Planning application
33 Glasshouse Street London W1B 5DG
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)
-
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
Timeline
Dates from the published record
-
21 Sep 2026
Received by Westminster
-
29 Sep 2026
Added to PlanIndex
-
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.
Related applications
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)
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
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
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
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
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
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
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
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