It’s time to take a look into the world of natural building by looking at some of the most influential cob builders. You might have heard of some of these people before as they’ve demonstrated their craft and expertise in the field. Many of them you might just be hearing about for the first time. Without further ado, here is my top 10 list of the most influential people in cob building.


ianto evans cob house builder1. Ianto Evans

Ianto is the director of the North American School of Natural Building and master teacher and builder at the Cob Cottage Company in Coquille, Oregon. Heralding from Wales, where cob is a traditional building material, Ianto brought it to North America. He has building experience on six continents and is one of the highest authorities on cob building.


Laughing House - Cob Cottage Company

Laughing House at the Cob Cottage Company, Coquille, Oregon


Mike McDonough cob builder

2. Mike McDonough

Mike followed through the apprentice program at the Cob Cottage Company in 2008. He currently teaches natural building workshops and does design/build work in North Carolina and New York. Mike was raised in an old stone and timber farmhouse his father renovated in the ’70’s. His building background includes working with Atlanta Habitat for Humanity, the Cob Cottage Company apprenticeship, cob building projects, and working as a mason, carpenter, and strawbaler.

Chapel Hill, North Carolina


Greg Allen cob builder Cob & On3. Greg Allen

Greg was born and raised in Syracuse, NY, and studied design at Syracuse University. Immediately after college in 2008, he was drawn to Oregon for the Cob Cottage Company apprenticeship, and he has been building with cob in central North Carolina since then. Many of his summers have been spent working at a family farm in upstate New York, which is where he accumulated experience with carpentry, outbuilding design, building with salvaged materials, and plenty of work with field stone and roundwood. Greg and Mike McDonough have formed a working partnership on many cob and natural building projects.

Pickard's Mountain cob house Greg Allen

Pickards Mountain Eco-Institute, North Carolina (photo courtesy of


Ziggy and April - natural builders cob builders4. Brian Liloia (Ziggy)

Brian Liloia, also known as Ziggy, lives at Dancing Rabbit Ecovillage in northeastern Missouri, USA. Ziggy builds with cob, straw bales, and timber frames. He started designing his first cob house, “Cobgobatron”, back in the winter of 2008 and finished construction in July of 2009. Ziggy offers natural building workshops and continues to blog about his experiences. You can also follow him on facebook.





Adam Weismann5. Adam Weismann

Adam is a director at Clayworks UK which is based in Cornwall, England. He specializes in building with cob and restoration of old cob buildings. He works with his partner, Katy Bryce, to create very beautiful and ecological cob homes. Together, they also manufacture a variety of clay plasters and run training courses in clay plastering.


Cob Home in Corwall

Cornwall, UK. (Photo courtesy of


Michael G. Smith cob builder natural builder6. Michael G. Smith

Michael’s face and voice is one of the more well known in the natural building realm. With over seventeen years of natural building and cob building experience, Michael is one of the main authorities having designed and built nearly fifty small cob and natural homes. He has worked very closely with Ianto Evans of the Cob Cottage Company and continues to teach workshops on a wide variety of natural building and cob building topics.


A cob house by Michael G. Smith

A cob house by Michael G. Smith (Photo courtesy of


Becky Bee cob builder7. Becky Bee

Becky has many years of experience in cob building and is known as the inventor of the “tarp method” for mixing cob. She is the founder of Groundworks, a cob building company which has built cob structures throughout the world. Becky offers hands-on workshops and hosts natural building symposiums.


Outdoor cob seating area with fireplace

Outdoor cob seating area with fireplace (Photo courtesy of


Christina Ott cob builder8. Christina Ott

Christina is a great inspiration! She became hooked on cob building after taking a 5 day workshop and never looked back. She returned home and built a cob pottery studio in Gulf Breeze, Florida and then went on to apprentice with Ianto Evans and Linda Smiley at the Cob Cottage Company in Oregon. She lives in a cob house in Tennessee that she built and she has made a life for herself through natural building and her company Barefoot Builder. Christina offers design, consulting, building services, and cob building workshops.

Cob Galleria Christina Ott

(Photo courtesy of


Kiko Denzer cob oven9. Kiko Denzer

Kiko Denzer is the cob oven man! He is author of the book Build Your Own Earth Oven which teaches you step-by-step how to build your own fire-burning oven out of cob and natural materials. Kiko has been an inspiration to many cob builders and he continues to teach workshops and promote a healthier lifestyle.


Cob Oven at the Intaba restaurant

Cob oven at the Intaba restaurant (Photo courtesy of


Chris McClellan natural building10. Chris McClellan

Chris is an owner-builder and cob building enthusiast who also owns a micro publishing company, IndustrialRustic, for natural building related books and multimedia. Chris has travelled around the United States visiting natural builders, photographing sites, and creating strong networks within the community. His work is very valuable to the cob and natural building communities as a way to strengthen and promote their cause and building methods.


Chris McClellan natural building

Chris McClellan's abode (Photo courtesy of

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