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
Macdonald House, London property. The project involved the demolition of Macdonald House and disassembly of its façade, which will be rebuilt to become the façade of the new building. The developer is recreating the Neo-Georgian architecture of Macdonald House in a new, high-end residential building called No.1 Grosvenor Square. Macdonald House, London Macdonald House was a seven-storey Neo-Georgian style building on Grosvenor Square in Mayfair, London. It was part of the High Commission of Canada from 1961 to 2014. Macdonald House was used for the High Commission's cultural and consular functions, trade and administrative sections, immigration section, and as the High Commissioner's official