33 Glasshouse Street London W1B 5DG

This site has had 3 applications since 2026.

• 26/06458/LBC Awaiting decision

  33 Glasshouse Street London W1B 5DG

  External alterations at sixth floor roof level, including the removal of the existing plant room roof and enlargement of existing openings to create amenity terraces, together with the formation of a new door and windows to the Cupola room on the Glasshouse Street elevation. Installation of an external decking system with integrated balustrades, planters and seating, and other associated works. (Linked to 26/06457/FULL)

  Submitted 21 Sep 2026 Heritage and listed buildings
• 26/06021/LBC Decided

  33 Glasshouse Street London W1B 5DG

  Alterations to part of the ground and basement levels in connection with improvements to the end-of-trip facilities, including the infilling of existing openings, the introduction of a new opening and door, the installation of new partitions, dropped ceilings and a cavity drainage system, together with other associated works

  Submitted 3 Sep 2026 Heritage and listed buildings

1. 21 Sep 2026

   Received by Westminster

2. 29 Sep 2026

   Added to PlanIndex

3. Decision

   Awaiting decision

   Decision expected by 16 November 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 86 days over the applications it decided in the last year.

1 later application on the register refers to this one:

• 26/06458/LBC Awaiting decision

  33 Glasshouse Street London W1B 5DG

  External alterations at sixth floor roof level, including the removal of the existing plant room roof and enlargement of existing openings to create amenity terraces, together with the formation of a new door and windows to the Cupola room on the Glasshouse Street elevation. Installation of an external decking system with integrated balustrades, planters and seating, and other associated works. (Linked to 26/06457/FULL)

  Submitted 21 Sep 2026 Heritage and listed buildings

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 119 days. More in our guide to how long planning decisions take.

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.

• 33 Glasshouse Street London W1B 5DG

  26/06458/LBC Submitted 21 Sep 2026 50 yards away

  90% historically approved · decision due ~16 Nov

  External alterations at sixth floor roof level, including the removal of the existing plant room roof and enlargement of existing openings to create amenity terraces, together with the formation of a new door and windows to the Cupola room on the Glasshouse Street elevation. Installation of an external decking system with integrated balustrades, planters and seating, and other associated works. (Linked to 26/06457/FULL)

  Awaiting decision Heritage and listed buildings Windows or glazing

• 33 Glasshouse Street London W1B 5DG

  26/06021/LBC Submitted 3 Sep 2026 50 yards away

  90% historically approved · decision due ~29 Oct

  Alterations to part of the ground and basement levels in connection with improvements to the end-of-trip facilities, including the infilling of existing openings, the introduction of a new opening and door, the installation of new partitions, dropped ceilings and a cavity drainage system, together with other associated works

  Decided Heritage and listed buildings

• 100 Regent Street London W1B 5SR

  25/07793/ADV Submitted 28 Oct 2025 50 yards away

  Display of one externally illuminated projecting sign measuring 0.45m x 0.65m, one non illuminated fascia sign measuring 0.15m x 1.2m and two non illuminated plaque signs measuring 0.14m x 0.59m.

  Granted Advertising 8 docs

• Venture House 27 - 29 Glasshouse Street London W1B 5DF

  25/06134/ADV Submitted 28 Aug 2025 50 yards away

  Display of non illuminated hoarding measuring 40.915m x 2.440m on Regent street and non illuminated hoarding measuring 12.48m x 2.440m on Glasshouse Street and green wall measuring 2m x 42m for a temporary period from October 2025 to February 2027.

  Granted Advertising 14 docs

• Venture House 27 - 29 Glasshouse Street London W1B 5DF

  25/07824/NMA Submitted 29 Oct 2025 50 yards away

  Amendments to planning permission dated 4th April 2024 (RN 24/00846/FULL) for the Replacement of the existing shopfronts on the Regent Street frontage, alongside the internal refurbishment and subdivision of the basement and ground floor retail units (Use Class E), and associated works NAMELY, reconfiguration of the basement and ground floor layouts, and associated additional demolition works; internal relocation of UKPN hatch; and introduction of Dry Riser Inlet to the Regent Street façade.

  Granted Amendments Demolition 23 docs

• Venture House 27 - 29 Glasshouse Street London W1B 5DF

  25/08572/NMA Submitted 24 Nov 2025 50 yards away

  Amendments to planning permission dated 29th July 2025 (RN:25/03848/FULL) for replacement of the existing steel windows with a new bespoke windows including associated internal and external works, namely to incorporate six additional windows at fifth floor level on the Glasshouse Street façade

  Granted Amendments Windows or glazing 16 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
• 26/06134/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
• 26/07193/FULL Awaiting decision

  98 Victoria Street London SW1E 5JL

  Shopfront alterations. (Linked with 26/07194/ADV)

  Received 21 Oct, published by the council 22 Oct 2026 Full applications
• 26/07187/FULL Awaiting decision

  Ground Floor Flat 151 Portnall Road London W9 3BN

  Erection of a single storey rear extension.

  Received 21 Oct, published by the council 22 Oct 2026 Full applications