We want to help our clients build a healthy, beautiful, low-carbon world. As an Architecture 2030 Signatory Firm, we have committed to deep energy reductions in all our buildings as a key element of positive cultural impact.


Tom Bassett-Dilley founded TBDA in 2006 to pursue sustainability as contemporary design based on region, climate, and context. Over our nearly 200 projects since then, we have completed new buildings and renovations in frame, masonry, insulated concrete form, structural insulated panel, and modular prefab systems. We are proud to have designed the first certified Passive House projects in the Chicago region, as well as LEED, Green Star, and DOE (Energy Star and Zero Energy Ready) certified projects.


We design for end users seeking quality. Our projects include single- and multi-family residences (new and remodel), institutional buildings (park buildings, schools), and commercial buildings primarily in the Midwest (Illinois, Wisconsin, Indiana, Michigan). We provide complete services including interior design and in-house Passive House Consulting and energy modeling (using WUFI-Passive). We work with trusted consultants for landscape architecture, lighting and other specialty design, and structural, mechanical-electrical-plumbing, and civil engineering. In keeping with our mission, a project is a fit only if requires our comprehensive design and energy planning expertise.



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