Baggins' Burrow This is a 2 bedroom, 2 story, 1230 sf house that is very compact and efficient. It is designed to be dug into a south-facing hill, or to be bermed substantially on the north side. The walls are composed of earthbags filled with local soil and with insulating material, such as crushed volcanic rock or rice hulls, and plastered with stabilized earthen plaster, papercrete, or stucco.
Baca Hybrid This 2 bedroom, 2 story (3 levels), 1250 sf (to the outside) house was designed as a hybrid, passive solar model. It is a compact design that incorporates many aspects of sustainable architecture, including an attached solar greenhouse, a naturally cooled pantry, and the use of some natural, local materials (earthbags and strawbales). The appearance is fairly conventional, but it does have a curved north wall.
Sacred Mountains This is a 2 bedroom, 1 story, 1725 sf (to the outside) house that is designed around the traditional hogan concept of Southwestern native Americans. This was originally designed as a demonstration home for a variety of natural building techniques, so that it employs cordwood, strawbale, adobe, rock, earthbag, and timber-frame aspects.
This Carriage House was initially designed to create garage and shop space, as well as office and storage space for the designer's personal use. There is potentially about 900 s.f. of usable floor area on two stories. It is a hybrid design, utilizing earthbags plastered with papercrete, a steel prefabricated Quonset-style vault, concrete floor, and wood-framed end walls. 
How to Build a Small Earthbag Dome A free, step-by-step description of how a 14 foot diameter earthbag dome was created. This prototype dome could serve as a model for emergency shelters, cabins, studios, garden sheds, etc. It should work well in earthquake-prone areas and places subject to flooding, winds, and hurricanes. This description is presented in three parts.