About Us

CBS Architectural Services is a partnership run by Calvin and Marian Birkett-Stubbs. Calvin deals with the design and planning and Marian deals with the finance, marketing and administration.

Calvin is a Chartered Architectural Technologist (MCIAT) and is included on The Chartered Institute of Architectural Technologists’ (CIAT) Practice Register.  

Marian and Calvin Birkett-Stubbs

Marian and Calvin Birkett-Stubbs

Calvin has nearly 40 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 throughout Norfolk, Suffolk and north Essex in a diverse range of settings, including office premises, private housing developments, public buildings, schools, crematoria and industrial and waste recycling buildings. Calvin also has extensive practical building experience, having undertaken numerous building projects at homes he has resided in over the years, giving him greater insight into the practical application of building design than if he been an entirely desk-bound architectural designer.

Marian’s professional career has been primarily within the Voluntary and Community Sector, first working as a volunteer around family commitments and later, at management level, supporting the activities of voluntary and community organisations within the south Suffolk area with such matters as fundraising, best practice and volunteer recruitment. She has a BA (Hons) degree in Social Policy, as well as qualifications in Business Studies and Adult Learning, giving her the necessary aptitude and skills for dealing with CBS Architectural Services’ financial management, marketing and administration.

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