In 1973, before the founding of Buro Happold, Edmund Happold, Ian Liddell, Vera Straka, Peter Rice and Michael Dickson established a lightweight structures research laboratory corresponding to Frei Otto's similar research institute at the university of Stuttgart. Ted Happold was the first to introduce ethylenetetrafluoroethylene (ETFE) as a cladding material, and the outcomes of the research carried out by the laboratory led to the development of the designs for the Mannheim Multihall gridshell and a number of landmark fabric structures in the Middle East and the UK, allowing the new building forms to become generally accepted by architects and clients.