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Orange County Sustainability Decathlon:
A collegiate design-and-build competition focused on sustainable housing.

Bold Ideas Build Brighter Futures

The Orange County Sustainability Decathlon challenges university teams to design and build model solar-powered homes that address climate change and California’s housing needs. OCSD23 teams will showcase innovative, market-ready model homes to display in a sustainable village which will be open to the public.

Attend the Event

The Orange County Sustainability Decathlon will take place October 5-15, 2023, at the OC Fair & Event Center in Costa Mesa, CA. The event will feature the OCSD23 competition, as well as a STEAM Student Showcase that is open to both high school and college teams.

Team Support From California

State Senator Dave Min championed a significant grant from the California Legislature to make the Orange County Sustainability Decathlon a reality. Thanks to this funding, 16 teams were selected to participate in this new competition. Each received seed money for their project.

Our Sponsors


Discover the latest OCSD23 news.

Orange County Sustainability Decathlon Announces STEAM Student Showcase

December 19, 2022
ORANGE COUNTY SUSTAINABILITY DECATHLON ANNOUNCES STEAM STUDENT SHOWCASE  Local High School and College Students Have the Opportunity to Exhibit Their Passion for Sustainability at a Major Public Event in Fall 2023  Organizers of the 2023 Orange County Sustainability Decathlon…

Here are the colleges that will compete to make OC ‘world’s sustainability capital’

May 23, 2022
Katie Schneider uses a trowel as she tapes drywall joints while helping to build a tiny house at Colorado School of Mines on Sept….

OCSD Announces 2023 Participants

May 23, 2022
ORANGE COUNTY SUSTAINABILITY DECATHLON ANNOUNCES 2023 PARTICIPANTS 18 Teams From Across the Globe Have 17 Months to Design and Build Innovative, Net-Zero Homes of the Future…
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Look No Further Than OC For a Coastal Crisis

February 18, 2022
The National Oceanic and Atmospheric Administration released a report this week that sounds the alarm for potentially dire circumstances in U.S. coastal communities. Some of the…