• Center On Sustainable Communities

    Iowa’s Trusted Educational Resource for Green Building and Healthy Living

    Learn More


We empower individuals and communities to make everyday decisions that result in a better quality of life for all Iowans. Learn more about COSC’s history and meet our staff, board and instructors.


Access our Affordable Green Building video series, Homeowner Handbook, weatherization tips and what green building really means.

Home Matters

COSC’s new online resource offering trusted home improvement advice on topics that really matter. Save energy, conserve resources and be happy with your home.


We’ve launched a new blog! Read up on sustainability innovations, community resources, Green Iowa AmeriCorps activities, COSC in the news, and our “Good Question” feature.


Connect with our upcoming events, current grant programs and community initiatives such as Energy Efficient Neighborhoods, Earth Day in the Junction and our Iowa Deconstruction & Reuse Initiative.

Sign Up for Our Newsletter!

The best way to keep up to date with everything sustainable in Central Iowa.