Who we are

Studio St.Germain is the region’s only architectural firm to offer award-winning, national expertise in ultra-low energy building science together with personal, one-on-one collaboration with principal architects from project start to finish. As a boutique firm, clients collaborate directly with lead architects who are personally available for wraparound execution services on every project.

Studio St.Germain believes in the transformative power of design.

We believe that design has the power to transform a user’s experience. Design encompasses not only the building structure and appearance but also intangible human comfort factors. Studies have shown that well-designed buildings result in improved organizational efficiency and better quality of life for individuals.

We take all design and style factors into consideration to create beauty and functionality, providing a multifaceted return on investment to clients, whether designing new construction or breathing new life into old spaces.

Studio St.Germain is passionate about ultra-low energy, high performance building.

We leverage our expertise in low energy technology and building science to offer clients the best options and combination of design, budget and performance. Studio St.Germain aims to share this expertise as a frequent author of web content and quoted media source on ultra-low energy and high performance building science. 

Studio St.Germain are experts in Passivhaus, the strictest international energy standard in the world. Principal Nathan St.Germain is a pioneer of the Passive House (Passivhaus) movement in Pittsburgh and was one of the first Certified Passive House Consultants in the Pittsburgh region. 

Studio St.Germain is committed to community.

The principals of Studio St.Germain support the community through volunteer service for a number of committees and organizations. Nathan serves as a Board member of Passive House Western Pennsylvania and is the Chairman of the Sewickley Borough Planning Commission. He has also been an invited contributor to both the City of Pittsburgh Climate Action Plan and Rockefeller 100 Resilient Cities Program.