• 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
  • Volunteer for the Programs Committee!

    Help guide our education programming by joining the 2025-26 Programs Committee! Applications are open through October 21st 2025. 

    Learn more and apply
  • Illinois Green Schools Project

    Sign-Up Deadline Extended! 


    Schools can sign-up for the program now until October 17th! 


    Learn more about IGSP
  • 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


OCT
15

Illinois Green Alliance
Auxiliary Board Open Meeting

View Event

OCT
16

Retrofit & Revitalize Chicago:
A Lawndale 2-Flat Case Study

View Event

News & Updates


By Ryan Wilmington October 8, 2025
Welcome to the October edition of the Illinois Green Policy Update. We're excited to share several updates about how Illinois Green and our membership can empower resilient communities, support strong energy policy, and advance green building policies across the state.
September 24, 2025
Grace Yao recently wrapped up her summer as our Data Analyst Intern at Illinois Green Alliance, where she supported an audience analysis for the Building Energy Hub, conducted vendor and market analyses, and contributed to developing actionable insights for energy transition initiatives. She collaborated with the team on data-driven projects and assists in synthesized complex information into clear recommendations. Grace is currently pursuing a Master of Public Policy at University of Chicago Harris School, specializing in data analytics and strategic decision-making. Previously, she completed her undergraduate studies in Finance and Branding, where she focused on the intersection of ESG principles and brand value in the electric vehicle sector. She also gained experience in media and tech companies, where she applied data analysis to optimize program content for audience engagement.
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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

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Thank you to our Sustaining Sponsors!

USGBC
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USGBC

Sloan
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Sloan

ComEd
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ComEd

Baumann
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Baumann

Powering Chicago
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Powering Chicago

Richard Purpose Builders
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Richard Purpose Builders

Windfree Solar
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Windfree Solar

USG
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USG

Cylone
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Cyclone

Ozinga
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Ozinga

Tishman Speyer
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Tishman Speyer

Wight & Co
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White & Co

Clayco
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Clayco

dbHMS
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dbHMS

Pepper Construction
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Pepper Construction

Rockwool
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Rockwool

Village of Oak Park
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Village of Oak Park

Slipstream
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Slipstream

Arup
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Arup

Leopardo
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Leopardo

Elevate
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Elevate

Electrical Contractors' Union
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Electrical Contractors' Union

AT Mechanical
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AT Mechanical

Woman Image
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Collective Compost Resource Cooperative

Whole Cubes
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Whole Cubes

Windy City Reps
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Windy City Reps

Chiefable
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Chiefable

wurkwel
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