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Visiting Cal-Earth

Open House
**No Reservations Required**
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 2016 Open House Dates 2017 Open House Dates

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
12:30 PM — Potluck lunch
You are in vited to participate by contributing either a small dish
or a donation of $5
(Cal-Earth provides some dishes)
3:00 PM — Site Closes

January 2, 2016
February 6, 2016
March 5, 2016
April 2, 2016
May 7, 2016
June 4, 2016
July 2, 2016
*no open house in August*
September 3, 2016
October 1, 2016
November 5, 2016
December 3, 2016

January 7, 2017
February 4, 2017
March 4, 2017
April 1, 2017
May 6, 2017
June 3, 2017
July 1, 2017
*no open house in August*
September 2, 2017
October 7, 2017
November 4, 2017
December 2, 2017

In the case of official U.S. holiday or shut down of Cajon Pass due to weather/fire, Open House is postponed to the 2nd Saturday

Personal tours
Tours are available 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. NOTE: Tours require a $20 reservation deposit. If tour is canceled at least 24 hours in advance, deposit is refunded.

Field trips
Field trips 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.

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

Superadobe technology 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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