About Us

CBS Architectural Services was launched in 2012 as a partnership run by Calvin and Marian Birkett-Stubbs. Calvin deals with the design and planning side of the business and Marian deals with the finance, marketing and administration.

Up until 2020 CBS Architectural Services operated in the East of England (principally in the counties of Suffolk and Norfolk). Since this time Calvin and Marian have relocated their business to West Wales. They have a home a few miles from Cardigan, which they are currently renovating.

Calvin and Marian Birkett-Stubbs  

Calvin has over 30 years’ experience of building design and construction management, working at Norwich City Council, Norfolk County Council, NPS Property Consultants Ltd and, early on in his career, a number of private architectural practices. 

During his career, Calvin has undertaken numerous projects in a diverse range of settings, including office premises, private housing developments, public buildings, schools, crematoria and waste recycling buildings.

During the time since CBS Architectural Services was launched, Calvin has undertaken almost 100 projects that have helped clients improve their homes or premises, which have included the conversion of a barn into residential accommodation, a large disused storage shed into a gym, a new toilet block for a community building, and additional classroom space for a pre-school nursery. Other projects have included side and rear house extensions, new porches, garden studios and internal remodelling that allows clients to make better use of the space they have available in their homes.

Marian’s professional career has been primarily within the Voluntary and Community Sector at management level, supporting the activities of voluntary and community organisations with such matters as fundraising, best practice and volunteer recruitment. She has a BA (Hons) degree in Early Childhood Development and Social Policy, as well as qualifications in Business Studies and Adult Learning.

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