We are located within historic downtown Lowell, MA overlooking the Concord River.  Lowell is a fitting choice for a firm rooted in making; considered the cradle of the American Industrial Revolution, where skill, hard work, and craft took precedent.  CAC is an architect-led, design/build studio.  Our projects range in scale, from commercial space to custom homes, from small additions to custom built-ins.  All projects are designed and built by collaborating and leading an interdisciplinary team of architects & designers, builders, the professional trades, and vendors all with the seamless, integrated aim of designing and building for you.

As both registered architects and licensed builders we are rooted in the idea that architecture is connected to the act of construction.

Caveney StJean

We are architects who build



John Caveney

John Caveney, AIA, NCARB   

President & Founder


Affiliations: AIA, BSA, NCARB, Lowell Chamber of Commerce

Education: Clemson University | M.Arch BSc.Arch

John Caveney is the founder of Caveney Architecture & Construction. He is a registered architect & licensed builder. John guides a collaborative process on every project that reinforces our commitment to meeting our clients’ needs through innovative and thoughtful design solutions. He is a Clemson graduate and has over a decade of experience in the design-build delivery method.  

John is a registered architect holding licenses in MA, NH, SC, GA, TX and FL, and is NCARB certified. John also is a Massachusetts home improvement contractor (#185131) and a certified construction supervisor (#CS-110042).

Email him at jcaveney@caveneyarch.com

Nathaniel St Jean

Nathaniel St Jean, AIA, NCARB

Registered Architect


Affiliations: AIA, NCARB, AIANH

Education: Wentworth Institute of Technology | M.Arch BSc.Arch

Nathaniel brings a wealth of knowledge & experience in architectural design, construction, and management from initial design concepts thru project completion. He is responsible for overseeing a number of tasks throughout the design and construction process.

Nathaniel was a Helene Morgan-Babcock Scholar, a Society of American Military Engineers Scholar, and was presented the Emerging Young Leaders Award from his Alma Mater. He is a registered architect and is NCARB certified.

He is a member of the Massachusetts Historical Society, a curator for SectionCut, a board member on his local Board of Appeals, and a Helene Morgan-Babcock Scholarship Trustee. Nathaniel is an assistant professor at Southern New Hampshire University and is a frequent guest critic in the architecture department at Wentworth Institute of Technology and Northeastern University.

Email him at nstjean@caveneyarch.com