• 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
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    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

MAY
8

Code Campaigns: Creating a Health, Resilience, and Efficiency Baseline for Illinois

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MAY

14

From Mobilize to Manage:

Decarb Strategies for Existing Buildings

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MAY
20

Your Voice Matters: Green Building Policy 101

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JUNE
4

Green Minds Think Alike: Trivia Night Fundraiser

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News & Updates

Illinois Green Policy Update: April 2025

By Ryan Wilmington • April 30, 2025
Is there a more fitting time to think about green building policy than Earth Month? In April's Policy Update, we take a look at the progress made towards advancing energy efficiency legislation in Springfield , get you caught up on some sustainability policy developments in Chicago , share some events where you can learn how to use your voice, and more !

Net Zero Case Study: Heartland Community College Agriculture Complex

By Matt Watson • April 29, 2025
Project Overview Location: Normal, Ill. Owner: Heartland Community College Completion Date: 2024 Construction Type: New Construction Building Type: Higher Education Certification (being pursued): ILFI Zero Energy Project Cost: $22 million
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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!

Wight & Co

White & Co

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USG

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Agati

Baumann

Baumann

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Arup

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Sloan

Slipstream

Slipstream

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Rockwool

Powering Chicago

Powering Chicago

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Ozinga

Village of Oak Park

Village of Oak Park

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Leopardo

Lendlease

Lendlease

Elevate

Elevate

Elara Engineering

Elara Engineering

Electrical Contractors' Union

Electrical Contractors' Union

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dbHMS

Conservice

Conservice

ComEd

ComEd

Clayco

Clayco

AT Mechanical

AT Mechanical

Cylone

Cyclone

Tishman Speyer

Tishman Speyer

Pepper Construction

Pepper Construction

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Collective Compost Resource Cooperative

Whole Cubes

Whole Cubes

Windy City Reps