• A city skyline is reflected in a lake in a park.

    All Communities Deserve Green Buildings


    For 20 years we've been the green building community of Illinois. We educate, advocate, and reduce barriers to high performance buildings across the state.

    Connect with Us
  • A large group of people are gathered in a large room.

    Join The Green Building Movement


    Being a member demonstrates your passion and commitment to advancing green buildings in Illinois. Get connected to like-minded sustainability professionals and support green and equitable communities.

    Become a Member

Featured Events


JULY

23

Beyond Zero: Evanston's First Passive House Project

View Event

JULY

30

Resilience Hubs: A Blueprint for Climate Adaptation

View Event

News & Updates


By Twyla Neely-Streit May 30, 2025
As we wrap up another successful year, the Illinois Green Schools Project recognizes 8 schools for completing a project to reduce their school's sustainability impacts!
By Ryan Wilmington May 30, 2025
Hundreds of building professionals and environmental advocates took action to support green buildings and the energy transition last month and we're excited to share these efforts with you!
Show More

Our Initiatives


Green Building Education

The professionals that design, build, and operate buildings are important advocates for net zero, and need a reliable source for the latest trends and technologies. We deliver effective educational programs, convening diverse professional stakeholders.

Existing Buildings Programs

We believe that all communities deserve healthy, high performing buildings. Through our Building Energy Resource Hub and Illinois Green Schools Project initiatives, we provide the support to show all building types can be on the path to net zero.

Green Building Policy

We must remove barriers by providing information about the technical and policy roadblocks to net zero adoption. We amplify green building professional voices that impact green building policy and support the passage of major climate laws.

MEASURING OUR IMPACT

To combat climate change in Illinois, it's time we made net zero buildings feasible, affordable, and so commonplace that every building in Illinois by 2050 is net zero. Mainstreaming the technology and building methods, whether new or existing, will not be easy but no one is better positioned to make it happen than green building professionals.

58

Programs, trainings, and events last year

2,000+

Volunteer Hours last year

4,150

Program Attendees last year


Our Community


"I chose to be a member and a volunteer for Illinois Green Alliance to grow my network of connections, and by joining I gained more than I could ever imagine. Over the past six years my colleagues have grown to be my friends, and I learn something new about sustainability, life, and myself through everyone and every event I attend."


Taylor Callahan

Illinois Green member since 2016

Join our community

Thank you to our Sustaining Sponsors!

USGBC
Read More

USGBC

Sloan
Read More

Sloan

ComEd
Read More

ComEd

Baumann
Read More

Baumann

Powering Chicago
Read More

Powering Chicago

USG
Read More

USG

Cylone
Read More

Cyclone

Ozinga
Read More

Ozinga

Tishman Speyer
Read More

Tishman Speyer

Wight & Co
Read More

White & Co

Clayco
Read More

Clayco

dbHMS
Read More

dbHMS

Pepper Construction
Read More

Pepper Construction

Rockwool
Read More

Rockwool

Village of Oak Park
Read More

Village of Oak Park

Slipstream
Read More

Slipstream

Arup
Read More

Arup

Leopardo
Read More

Leopardo

Elevate
Read More

Elevate

Electrical Contractors' Union
Read More

Electrical Contractors' Union

AT Mechanical
Read More

AT Mechanical

Woman Image
Read More

Collective Compost Resource Cooperative

Whole Cubes
Read More

Whole Cubes

Windy City Reps
Read More

Windy City Reps

Chiefable
Read More

Chiefable

wurkwel
Read More

wurkwel