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January 18, 2026 ∞ 5:00 pm - February 22, 2026 ∞ 5:00 pm
Cob Pavillion with Living Reciprocal Roof in Puerto Rico!
February 8, 2026 ∞ 4:00 pm - March 15, 2026 ∞ 4:00 pm
Tasmania Advanced Cobber “Full Build” Certification
$2600 – $2800
April 6, 2026 ∞ 8:00 am - April 12, 2026 ∞ 5:00 pm
Hempcrete Design and Construction Comprehensive Training
$700 – $800
April 24, 2026 ∞ 8:00 am - April 30, 2026 ∞ 5:00 pm
Hempcrete Design and Installation Comprehensive Training
$700 – $800
May 1, 2026 - May 10, 2026
COB OVEN + ADOBE THERMAL MASS HEATER | INTENSIVE | GRÂNDOLA, PORTUGAL
$490
May 4, 2026 ∞ 8:00 am - May 10, 2026 ∞ 5:00 pm
Hempcrete Design and Installation Comprehensive Training
$700 – $800
May 24, 2026 ∞ 12:00 pm - June 21, 2026 ∞ 2:00 pm
Cob Outdoor Kitchen with Oven, Rocket Stove Cooktop & Reciprocal Green Roof at Sitio do Valverde in Coruche, Portugal
$2065
May 31, 2026 ∞ 12:00 pm - July 5, 2026 ∞ 2:00 pm
California Complete Cob Bungalow in Santa Cruz, California!
$2600
July 5, 2026 ∞ 12:00 pm - August 9, 2026 ∞ 2:00 pm
5-Week Full Build For ALL Levels: A Complete Cob Cottage at Sitio do Valverde in Coruche, Portugal
$2600
August 22, 2026 ∞ 11:00 am - August 23, 2026 ∞ 5:00 pm
Rocket Mass Heater Build (2 Day) — Montana
$290
