St Dunstan's College is a co-educational independent school in Catford, London, England. It is a member of the Headmasters' and Headmistresses' Conference, and was an all-boys establishment until 1994. Located on an urban site in Lewisham, many additions have been made to the original Victorian building complex, including a large glass-walled dining hall utilising a hyperbolic paraboloid roof requiring no internal supports, the prototype for a similar structure in the city of Calgary in Alberta in Western Canada. More information on the Wikipedia page [1]