The Westbury Hotel 37 Conduit Street London W1S 2YF

This site has had 17 applications since 2022: 7 approved, 2 refused.

• 26/06518/ADFULL Awaiting decision

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Details of new windows, metal and stone framework for the Conduit Street facade pursuant to condition 15 of planning permission dated 15 November 2024 (RN: 24/02402/FULL).

  Submitted 23 Sep 2026
• 26/05770/ADFULL Decided

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Details of a supplementary acoustic report pursuant to condition 7 of Planning Permission dated 25th February 2025 (RN:24/08569).

  Submitted 24 Aug 2026
• 26/05771/ADFULL Decided

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Details of a supplementary acoustic report pursuant to condition 7 of planning permission dated 24th June 2026 (RN:26/01630/FULL).

  Submitted 24 Aug 2026
• 26/02089/ADFULL Awaiting decision

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Detailed drawings showing the following alteration to the scheme: a planting scheme within the new terrace at ninth floor level pursuant to condition 10 of planning permission dated 29th November 2024 (RN: 24/06866/FULL).

  Submitted 30 Mar 2026 Full applications
• 26/02090/ADFULL Awaiting decision

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Details of windows and the metal and stone framework pursuant to Condition 15 of planning permission dated 15/11/2024 (RN: 24/02402/FULL)

  Submitted 30 Mar 2026 Full applications
• 26/01630/FULL Awaiting decision

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Variation of Condition 18 of planning permission dated 15th November 2024 (RN 24/02402/FULL) for: Excavation of extension to provide a second basement level, demolition and re-build of the 6th and 7th floors and extension to form new 8th floor, erection of rear extension from ground to new 8th floor level, all to enlarge existing hotel (Class C1). External alterations including alterations to the appearance of the existing facades namely, to amend the wording of Condition 18 to require that prior to occupation, a contribution be made to the Historic England Records enhancement project by way of inputting new data for the Civil War Defences for the 41 identified sites surrounding Westbury Hotel as identified within the search area of the WSI Addendum dated 04/02/2026.

  Submitted 12 Mar 2026 Full applications
• 26/00922/ADFULL Awaiting decision

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Details of Public Art pursuant to Condition 19 of planning permission dated 15/11/2024 (RN: 24/02402/FULL)

  Submitted 13 Feb 2026 Full applications
• 26/00722/NMA Granted

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Amendments to planning permission dated 25 February 2025 (RN: 24/08569/FULL ) for External alterations including the installation of a plant tower at 1st to 4th floor level (with an external stair) within the north-eastern lightwell, installation of plant within a louvred enclosures at rear 1st floor level, installation of plant and associated louvred enclosures (with photovoltaics above) together with associated pipework and ducting, automatic opening vents and smoke extractors above at main roof level (9th floor) and to the roof of the 9th floor accommodation and installation of 3no. satellite dishes at main roof level (9th floor). NAMELY, to remove GRP enclosure on the roof of the 9th floor and replace with switchboard.

  Decided 9 Mar 2026 Amendments
• 26/00721/NMA Granted

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Amendments to planning permission dated 29 November 2024 (RN: 24/06866/FULL) for Erection of a ninth floor extension with terraces accessible from the new accommodation. Erection of a fire escape stair/hatch and installation of railing to fire escape route at ninth floor level. Installation of photovoltaics to ninth floor and to the roof of additional accommodation. All in connection with the enlargement and retrofit of the existing hotel (Class C1). NAMELY, to alter the approved balustrade around the roof terrace from metal to glass, alter access point to terrace

  Decided 12 Mar 2026 Amendments
• 26/00720/ADV Granted

  The Westbury Hotel 37 Conduit Street London W1S 2YF

  Display of 1x flag with branding over entrance canopy measuring 0.91m x 1.83, 1x internally illuminated (LED edge) fascia sign measuring 1.2m x 0.27m and two non-illuminated entrance signs measuring 0.47m x 0.7m and 0.42m x 0.42m

  Decided 18 Mar 2026 Advertising

1. 20 Nov 2025

   Received by Westminster

2. 21 Jan 2026

   Decision issued: Application Refused

3. 20 Aug 2026

   Added to PlanIndex

Westminster refused this application for the reasons on the decision notice; only the applicant can appeal, and refused schemes often return in revised form. More in our guide to what happens after a planning decision.

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.

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  26/05770/ADFULL Submitted 24 Aug 2026 50 yards away

  89% historically approved · decision due ~19 Oct

  Details of a supplementary acoustic report pursuant to condition 7 of Planning Permission dated 25th February 2025 (RN:24/08569).

  Decided

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  26/01630/FULL Submitted 12 Mar 2026 50 yards away

  88% historically approved · decision due ~7 May

  Variation of Condition 18 of planning permission dated 15th November 2024 (RN 24/02402/FULL) for: Excavation of extension to provide a second basement level, demolition and re-build of the 6th and 7th floors and extension to form new 8th floor, erection of rear extension from ground to new 8th floor level, all to enlarge existing hotel (Class C1). External alterations including alterations to the appearance of the existing facades namely, to amend the wording of Condition 18 to require that prior to occupation, a contribution be made to the Historic England Records enhancement project by way of inputting new data for the Civil War Defences for the 41 identified sites surrounding Westbury Hotel as identified within the search area of the WSI Addendum dated 04/02/2026.

  Awaiting decision Full applications Extension Demolition 6 docs

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  26/06518/ADFULL Submitted 23 Sep 2026 50 yards away

  89% historically approved · decision due ~18 Nov

  Details of new windows, metal and stone framework for the Conduit Street facade pursuant to condition 15 of planning permission dated 15 November 2024 (RN: 24/02402/FULL).

  Awaiting decision Windows or glazing

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  26/02089/ADFULL Submitted 30 Mar 2026 50 yards away

  88% historically approved · decision due ~25 May

  Detailed drawings showing the following alteration to the scheme: a planting scheme within the new terrace at ninth floor level pursuant to condition 10 of planning permission dated 29th November 2024 (RN: 24/06866/FULL).

  Awaiting decision Full applications 4 docs

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  22/04725/ADFULL Submitted 14 Jul 2022 50 yards away

  Details of all new windows and metal and stone framework pursuant to Condition 15 (1 & 2) of planning permission dated 09 March 2020 (RN:19/04899/FULL)

  Granted Full applications Windows or glazing 29 docs

• The Westbury Hotel 37 Conduit Street London W1S 2YF

  26/02090/ADFULL Submitted 30 Mar 2026 50 yards away

  88% historically approved · decision due ~25 May

  Details of windows and the metal and stone framework pursuant to Condition 15 of planning permission dated 15/11/2024 (RN: 24/02402/FULL)

  Awaiting decision Full applications Windows or glazing 8 docs

• 26/05984/FULL Decided

  41 Sutherland Street London SW1V 4JX

  Replacement of front, side and rear windows with double glazed timber framed sash windows and replacement of a door with a double glazed timber framed door.

  Received 2 Sep, published by the council 11 Sep 2026 Full applications
• 26/07229/FULL Awaiting decision

  5 D'arblay Street London W1F 8DL

  Painting of the shopfront facade and alterations to the existing fixed windows to form two openable sash windows. (Linked with 26/07230/ADV)

  Received 22 Oct, published by the council 26 Oct 2026 Full applications
• 26/07224/FULL Awaiting decision

  8 Hinde Street London W1U 3BQ

  Use of the building as an Embassy (sui generis) with reversion to Class E on cessation of occupation by the Government of the United Mexican States. Erection of a flagpole to front elevation.

  Received 22 Oct, published by the council 26 Oct 2026 Full applications
• 26/06134/FULL Decided

  Flat 10H Hyde Park Mansions Cabbell Street London NW1 5BG

  Replacement of front and rear second floor level windows with slim-profile double-glazed panels, retaining the existing window and door frames.

  Received 8 Sep, published by the council 15 Sep 2026 Full applications
• 26/07258/FULL Awaiting decision

  16A Croxley Road London W9 3HL

  Installation of air to air heat pumps to offices and bedrooms.

  Received 22 Oct, published by the council 23 Oct 2026 Full applications