Our mission is to affect positive change through our architecture, and that means creating beautiful, ultra-efficient, and healthy environments that matter—to our clients, to the environment, to the future. We strive for the highest in design, which to us means integration of performance and esthetics–such as is found in Nature.  We are leaders in the field of Passive House design and building science, and bring our expertise to bear on a wide range of project types. Our design vocabulary spans from classic to modern; instead of a “signature style,” our dogma is authenticity and quality.

Tom Bassett-DilleyTom Bassett-Dilley, CPHC, AIA

Tom founded TBDA in 2006 to pursue sustainability and a contemporary design language for the Midwest. He has established a leadership role in the world of healthy, low-energy buildings, and continues to learn about and present on biophilic design, Passive design and construction, green preservation, and the human-nature connection. Tom is a founding member and current President of the Passive House Alliance, Chicago Chapter, and is a member of the International Living Future Institute, the American Institute of Architects, and several conservation organizations. When not at work he is usually gardening, playing guitar, or cooking up something tasty in the kitchen with his family.

Timothy Eberline

Timothy Eberline

Since joining TBDA within weeks of its inception, Timothy has become lead project manager, central to the work and vision of the office. Through his studies at UIC and the Ecole d’architecture de Versailles as well as extensive carpentry and construction management experience, he understands architecture as concept and craft. His high design standards coupled with construction knowledge and great communication skills allow him to create continuity from client conversation through jobsite execution.


Wednesday Journal, December 12, 2017,
“Totally modular: A fresh take on new construction”

Crain’s Chicago, November 28, 2017,
“Watch this modular Oak Park house come together”

AIA Illinois, Frank Lloyd Wright Award for New Design,
Austin Gardens Environmental Education Center, Oak Park, IL. 2017

U.S. Green Building Council (USGBC) LEED Homes Awards,
Outstanding Single-Family Project, Right Sized Passive Home, 2017

Illinois Parks and Recreation Magazine, March/April 2017,
“Austin Gardens Environmental Education Center: Green in Every Way”

Mainstream Green Winner, Green Home of the Year Awards.
2016 Green Home of the Year Award Winner: Simply the Right Size, 2016

Cavalcade of Pride Awards, Oak Park Community Design Commission,
Austin Gardens Environmental Education Center, Oak Park, IL. 2016

BUILDER magazine, November 2016,
“The Next Big Thing: Healthy Homes”

Professional Builder, November 2016,
“High Performance, High Design”

Wednesday Journal, November 8, 2016,
“An educated environmental center”

Green Building and Design Magazine, Nov 2016,
“2nd Annual Passive Projects Design Awards Winners”

Chicago Tribune, June 28, 2016,
“What to know before you renovate: Stories, tips from those who lived through it”

Chicago Tribune, June 6, 2016,
“Austin Gardens education center to open Saturday”

LEED-H Platinum certification,
Right-Sized Passive Home, Oak Park, IL. March 2016

Historic Preservation Award,
Renovation in Frank Lloyd Wright Historic District, Oak Park, IL. 2015

Crain’s Chicago, July 31, 2015,
“The secret to an energy-efficient home? No, it’s not solar”

Curbed, July 29, 2015
“This Stylish Passive House Doesn’t Need to Show Off”

TreeHugger.com, July 24, 2015,
“A Chicago house that is “healthy, efficient, and right-sized for comfortable living”

Chicago Tribune, July 16, 2015,
“2015 GreenBuilt Home Tour to showcase eco-friendly building practices”

West Suburban Living, May 2015,
“Eco-Friendly Living: Live healthier and save money with a green-built home”

Chicago Tribune, April 6, 2015,
“Environmentally friendly house being built on Clinton Avenue”

Wednesday Journal, January 13, 2015,
“Passive houses, A new generation of homes in Oak Park”

Chicago Architect, September/October 2014,
“The Passive-ist Front”

Emerald Award, USGBC-IL,
First certified Passive House in the Chicago region, 2013

Historic Preservation Award, Geneva,
405 S. 1st Street, 2012

Historic Preservation Award, Oak Park,
313 Forest, 2011

Green Award, Oak Park Energy and Environment Advisory Commission, for
Green Garage, 2010

Preservation and Design Award, City of Evanston, for
Walter Burley Griffin Carter’s House Renovation, 2010


aia pha cphc a2030 usgbc