CASBA sponsors an annual Spring conference, as well as workshops focusing on bale raising, window and door details, and natural earth plasters. Members receive discounts to the conference, and also have the opportunity to gain knowledge and support fellow-members through straw bale work parties.

To add a new event to the calendar, please contact the webmaster.

Upcoming events

    • 22 Apr 2017
    • 23 Apr 2017
    • Grass Valley, CA
    If you are in Nevada County, please come see us at the Union’s Home and Garden Show in Grass Valley!

    Event info:

    • 05 May 2017
    • 4:00 PM
    • 07 May 2017
    • 12:00 PM
    • Walker Creek Ranch, Marin County, CA

    Registration has Commenced!

    May 5-7

    Walker Creek Ranch

    1700 Marshall - Petaluma Road, Petaluma, CA 94952

    Our volunteer conference committee is hard at work polishing the final conference details to ensure a stellar event with loads of information, many opportunities to get your questions answered, and of course, time to socialize with like-minded folks. The schedule will be posted as soon as we've finished tweaking it! We've included an overview for your perusal after  the registration and lodging information.

    Registration Fee

     Early Bird - $175 (March 20 - April 20)
     Regular Price - $200 (April 21 - May 3)
     Saturday Only (March 20 - May 3)

    Students receive a 25% discount on Early Bird & Regular pricing.

    Base fee includes meals. Lodging prices are detailed below.

    You must be a member to register for the conference. (students excepted). If you are not currently a member you can sign up here.


    Fees are per head and include Friday and Saturday nights. All beds are singles.

    • Camping - $0
      Included in registration fee   
    • Economy / Dorm - $50 each
      Bring your own bedding
    • Semi-private room in lodge - $100 each
      Rooms for 2-4 people with shared kitchen, lounge and bathrooms. Limited number of rooms for 2 -- couples, book early if you'd like one!                                  
    • Private room / 1 person - $200
      Very limited; we will confirm availability post-registration.


    Keynote Speaker: Craig White
    British Architect Craig White is the founder of ModCell, a panelized strawbale wall system.  He is a consultant with the Carbon Trust and has worked on the UK’s Low Carbon Buildings Programme.  Craig was a keynote speaker at the 2016 International Straw Building Conference in New Zealand.

    Presentation & event teasers:

    • Santa Clara University bale testing update
    • Strawbale, Straw Clay & Tiny House IRC Appendices
    • Sustainable Rebuilding in Nepal
    • Low Carbon Building
    • Straw Bale 101 for newcomers ( as always! )
    • Silent Auction
    • Social Time
    • and much more, TBD soon!


    5x5's and 20x20s

    If you'd like to present your project, idea or product in a ‘Pop-Up Presentation’, choose 5 slides you can tell us about in 5 minutes, and send a 50 word synopsis of your presentation to:

    We always enjoy fast-paced ‘20x20’ presentations too - 20 slides at 20 seconds each, for a total of 6 minutes 40 seconds. If this is more your style, give us a "heads-up" at the email above, bring your slides in a single PDF, PPT or JPGs, and we’ll make it happen.

    NOTE: CASBA endeavors to make our conferences accessible to all. If you have financial restrictions please contact David Arkin.

    • 03 Jun 2017
    • 9:00 AM
    • 04 Jun 2017
    • 5:00 PM
    • Palo Alto, CA

    2 day workshop June 3-4 in Palo Alto, California

    Come learn about remodeling a house using straw bales and lime plaster. This is a two day workshop which will focus on how to wrap an existing house exterior in straw bales to increase the insulation value and beauty of the home. We will install straw bales against a wood framed, single story house. Participants will participate in bale stacking, notching, window detailing, papering, lathing, and base-coat plastering. A mix of instruction time, hands-on experience along with a hand-out will provide you with the basic knowledge of straw bale building to go build your own project. Evenings will allow for additional question/answer time and photo presentations.

    This remodel was designed by Arkin Tilt Architects in Berkeley. The instructors are long time CASBA members, contractor Rebecca Tasker from Simple Construct and CASBA director, David Arkin. Instruction during the workshop will cover the basics of building with straw bales; foundations details, windows and doors, electrical installation, plumbing, roofs, carbon sequestering building materials, environmentally conscious building, and more. We will cover some basic information on plasters and have a chance to apply the first layer of plaster. To learn more about the art and science of plasters join us for our upcoming Plaster Workshop in Vacaville this summer.

    The goal of the workshop is to accommodate every participant’s interest and skill level. Each participant can expect to participate in the various aspects of the straw bale construction to ensure the broadest possible hands-on experience.


    • $325
    • Register by May 20th for a 10% discount!
    • Students discount price $245 (~25%)
    • Attendees also receive a free CASBA membership for 1 year

    Price includes meals during workshop.


    No lodging on project site. We will have a washing area and toilet facility. If you are coming from a distance, there are hotels/motels minutes away.  Information to these will be provided when requested.  Site location, driving instruction and other information are provided with confirmation of registration.

    For additional workshop info contact Jenna Yu at or 510-541-7753.

    • 07 Oct 2017
    • Grass Valley / Nevada City area

    SAVE THE DATE! We'll post more information here soon.

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