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Building a Cob Community Space for the Bell-Hayes Family at “Rock the Bells” Homestead in Central Texas (Waco)

September 29, 2024 ∞ 12:00 pm - November 3, 2024 ∞ 12:00 pm

$2500 – $2700




Puerto Rico certified Cobbers taking a well-deserved chillout after completing the Green Roof on schedule on the last day of the workshop! (February 2024)


We will be building a 14m2/150ft2 round cob bungalow/cottage for our Host family. Students in this Advanced Cobber Certification training will, as always, learn all the steps to building a complete cob building from scratch: digging the trench and building a stone foundation and pouring the floor in week 1, building the monolithic cob wall with all its details in weeks 2 & 3, sculpting the wall in week 3, plastering in week 4, building the completed roof in weeks 4 & 5 and finishing the wall and the second floor coat at the end of week 5.





Megumi from Japan blissed out as she sculpts Cacao beans honoring the fruit of the land at Finca Remedio, Puerto Rico (February 2024)


The 35-day Advanced Cob Building Workshop consists of 25 days (Monday through Friday) of learning & construction for 4 hours in the morning and 3 hours in the afternoon with theoretical instruction (lectures with graphics) on most Monday, Wednesday and Friday afternoons to complement the hands-on experience.

Students arrive on Sunday between noon and 2pm and settle in.  Saturday arrival is ok as well after confirming with Claudine who will confirm with Host. (Note: Students are responsible for their own meals until dinner on Sunday). The workshop begins at 4pm with the Opening Circle followed by a Host Site Orientation and Introduction to the Project. Dinner is served at 6pm, and will be followed by an Introduction to the 5-week Workshop by Instructor & Assistant.  Monday morning we begin digging the trench for our Cob Building!!!!


Cob Wall rising…with Alejandra and Britt on task in Puerto Rico! (February 2024)


Following Breakfast from 7:30-8:15am, the morning learning/building session begins at 8:30 am and lasts until 1pm with a 20-minute snack pause at 11am. Lunch break is from 1pm to 2:30pm, which includes a rest time before the 3-hour afternoon session begins. Mondays, Wednesdays and Fridays there is a 60-minute lecture, followed by construction time. Tuesdays and Thursdays students begin building again right after the rest time. After class in the afternoon there is a 90-minute break before dinner (served from 7pm to 8pm), in which students are encouraged to stretch, do some type of relaxation/movement practice, go swimming, walking and just relax.


Shared leadership of morning movement practices every morning makes for healthy Cobbers! (February 2024)


There is sometimes a work trade student officially or informally leading yoga and movement practice in the mornings or afternoons (depending on student preference). There will also be 3-4 evenings (once a week) after dinner for showing slides,videos and having Course-related discussions. Other evenings are mostly free and sometimes students offer informal courses in their specialties and passions. Mondays are reserved for our weekly Council Circle, where we do a deeper sharing and listening to attend to the inner worlds of our students and staff during this intense experience.


Final Council Circle under the inspiration of the bamboo reciprocal roof in Borikén (February 2024)


On weekends students are free to explore the area, rest onsite, and even continue building, with Instructor approval.  All weekend meals are provided by students who can use the kitchen.  Host and other students can carpool into town for weekend food provisions.
The 35-day Course will offer practical learning by building a complete 15m2 curvilinear building from foundation to roof, as 
described in the “Project” section. Those who complete the 35-day Workshop will receive an Advanced Cobber Certificate of Completion for Foundation, Cob Walls (which includes Door, Windows, Shelves, Art, Electrical Housing & Plumbing preparation), Floor, Plaster & Roof.

The Advanced Cob Building Workshop begins on a Sunday at 4pm and ends on a Sunday, 5 weeks later, after the morning Closing Circle & Brunch. Students can arrive a day or two before to acclimate and settle in (please let us know) but will need to cover their own food
 needs unless a work trade is approved by Host (to be decided closer to the date).

The daily schedule (subject to slight modifications due to climate/time of year) will be:

7:30-8:15 Breakfast
8:30-1:00 Class
1:00-2:30 Lunch
2:30-5:30 Class (Lecture on MWF’s)
5:30-7:00 Rest/Yoga
7:00-8:00 Dinner
8:00-9:00 Slides/Videos/Discussion (once a week)

Students are expected to be on time and participate in all sessions and required activities as the goal of building a full construction depends on the whole group working together!



Students will learn every phase of building a cob building from foundation through the reciprocal roof in hands-on building and lectures/theory. In addition to the lectures,
 slideshows and videos will be shown to support and enhance their understanding of cob materials, cob building, design, geography, budgeting, business options and legal issues.

Our hands-on practice will include:

digging foundation trench
pouring gravel and inserting drainage pipe (if applicable)
building foundation stemwall
analyzing soils and materials
making test bricks
deciding on correct mixture
deciding on best location
making cob w/ partner and solo
building with cob
preparing and inserting the door
preparing and inserting fixed and opening windows
preparing and inserting shelves
inserting bottle windows, glass and other objects
inserting electrical housing and outlet/switch boxes (when applicable)*
insert PVC pipe for plumbing in walls (when applicable)*
preparing and applying earthen plaster (1 coat)
pouring an earthen floor (2 coats)
preparing walls for roof connection
building reciprocal roof frame
putting on roof sheathing and other elements
installing green roof
making small-scale cob designs of future projects, time permitting

In addition to Cob Building practices, the Course material
also includes:

legal cob construction practices & the international cob code (Appendix AU in the IRC)
cost analysis
creating a cob business (building/teaching)
assisting, interning and teaching with CruzinCobGlobal

*While the insertion of electrical housing and one or more outlet/switch boxes and PVC pipes to hold plumbing are always included in the workshops, the simplicity or complexity depends on the host’s design and preferences. There will be no electrical wiring or plumbing pipes installed during workshop. That is beyond the focus of this course and requires professional experience and certification/licensing.


September 29, 2024 ∞ 12:00 pm
November 3, 2024 ∞ 12:00 pm
$2500 – $2700


Rock the Bells family homestead
Waco, Texas United States + Google Map


Whatsapp +1 831 212-7225
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