

12 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.

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What this grant of permission means

Westminster granted permission on 29 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 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

  • 1 Cavendish Square London W1G 0LA

    25/07814/LBC Submitted 28 Oct 2025 50 yards away

    Installation of fibre optic cables along the lightwell street wall in existing tray work into basement comms room.

    Granted Heritage and listed buildings 9 docs

  • 1 Cavendish Square London W1G 0LA

    25/06203/FULL Submitted 1 Sep 2025 50 yards away

    Variation of Condition 13 of planning permission dated 20th April 2023 (RN: 22/07690/FULL) for the Opening up to basement areas, lowering of floor in pavement vaults and corridors to increase the useable space, additional opening up to eastern ground floor area, forming of services voids to accommodate plant and equipment, reopening of existing skylight apertures to existing pitched roof for ventilation of services, alterations to eastern facade to accommodate a new plant deck, WC accommodation and small terrace, in -connection with the use of building as a restaurant/drinking establishment (Sui Generis) namely, to extend hours of opening. Application under S73 of the Act

    Granted Full applications 19 docs

  • 1 Cavendish Square London W1G 0LA

    25/04627/LBC Submitted 4 Jul 2025 50 yards away

    Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

    Granted Heritage and listed buildings 16 docs

  • 1 Cavendish Square London W1G 0LA

    25/04626/FULL Submitted 4 Jul 2025 50 yards away

    Installation of surface mounted uplighters and associated alterations on the Margaret Street elevation of the building. (Linked with 25/04627/LBC and 25/04625/ADV).

    Granted Full applications 20 docs

  • 2 Cavendish Square London W1G 0PA

    25/08049/FULL Submitted 5 Nov 2025 50 yards away

    Removal of existing plant equipment. Installation of new air source heat pump, two new air conditioning units and relocation of four existing air conditioning units within existing plant enclosure at roof level. Associated alterations to lift atrium roof.

    Granted Full applications 21 docs

  • 1 Cavendish Square London W1G 0LA

    25/05570/ADLBC Submitted 8 Aug 2025 50 yards away

    Details of new windows and roof lights pursuant to Condition 5(B) PART of Listed Building Consent dated 03 September 2024 (RN23/08101/LBC)

    Granted Conditions Loft or dormer Windows or glazing 7 docs

In Westminster

  • 26/07474/ADV Awaiting decision

    456 - 459 Strand London WC2R 0RG

    Display of non illuminated fascia sign measuring 4.3m X 0.9m, 5.1m X 0.9m, externally illuminated fascia sign 4.5m X 0.9m, externally illuminated projecting sign 0.8m X 0.65m, non illuminated 3mm vinyl measuring 2m X 2.6m, 0.8m X 1.7m and internally illuminated New digital/connected Screen 0.8m X 1.6m

    Received 3 Nov, published by the council 6 Nov 2026 Advertising
  • 26/07436/ADV Awaiting decision

    Unit 1 123 Bayswater Road London W2 3JH

    Display of 2 x externally illuminated fascias signs each measuring 0.335m x 1.00m.

    Received 2 Nov, published by the council 5 Nov 2026 Advertising
  • 26/07441/ADV Awaiting decision

    2 Charing Cross Road London WC2H 0HH

    Display of externally illuminated hanging sign measuring 10.34m X 2.9m and externally illuminated festoon lights cable measuring 0.04m X 7.5m

    Received 2 Nov, published by the council 5 Nov 2026 Advertising
  • 26/07429/ADV Awaiting decision

    24 - 25 Mount Street London W1K 2RR

    Display of Christmas decorations to the front facade at ground floor level for a temporary period from 18 December 2026 to 9 January 2027.

    Received 2 Nov, published by the council 4 Nov 2026 Advertising
  • 26/07439/ADV Awaiting decision

    5 - 6 Leicester Square London WC2H 7NA

    Display of internally illuminated fascia sign measuring 3.25m X 1.132m and 14.5m X 1.132m

    Received 2 Nov, published by the council 5 Nov 2026 Advertising