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Natural Building with Cob & Clay

May 15 - 17, 2026 8:30 AM - 5:30 PM Vernonia Springs, OR 14 spots left

About this Course

Get hands-on experience building with earth, straw, and sand in this 3-day natural building intensive. Cob is one of the oldest and most sustainable building materials on earth — and you don't need any prior construction experience to learn it.

Course highlights:
• History and global traditions of earthen building
• Cob mix ratios and testing methods
• Foundation design and drainage for earthen structures
• Wall raising, sculpting, and finishing techniques
• Natural plasters: clay, lime, and earthen finishes
• Integrating passive solar design principles

Participants will build a small demonstration structure together over the 3 days. Tools and all materials provided.

$425.00

May 15 - 17, 2026
8:30 AM - 5:30 PM
Vernonia Springs, OR

Registration required — we will contact you with details.