Baltic Exchange (building) stopped insisting on a full restoration. What remained of Exchange Hall was completely razed in 1998 with the permission of the planning minister John Prescott over the objections of architectural preservationists, including Save Britain's Heritage, who sought a judicial review of his decision. The site, together with that of the Chamber of Shipping at 30–32 St Mary Axe, was used to built 30 St Mary Axe, commonly referred to as "The Gherkin". The stained glass of the Baltic Exchange war memorial, which had only suffered superficial damage in the bomb blast, has been restored and is in the National Maritime
30 St Mary Axe of the building during the summer and warm the building in the winter using passive solar heating. The shafts also allow sunlight to pass through the building, making the work environment more pleasing, and keeping the lighting costs down. The primary methods for controlling wind-excited sways are to increase the stiffness, or increase damping with tuned/active mass dampers. To a design by Arup, its fully triangulated perimeter structure makes the building rigid enough without any extra reinforcements. Despite its overall curved glass shape, there is only one piece of curved glass on the building, the lens-shaped cap at the apex.