Architects DCA

Architects DCA DCA is an Ottawa-based practice with more than 25 years of experience in infill development

We joined over 120 leaders for the launch of CAPITAL Magazine, celebrating 200 years of stories, people, and ideas that ...
06/18/2026

We joined over 120 leaders for the launch of CAPITAL Magazine, celebrating 200 years of stories, people, and ideas that shaped this city, and the ones still to come.

Thank you to the Ottawa Board of Trade for bringing everyone together, and to all the partners working behind the scenes to make evenings like this happen.

Honoured to be featured alongside so many organizations contributing to Ottawa‘s future . 

Always great to see a project reach the finish line.Thanks to the Town of Hawkesbury, Beaudoin Construction, and EXP for...
06/13/2026

Always great to see a project reach the finish line.

Thanks to the Town of Hawkesbury, Beaudoin Construction, and EXP for a great collaboration on this new municipal garage. We’re proud to have been part of a project that will support the community’s public works operations for years to come.

06/10/2026

We tried our best. ♥️

Architects DCA has been in Ward 15 since the firm started. We’ve developed a legacy of work in the National Capital Regi...
06/03/2026

Architects DCA has been in Ward 15 since the firm started.

We’ve developed a legacy of work in the National Capital Region, with hundreds of projects under firm founder Marcus Berns (1976-1986), followed by James Farrow (Berns Farrow, 1989-1999), Farrow Architects (1999-2012), and Dreessen Architect (2005-2012).

Transitioning to Farrow Dreessen from 2012-2015, we became Architects DCA in 2016 and continued to grow, expanding our reach to bring climate-responsive, resilient from Comox, BC, to Gander, NL.

Our work today includes projects in Toronto, Montreal, Chicoutimi, Quebec City, Kingston, and Petawawa. But Ottawa will always be our home.

We can’t wait to see what the next 50 years will bring. Let’s build something together.

05/26/2026

“Better than nothing is a pretty low bar.”

Toon Dreessen spoke about civic ambition, public architecture, and why Ottawa needs to stop accepting “good enough” city-building.

What we build today becomes tomorrow’s heritage.

Watch here! 👇

https://www.youtube.com/watch?v=hp85uCzn2EQ

05/22/2026

POV: you pull your boss over for a “big surprise” and it’s just CAD work again.

Not all surprises are good surprises 😉

It has been a long time coming. Years of planning and design, years of construction, and now, floor by floor, it’s final...
05/15/2026

It has been a long time coming. Years of planning and design, years of construction, and now, floor by floor, it’s finally open. We couldn’t be more proud of the team it took to make this happen.

05/06/2026

Dear diary: today the engineer said ‘no’. Rude.
- Just testing the limits. 😉

Address

1339 WELLINGTON Street W #201
Ottawa, ON
K1Y3B8

Opening Hours

Monday 9am - 5pm
Tuesday 9am - 5pm
Wednesday 9am - 5pm
Thursday 9am - 5pm
Friday 9am - 5pm

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