We are a team of architects that offer personalized professional services.

A better-built environment starts with the curiosity to build. 

As a specialized Ottawa architecture firm, we know that a better-built environment relies on innovative design that puts people first. We achieve design excellence by balancing creative architectural solutions with the practical aspects of creating functional, durable, beautiful buildings.

At Architects DCA, we are local architects with a big vision for the National Capital region, the Ottawa Valley, and Ontario as a whole. We are working toward building a more livable, sustainable city through the design of residential and commercial architecture.

Front entrance view of the DCA designed Canadian Forces Base in Petawawa, built to provide a storage and maintenance facility for secure military vehicles.
View of the Delta Hotels Ottawa City Centre Pool, made with rich blue specialty Italian tile, specifically designed for swimming pools.
Outside view of Z6 Urban Lofts located on Booth Street in Ottawa, containing 26 residential condominium apartments in various sizes to provide a range of occupancy and income types.
Front view of the MINI Ottawa dealership, a project that sought to redevelop portions of an existing building dating from the 1960’s, creating a harmonic integration of new and existing results.

Advocating for architects

Toon Dreessen, president of Architects DCA.

Advocating for a better-built environment is important to Architects DCA. Toon Dreessen, president of Architects DCA, is a strong voice for a range of issues including supporting local firms, the value of association memberships, the importance of political engagement, and advocating for a good design that benefits the public interest.


We’re proud to have received the following recognition for our work and achievements in architectural services.