4-Day Core Curriculum Workshop

Early Bird Discount Available!

Beginner/Intermediate   |   8:30am - 6:00pm Thurs-Sunday   |   Hesperia, California

For those of you who prefer to take the entire course in one go, this program is a combination of the Weekend Series A+B offerings. The four day fundamentals course is offered three times year in February, June, and September--you may take this course independently of any other program, no prior experience is necessary to apply.


  • Principles of the Arch
  • Superadobe Basics
  • Compass Theory and Applications
  • Dome Geometry
  • Foundations
  • Fenestrations (Door and Window Openings)
  • Elements of Design
  • Soils Practicum and Discussion (Testing your own Soil for Building)
  • Rough and Finish Plaster
  • Options for Stabilization
  • Water Management
  • Installing Windows and Doors

Tuition: $1100/$900 early bird

Remaining 2019 DATES
June 20-23, 2019

2020 Dates
February 13-16
June 18-21
September 17-20

I can think of few experiences as rewarding as the 4-day workshop I’ve just completed at Cal-Earth. The inspiration of the buildings, the knowledge of the instructors and the like-minds of the students were all beyond my expectations.
— Workshop Participant

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**For group discount or member discount of 10% per person, please pay the deposit and indicate the discount in your application. We will invoice you for the adjusted balance.


  • Workshop check-in and orientation is at 8:30am, please arrive promptly.

  • Please plan to stay through Sunday evening at about 8pm. We recommend making travel plans to return home Monday, you are welcome to stay on-site Sunday night so you don't have to rush out. You may also arrive the afternoon/evening before the workshop (after 3pm) if needed for your travel plans. Please confirm this with us if you plan on extended stay.

  • Breakfast is provided each morning of the workshop, as well as lunch on the first day. You will be responsible the remaining lunches/dinners. We have plenty of restaurants and grocery stores nearby and a kitchen on-site for storage and cooking.

  • We will provide each person a small folder with paper and a pen, but feel free to bring a notepad if you prefer.

  • Please wear work clothes including a hat and proper closed toed shoes (sandals not permitted). Please bring your own work gloves as well as a pair of plastic/rubber gloves for wet work.

  • The weather in the high desert can fluctuate significantly, so we recommend checking the weather online prior to your arrival, and bringing layers to ensure you are prepared. You'll receive an additional email after you apply with more information on what to bring, especially if you will be staying on-site.

  • Participants ages 15+ allowed to attend with a parent or guardian.

  • You are welcome to take photos but video and audio recording are not permitted.

  • There is limited wifi access on site


If for some reason you are unable to attend the workshop you registered for, your deposit may also be applied to another course that same year if you notify Cal-Earth at least two weeks before the start of a course.

If you wish to withdraw completely and cannot reschedule, a $50 registration fee will be deducted and your remaining balance refunded if you notify Cal-Earth two weeks prior to the start of the workshop. Any cancellations within two weeks of the workshop will not be refunded, only transfered.

If Cal-Earth cancels the workshop due to low enrollment your tuition will be fully refunded or transferred.