Ingenious New Building Method Replaces Concrete Block with Rammed Earth

David Easton, the founder of a Napa, California, company called Rammed Earth Works, has built more than 300 rammed-earth homes in 35 years. He completed another in 2013, this time with one crucial difference. This relatively modest 3,000-square-foot house was made—without building forms— of rammed-earth blocks.