CASBA California Straw Building Association
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We are a project of The Tides Center, a 501(c)3 nonprofit. Please see our history, code update, and testing (coming soon!) pages for more information.
We are an all volunteer non-profit organization committed to straw bale building in California; providing information, education and a network of resources since 1996. Since 1996, our members have worked to develop testing and to improve techniques and standards for building with straw, in order to gain its acceptance by municipalities, officials, lenders, and insurance companies throughout California. There are now many fine examples of permitted straw bale homes throughout the state, as well as a number of commercial buildings, that stand as a testament to this pioneering work. CASBA members have not only broken new ground at home. Individually, through affiliations, some have been instrumental in bringing straw bale building to far-flung places around the globe: consulting, teaching, building, and collaborating – on projects to combat pollution, conserve resources, rebuild after natural disasters, and improve community services and housing in impoverished areas. Although we are a very diverse group, we share similar hopes, dreams, and beliefs for building a better world through the wise use of natural materials, intelligent design, and stewardship of our resources. This is what binds us together and gives us a common language and spirit. At our annual Spring Conference, we learn from speakers and forums, and also from each other…sharing our experiences and the lessons learned. Members flock to this event from up & down California, as well as visitors from other states and countries. Plenty of time for socializing lends a festive air of “family reunion” to the event. We welcome anyone who shares our passion.
10/01/2026
SoCal community! Help support the growth of biobased building. Our CASBA members, friends, and colleagues at Earth Light Build need a fabrication space for their panelized straw wall system. See below for more info:
08/06/2026
CASBA Pro Course! Two weeks left to register. Spaces are limited.
07/15/2026
Pro Course Early Bird Pricing Ends Thursday, July 16!
07/02/2026
The Pro Course early bird deadline extended to July 16!
06/16/2026
CASBA invites you to Ray And Roman's Clay Plaster Finish Coat Workparty! North Fork, CA, June 27-28, 2026, Free!
06/16/2026
CASBA Invites you to a Professional Course in Straw Bale Construction, August 21-23, 2026 in Cottage Grove, Oregon!
05/29/2026
CASBA is pleased to have contributed to the Bio-Based Materials Collective's Materials Primer ... check it out (and download) a free copy at this link:
Resources Documents Bio- & Mineral-Based Materials Primer Download The Bio- & Mineral-Based Materials Primer is a guide for architects and designers working on larger buildings across North America. …
05/19/2026
Please join Friends of CASBA for a
Cob Garden Wall Finish Plaster Workshop
May 23, 2026
9am-5pm
Sunset District, San Francisco
Free!
05/16/2026
Please click below to donate to Leslie Jackson's Climate Ride Green Fondo effort. 100% of funds donated will to towards CASBA's ongoing Building Code and Environmental Product Declaration (EPD) work on behalf of straw building.
Green Fondo Northern California 2026 Green Fondo Northern California 2026, a new Climate Ride cycling adventure, empowers you to actively engage in the fight against climate change. By joining in our bike rides you can join a community of awesome people while supporting nonprofits working on conservation, climate, clean energy, and act...
05/14/2026
Verdant Panel invites you to the factory opening for their straw based wall panel.
Saturday, May 16, 2:00 PM - 5:00 pm
Oakland, California
Click here to claim your Sponsored Listing.
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Berkeley, CA
94710
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