The existing frontage of the Queen’s Theatre is now, according to the theatre's own planning assessment, a tired appearance with an insufficient security system.
The Westminster City Council planning application proposes to upgrade the glass frontage and replace it all with a considerably more robust installation, without changing the current appearance on the building.
You can view the plans yourself at:
City of Westminster - Planning applications
Replacement of Foyer Doors and Thresholds to Queen’s Theatre Design and Access Statement