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Planning application

33 Glasshouse Street London W1B 5DG

Awaiting decision Westminster 26/06458/LBC Heritage and listed buildings

Works: Windows or glazing

Relates to 26/06457/FULL

Still open. Anyone can comment while the consultation period runs, and comments go to the council rather than to us.

Proposal

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)

As published by the council, reference 26/06458/LBC

Application record

Reference
26/06458/LBC
Category
Heritage and listed buildings
Status
Pending
Received
21 Sep 2026
Validated
21 Sep 2026
Postcode
W1B 5DG

Site history

Applications at this address on the Westminster register

This site has had 3 applications since 2026.

  • 26/06457/FULL 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 26/06458/LBC)

    Submitted 21 Sep 2026 Full applications
  • 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

Timeline

Dates from the published record

  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.

Cases linked to this one on the register

  • 26/06457/FULL 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 26/06458/LBC)

    Submitted 21 Sep 2026 Full applications

What happens while it is decided

This application is with Westminster for determination, against a statutory target of eight weeks. Over the last year Westminster decided heritage and listed building applications in a median of 119 days. More in our guide to how long planning decisions take.

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

  • 33 Glasshouse Street London W1B 5DG

    26/06457/FULL Submitted 21 Sep 2026 50 yards away

    88% 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 26/06458/LBC)

    Awaiting decision Full applications 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

In Westminster

  • 26/07202/LBC Awaiting decision

    Basement East And Ground Floor And First Floor 33 Weymouth Street London W1G 7BY

    Replacement of 13 doorsets with fire doors.

    Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
  • 26/07183/LBC Awaiting decision

    306 - 308 Regent Street London W1B 3AT

    Installation of a manually operated retractable fabric awning to the existing shopfront at 308 Regent Street, comprising an orange fabric canopy with discreet printed lettering to the front valance, together with associated supporting framework, mounting brackets and fixings to the existing fa?ade.

    Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
  • 26/07191/LBC Awaiting decision

    6 Wilton Place London SW1X 8RH

    Layout alterations and replacement of internal doors.

    Received 21 Oct, published by the council 22 Oct 2026 Heritage and listed buildings
  • 26/07199/LBC Awaiting decision

    49 Queen's Gardens London W2 3AA

    Erection of a mansard roof extension incorporating rooflights and a rear balcony; installation of Juliet balconies at ground and first floor levels to the rear; demolition of the existing courtyard extension and erection of a single-storey infill extension; extension of the rear wing at first floor (mezzanine) and second floor levels; fenestration alterations including the installation of new windows; stucco repairs and partial rebuilding of the rear extensions; and associated internal alterations at all levels. (Linked to 26/07198/FULL)

    Received 21 Oct, published by the council 23 Oct 2026 Heritage and listed buildings
  • 26/07192/LBC Awaiting decision

    119 Warwick Way London SW1V 4HS

    Conversion and internal alterations to the ground floor flat (Retrospective)

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