One Canada Square the recycling of waste heat to cool and warm the building. Aggregates used in the office build were from predominantly recycled sources, part of a strategy to integrate sustainable products and materials throughout the site, delivering both affordable and sustainable environmentally friendly features to the building. One Canada Square energy performance has improved by decreasing 30% from 2007 to 2016 by initiatives such as installing LEDs and upgrading HVAC and water services. The ground floor, foyer area and basement levels of One Canada Square are open to the general public, having an underground retail area and a transport interchange from
8 Canada Square 8 Canada Square 8 Canada Square (also known as the HSBC Tower) is a skyscraper in Canary Wharf, London. The building serves as the global headquarters of the HSBC Group. Sir Norman Foster’s team of architects designed the tower, which was built between January 1999 and 2002 by Canary Wharf Contractors. Upon completion, it stood at 200 metres high, or 656 feet. The 42 above-ground floors housed around 8,000 HSBC staff members. Their first day of work in the new building was 2 September 2002, and the grand opening followed on 2 April 2003. With the movement of HSBC Group's