"Chartered Architectural Technologists (MCIAT) provide architectural design services and solutions. They are specialists in the science of architecture, building design and construction and form the link between concept and construction. They negotiate the construction project and manage the process from conception through to completion."
Kevin Smith Architectural Projects > Conversion of Existing Buildings to Alternative Uses
A redundant workshop may become a dwelling or a redundant barn may become office space. You may have a large house that can be converted into flats.