cl-architecture limited


At cl-a we pride ourselves on our ability to listen to the client and develop a thorough understanding of their needs. This enables us to provide an intelligent response uniquely suited to the project context and our client’s aspirations. We seek to optimise the quality of every space through simplicity, honesty and efficiency in design, whilst also creating spaces to stimulate, for the building users to enjoy. Our creativity is enriched by pragmatism, informed by our experience.

We believe that architects play a key role in minimising the impact that both the construction and operation of buildings have on the environment. Sustainable and low-energy strategies are at the core of our ethos.

cl-a was set up by Catriona Longwill after several years as a sole practitioner. Catriona has undertaken a broad range of architectural services on residential, commercial, education, community and healthcare projects.   Catriona is supported by an architectural technician and an office administrator.

Catriona previously worked at Norwich and London based LSI Architects for nine years, where her responsibilities included the design and realisation of a number of notable projects in Norfolk and further afield.   These include: The Sheringham Shoal Wind Farm Administration Base in Egmere; the new Sports Hall and Performing Arts Facility at Town Close House Preparatory School in Norwich; new boarding accommodation for The Harefield Academy in Uxbridge; a series of new-build office buildings, a manmade lake and an amenity building at Broadland Business Park in Norwich.   Her roles involved project delivery, leading the consultant team, contract administration and site supervision.   

Prior to this, Catriona spent a year with Cowper Griffith Associates in Cambridge, where she was involved in numerous residential projects in Cambridgeshire and North Norfolk, in both urban and rural settings.

Catriona is registered with the Architects Registration Board (ARB), and is also a member of the Royal Institute of British Architects (RIBA), The Society for the Protection of Ancient Buildings (SPAB), and the Town and Country Planning Association (TCPA).