The system utilised prefabricated light gauge steel frames which could be built economically up to a maximum of 4 storeys. The frames were finished in a variety of claddings and their modular nature could be employed to produce architecturally satisfying buildings. Initially developed solely for schools, the system was also used to provide offices and housing. Important examples include many of the Hertfordshire schools, some of which have since been listed.
Another notable use of CLASP is the University of York, designed by architect Andrew Derbyshire. A later development was known as SCOLA (Second Consortium of Local Authorities) and MACE (Metropolitan Architectural Consortium for Education). The cynics’ definition of the CLASP acronym, circulating in the 1970s, was «collection of loosely assembled steel parts». Langwith College, University of York. A notable use of the CLASP system. Vanbrugh College, University of York.