One Canada Square of London."" One Canada Square was originally designed to be high at 55 storeys, but that penetrated the permitted projection height of the flight obstruction area of the airport approach district to London City Airport, but this was extended to a height of above kerb level in consideration of the fact that One Canada Square was on the external zone of the airport approach. To comply with air traffic safety regulations, the architects took five floors off the tower. The final height of was permitted, otherwise, the developers would have had to dismantle what was necessary to fit the height
Canada House conferences, receptions, lectures and lunches. The Canada House Gallery stages exhibitions of historical and contemporary art and artefacts. Canada House Canada House () is a Greek Revival building on Trafalgar Square in London. It has been a Grade II* Listed Building since 1970. It has served as the offices of the High Commission of Canada in the United Kingdom since 1925. The building which would later become known as Canada House was built between 1824 and 1827 to designs by Sir Robert Smirke, the architect of the British Museum. It was originally two buildings used by the Union Club and