At a height of 278 m (912 ft), 22 Bishopsgate is the tallest skyscraper in the City of London and the tallest skyscraper worldwide that features a particularly sustainable Closed Cavity Façade (CCF). Gartner cladded the office tower with 67,000 sqm (721,200 sq ft) of closed double-skin façade with story-high units that are limited to a minimum depth not exceeding 250 mm (9 27/32”). The closed cavity of the highly transparent glass units accommodates motorized dual-color Venetian blinds providing sun and glare protection. The 23-sided, faceted glass body is shaped to respect the town-scape views and makes a strong and calm backdrop to the surrounding towers and to the neighboring historic buildings of the Bank of England. The story-high (4,040 mm / 159 1/16”, 3,550 mm / 139 49/64” or 3,890 mm / 153 5/32”) façade units with their individual widths feature structural glazing sealing and Low-E coating on the inside and LSG panes with selective coating on the outside which are glued directly to the thermally broken framework without carrier frame.