We are accepting applications for the STEAM Student Showcase! Click here to learn more.

Lead the World,
Starting with
California

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

Enhance your
Experience

Register for FREE to unlock the full OCSD experience. Our OCSD app features priority access to model homes, real-time updates, exclusive networking access, and more!

Join us for
Education Day
October 6, 2023

Education Day is an exclusive field-trip day for K-12 students in surrounding districts to tour the OCSD and participate in STEAM-related activities.

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Orange County Sustainability Decathlon

October 5-8 & 12-15, 2023

Costa Mesa, CA

OCSD General Information

Watercolor rendering of OCSD event site

October 5-8 & 12-15, 2023

Thursday & Friday: 3:00 p.m. – 9:00 p.m.
Saturday & Sunday: 10:00 a.m. – 4:00 p.m.*

Register here.

*Note: The village will remain open to enjoy until 9:00 p.m. Home tours conclude at 4:00 p.m. on weekends.

Volunteer

Close up of a volunteer badge

Volunteer with Us!

Volunteering allows you to work alongside like-minded people, network with the community, and gain experience in a field of interest.

Education Day

A child and his teacher learning about sustainable wind energy with a classroom model of a wind turbine

Education Day is Friday, October 6

Education Day is an exclusive field-trip day for K-12 students in surrounding districts to tour the OCSD and participate in STEAM-related activities.

Attend the 2023 Orange County Sustainability Decathlon

The fairgrounds parking fee is $12 per car. Save and go green by OC Bus, powered by renewable energy and part of OCTA’S commitment to a balanced, equitable, and sustainable transportation network. 

Food and beverages are available for purchase in the village and beer gardens.

Location

OC Fair & Event Center
88 Fair Drive, Costa Mesa, CA 92626
Entrance: The Main Mall
Building: OC Promenade & Lot I

OC Bus routes to OC fairgrounds: Routes 47, 55, 71, and 178.

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. OCSD 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 OCSD 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, 14 teams were selected to participate in this new competition. Each received seed money for their project.

Our Sponsors

City of Buena Park
City of Anaheim
OC Department of Education
Sustain Southern California
Moulton Niguel Water District
OC Business Council
Child Creativity Lab
Adam's Falconry Service
Scudder Roofing
Scudder Solar

News

Discover the latest OCSD news.

The Orange County Sustainability Decathlon Announces Job and School Fair

August 17, 2023
Job seekers and prospective students are invited to the Orange County Sustainability Decathlon (OCSD) on October 13, 2023 (3:00 p.m. to 6:00 p.m.), for a Job and School Fair. This event will take place at the OC Fair &…

OCSD Welcomes Sustainability Speakers to the Stage

August 15, 2023
The Orange County Sustainability Decathlon (OCSD) is excited to welcome individuals, companies, community groups, OCSD Decathletes, and other organizations to share their voices and…

OCSD Cofounder Dr. Mike Moodian and OC World Receive Telly, OC Press Club Awards

August 10, 2023
Crystal Cove State Park, Laguna Beach, Calif. The Orange County Sustainability Decathlon (OCSD) is thrilled to congratulate OCSD cofounder Dr. Mike Moodian and the…

Orange County Sustainability Decathlon Invites Volunteers to October 2023 Event

August 8, 2023
To promote awareness and education of the impact of sustainable living, The Orange County Sustainability Decathlon (OCSD) is proud to offer several opportunities for…