These architect-stamped plans are $210 and include my book, Earth Sheltered Houses, (see description above) which details the step-by-step construction of the Earthwood home. The plans now include a 10-page packet about how to incorporate a 16-sided timber frame in the external walls. This additional material is not stamped by the architect, but should make your local code enforcement officer happy. The frame is easily incorporated into the plans, as many have done throughout North America. If Jaki and I were to build Earthwood again, we would build under the protective cover of a roof supported by a 16-sided frame. See also Earthwood Plans with the Step-by-Step CD for just $20 more, which saves $20 over buying them separately.