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Visiting Cal-Earth

Cal-Earth is a Research and Development Institute and as such is closed to the public except during open houses and scheduled tours.

Visiting Cal-Earth

Visiting days for the public to view the prototype structures:

Potluck lunch at Cal-Earth Open House interactive tour is held the first Saturday of every month (except August and in cases of snow/fire that shut down the Cajon Pass section of the 15 freeway). Cal-Earth has held these open houses now for over a decade, and every year more people come to experience it for themselves, and to teach their children how to build a sustainable future. Cal-Earth associates and apprentices give tours and answer questions throughout the day. Most buildings are wheelchair accessible. Please no pets.

Open House Schedule:

  • 10:00 AM — Doors open
  • 10:30 AM — Group Tour of Site
  • 11:30 AM — Lecture given by Dastan Khalili & Sheefteh Khalili along with guest speakers
  • 1:00 PM — Potluck lunch. We encourage you to participate by contributing either a dish (for four to five people), or a minimum donation of $7.
  • 3:00 PM — Site Closes
2014 Open House Dates 2015 Open House Dates


*no open house in August*
September 6, 2014
October 4, 2014
November 1, 2014
December 6, 2014

January 3, 2015
February 7, 2015
March 7, 2015
April 4, 2015
May 2, 2015
June 6, 2015
July 11, 2015 (2nd Sat)
*no open house in August*
September 5, 2015
October 3, 2015
November 7, 2015
December 5, 2015

In the case of rain, Open House is postponed to the following Saturday

Personal tours are by appointment only and are available Monday-Friday at 1pm. Tours can also be scheduled throughout the day on Saturday and Sunday. Please contact us for special arrangements.

  • For a 90-minute tour (up to five people): $50 donation
  • Groups of six or more individuals: $10 donation per person

For technical consultations or extended tours please contact the site for more information.
Please email us to schedule a tour.

Field trips to Cal-Earth can be arranged for classes or groups of students. The children will learn about living in harmony with the environment and how to build homes and emergency shelters with arches, domes, and vaults using the earth under their feet. School groups and other institutions can register for a tour, morning, or day-long workshop (click here for registration form).
Schools may also undertake projects in the classroom or school site using Cal-Earth’s educational tools—books, DVDs, and building kits. Visit the Children at Cal-Earth page for additional information and for questions please send us an email.

Dastan Khalili and Sheefteh Khalili

Cal-Earth visiting


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Photography, filming, video: By permission only (see sign at Cal-Earth front gate). For personal use only. Publication/distribution permission is required in writing from Cal-Earth/Geltaftan.

Address of Cal-Earth Institute Site:
10177 Baldy Lane, Hesperia, CA 92345
Follow the blue and white Hesperia City Cal-Earth Institute direction signs: Hesperia Main Street exit from the 15, to Topaz Avenue north, left on Live Oak Street, right on Baldy Lane.

Mailing Address only:
P.O. Box 1977, Claremont, CA 91711-8977
tel: 760.956.7533 | fax: 760.244.2201

Monday through Friday the Cal-Earth office can be telephoned from 9:00 a.m. to 1:00 p.m. Pacific Time. Due to high volume of calls and emails, response time will vary.

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Cal-Earth Inc. / Geltaftan Foundation | Hesperia, California | Your Privacy | Contact Us
Superadobe technology (sandbag tubes and barbed wire) was designed and developed by architect Nader Khalili and Cal-Earth Institute, and engineered by P.J. Vittore. Superadobe is a patented system (U.S. patent #5,934,027) freely put at the service of humanity and the environment. Licensing is required for commercial use.
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