This innovative new system utilises thicker wall stud components from 140mm up to 300mm deep to vastly improve heat retention. Utilising clear span floor cassettes, up to 6m wide, this gives living space flexibility attic trusses or roof panels offer room in roof accommodation in lieu of standard trusses. This frees up valuable loft accommodation and quickens the build process designed for whole life cycle costing. This system is viewed on its overall whole lifecycle cost base and not capital cost. Complimented with innovative, local, green, sustainable and energy efficient materials this system allows for maximising the extent of off-site assembly in a environmentally responsible approach.