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CASBA

Upcoming events are listed below.

Upcoming events

  • West Coast Natural Building Conference 2026

    • 10 Apr 2026
    • 12 Apr 2026

    AND


    Present

    West Coast Natural Building Conference 2026 & Celebration of CASBA's 30th anniversary!       

    What: Three days of presentations, discussions, hands-on instruction, community, and celebration; all focused on practicing and scaling natural and bio-based building methods. 

    Topics include code, technical research, practical tips & tricks, bio-regional resilience, and more.

    When: April 10 - 12, 2026 

     

    Where: San Luis Obispo, CA


    Keynote: Summer Islam, Material Cultures

    https://materialcultures.org/about/

    Registration will open in the new year. In the meantime, keep an eye on this page for more information as it develops! 



    Show details

Past events

22 Nov 2025 Clay Plaster Finish Coat Workshop November 22-23, 2025 in North Fork, CA
01 Nov 2025 Cob Garden Wall Plaster Workshop
03 Oct 2025 Clay Plaster Brown Coat Workshop October 3-5, 2025 in North Fork, CA
25 Sep 2025 Workshop with Athena Steen and Michael Smith in Middletown, CA, September 25-29
13 Sep 2025 Cob Garden Wall Workshop
08 Aug 2025 Clay Plaster Work Party August 8-10, 2025 in North Fork, CA
12 Jul 2025 Join Us! Clay Plaster Scratch and Brown Coat Work Party, Kelseyville, CA - July 12-13
14 Jun 2025 Clay Plaster Workparty: June 14-15
14 Jun 2025 Straw Bale Work Party June 14-15, 2025 in North Fork, Ca
04 Apr 2025 West Coast Natural Building Conference
06 Jul 2024 Clay Plaster Interior Finish Coat Work Party July 6-7, 2024 San Rafael, CA
22 Jun 2024 Lime Plaster Exterior Brown Coat Work Party June 22-23, 2024 San Rafael, CA
07 Jun 2024 Lime Plaster Brown Coat Work Party!, June 7-9, La Pine, Oregon
26 Apr 2024 West Coast Natural Building Conference 2024
19 Apr 2024 Clay Plaster Scratch Coat Work Party, April 19-20, 2024 in Ashland, Oregon
13 Apr 2024 Postponed! Clay Plaster Finish Coat Work Party April 13-14, 2024 San Rafael, CA
12 Apr 2024 Straw Bale Work Party April 12-13, 2024 in Ashland, Oregon
23 Mar 2024 Clay Plaster Brown Coat and Hempcrete Work Party, March 23-24, 2024 San Rafael, CA
09 Mar 2024 Hempcrete Work Party March 9-10, 2024 San Rafael, CA
24 Feb 2024 Clay Plaster Scratch Coat Work Party February 24-25, 2024 San Rafael, CA
18 Feb 2024 Plaster Preparation Work Party February 18, 2024 San Rafael, CA
18 Nov 2023 Lime Plaster Brown Coat Work Party Nov 18-19 in Beckwourth, CA
11 Nov 2023 Clay Plaster and Plaster Preparation Workshop Nov 11-12 in Ione, CA
04 Nov 2023 Straw Bale Workshop Nov 4-5 in Santa Rosa, CA
21 Oct 2023 Lime Plaster Scratch Coat Work Party Oct 21-22 in Beckwourth, CA
07 Oct 2023 Straw Bale Workshop
15 Jul 2023 Postponed! Clay Plaster Scratch Coat Workshop Santa Rosa
20 May 2023 Straw Bale Workshop with Crafted Earth In Santa Rosa
15 Apr 2023 Clay Plaster Scratch Coat Workshop - April 15-16
31 Mar 2023 West Coast Natural Building Conference
05 Nov 2022 Clay Plaster Brown Coat Workshop - November 5-6
29 Oct 2022 Clay Plaster Base Coat Workshop - October 29-30
15 Jul 2022 Workparty: Intro to Light Straw Clay
21 May 2022 Workshop: Making Biochar and Milling Dimensional Lumber
22 Apr 2022 West Coast Natural Building Conference 2022
26 Mar 2022 Clay Plaster Finish Coat Workshop - March 26-27, 2022
12 Mar 2022 Clay Plaster Brown Coat Workshop - March 12-13, 2022
26 Feb 2022 Clay Plaster Base Coat Workshop - February 26-27, 2022
18 Dec 2021 Finish Plaster Work Party
17 Apr 2020 West Coast Natural Building Conference
14 Dec 2019 Finish Plaster Workshop - December 14-15
23 Nov 2019 Plastering Straw Bales with Lime Cement - A 2 Day Workshop
05 Oct 2019 Building with Straw Bales Workshop
28 Sep 2019 Workshop: Clay Plaster Workshop - September 2019
05 Apr 2019 West Coast Natural Building Conference
14 Sep 2018 Workshop: Clay Plaster Workshop - September 2018
07 Sep 2018 Green Building and Straw Bale Basics
05 May 2018 Straw Bale Home Tour: Grass Valley, Nevada City & Penryn
13 Apr 2018 CASBA's Spring Conference - April 2018
21 Oct 2017 Workshop: Clay Plaster on Hybrid Wall System - October 2017
03 Jun 2017 Workshop: Remodeling a Home with Straw Bales - June 2017
05 May 2017 Spring Conference - 2017
22 Apr 2017 CASBA at Grass Valley Home & Garden Show, April 22-23
04 Nov 2016 2016 Straw Bale Building Basics Workshop
23 Sep 2016 2016 Plastering a Strawbale House Workshop
08 Jul 2016 2016 Straw Bale Building Basics Workshop
21 Apr 2016 20th Anniversary Conference - 2016
16 Oct 2015 San Diego Sustainable Design Symposium
04 Oct 2015 2015 Green Home Tour: Visit four straw bale buildings at Deer Park Buddhist Monastery
22 Sep 2015 Building Zen - A Presentation by two CASBA members at the San Diego Green Building Conference
20 Sep 2015 Strawbale Home Tour of Nye-Schaffroth Residence
31 May 2015 Tour de Bale: straw bale home tour in San Diego County
10 Apr 2015 Spring Conference 2015
09 Nov 2014 Straw Bale Home on the San Diego USGBC Green Home Tour
07 Nov 2014 Natural Plaster on Straw Bale Basics
17 Oct 2014 Fall 2014 Member Retreat
19 Sep 2014 Straw Bale Building Basics
18 May 2014 Straw Bale Open House San Diego

CASBA is fiscally sponsored by the Tides Center, a 501(c) (3) non-profit organization.

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