Defined by an arc, this gently curving Earthbag Arc House uses passive solar design to capture the sun’s energy during the day and then store it in its interior mass to stabilize interior temperatures, even in cold climates.
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.
Earth-bermed Natural House Here’s a dirt-cheap energy-efficient design. Features include a loft for sleeping and office space, and south-facing windows for solar gain and daylighting. A sloped living roof and earth berming helps the natural house blend into its environment. 287 sq. ft. interior plus 287 sq. ft. loft, 1 bedroom, 1 bath
The Earthworm Studio was custom designed for a client who wanted total concealment by building into a hillside and using living roof and living walls. They also requested minimal environment impact and lowest possible cost off-grid design. 662 sq. ft. interior including bedroom loft, 1 bath; footprint: 18.5′ x 39′.
This charming curved English Cottage is styled after homes from a bygone era, when rugged timbers supported the roof and walls were reassuringly thick and strong. This modern cottage adds a spacious kitchen with pantry and island, passive solar design, built-in cabinets and computer desk. 834 sq. ft. interior, 2 bedroom, 1 bath
In this unique design, a two story roundhouse adjoins a hexagon. The Hexagonal/Round House features include a large bedroom in the round, a wood stove insert built into a central stone column, and a large loft above the bedroom for use as a home office, etc. 18′ interior diameter roundhouse = 254 sq. ft., roundhouse loft = 248 sq. ft., 20.5′ hexagon = 372 sq. ft., total = 874 sq. ft. interior; footprint: 28′ x 44′
This one and a half story Hobbit House features drop-down stairs that lead to a spacious loft, wood stove heating, and modern kitchen with pantry space for Hobbit food. The undulating thatch roof or living roof is created by varying the knee wall height above the bond beam. 24-6″ diameter with 471 sq. ft. interior, 471 sq. ft. loft, total 942 sq. ft. interior, one bedroom, one bath.
This Mediterranean House has curved walls, a common plumbing wall, large closets and wood stove. 832 sq. ft. interior, 2 bedroom, 1 bath; footprint: 27′ x 41′
The Native Spirit house plan blends a hexagonal dwelling with a soaring tower, all built of earthbags. The first floor of the tower serves as a cool pantry that keeps food cool without electricity. Other levels can be used as office space, a second bedroom or storage. The top level is an observation deck – truly a stunning feature in such an affordable home. 565 sf interior, plus 291 sf tower (4 levels) for a total of 856 sf.
The Roundhouse Studio is perfect for home offices and studios of all kinds, and also as a tiny house. Ideal beginner’s project. This studio is one of the simplest, most practical of Owen’s designs. Multiple units can be connected if you want to add on later or they can be built as free standing structures in clusters pavilion style. Numerous roof options available.
10 meter Roundhouse 10 meters (33′) diameter is the maximum size of a round earthbag structure before needing buttressing. This spacious design features a large kitchen and south-facing window wall for excellent solar gain. 855 sq. ft. interior, 1 bedroom, 1bath
This 1.5 Story Roundhouse features two large bedrooms with spacious closets, efficient kitchen and loft for home office or 3rd bedroom. The inner circular wall is built of recycled brick for strength and rustic effect. The loft has a 3′ circular skylight and a knee wall with view to main living space on first floor.
This charming 2-Story Roundhouse has everything you need within easy reach on the main floor, and a comfortable bedroom loft above with large closet and seating area next to the balcony railing. 452 sq. ft. interior plus 226 sq. ft. loft, 1 bedroom, 1 bath
2-Story Roundhouse above Survival Shelter It’s prudent to have a safe place to go to in case of emergencies, and what better place than your basement. Hurricanes, tornadoes, blizzards and other natural disasters are all too common. While others panic and run for last minute preparations, you can calmly retreat to your basement (through a hidden trap door) that’s wisely stocked with everything you need to ride out the disaster.
This modern Solar Pit House is based on the traditional pit house. The construction is much the same. Additional ‘modules’ have been added to create an elongated rectangular design for added living space and windows added on the south for solar gain. This plan is available for free!
In addition to charm, this Solar Santa Fe home is designed to optimize passive solar. A tiled roof along the south side is sized to prevent overheating in summer, but allow maximum solar gain in winter. Quality detailing is evident throughout – open, comfortable layout, rough-hewn posts and vigas (round roof timbers), built-in bench and kiva-style fireplace (or wood stove insert).
This unique earth-sheltered Spiral design includes a large grow bed, exposed timber ceiling and living roof. 740 sq. ft. interior, 1 bedroom, 1 bath
This unique earth-sheltered Spiral 2 design includes a large grow bed, exposed timber ceiling and living roof. Ample light is provided by the window wall next to the grow bed, window and door glazing, and suntubes. Distinguishing features include two bedrooms, masonry two-way fireplace, covered porch and cool pantry for storage of food.
The Spiral Dome Magic homes combines the Peace Dome and Spiral Houses, which are also available separately. But by combining them it really creates a truly exciting design. This unique, almost Hobbit-like earth-sheltered design includes a large grow bed, exposed timber ceiling and living roof. 452 sq. ft. interior dome, 740 sq. ft. interior spiral, plus pantry, 2 bedroom, 1 bath
This round Subterranean Survival Shelter for up to 4-5 individuals is designed for survival through war, plague, etc. It is low cost, durable and practical. 20′ DIA (314 sq. ft. interior plus pantry)
The Torus Design concept was inspired by the movie Thrive, which outlines ways of creating prosperity and equality in the world. The design brings together three emerging trends: increasing self sufficiency — including renewable energy and food production, families moving back together to save money, and sustainability. 2,224 sq. ft. interior, 564 sq. ft. greenhouses, 1,520 sq. ft. courtyard, each side has two bedrooms, two baths.
This intriguing Tower House slopes from 21 feet interior diameter at ground level to 13 feet diameter at the upper deck. Perfect for environments with high winds and good views. 346 sq. ft. interior first floor, 227 sq. ft. upper floor, 133 sq. ft. observation deck, 623 sq. ft. total interior; footprint: 24′ diameter
This Triple Roundhouse Cluster design connects three sloped roof roundhouses and adjoining closets to create a unique roundhouse cluster design that is earth-sheltered on three sides – east, west and north – with a sunny courtyard on the south. 785 sq. ft. interior, 2 bedroom, 1 bath; footprint: 28′ x 58′ plus buttresses.
Zero Energy One is a major step forward in sustainable housing. This revolutionary design features zero net energy use, extremely low ‘near zero’ embodied energy and extremely low cost. This design is the result of years of research in energy efficiency and low cost, alternative building methods.
Zero Energy Two is similar to the Zero Energy One plan above, but it has two bedrooms and 2 bathrooms, as well as separate airlock entries into the bedrooms, bermed mechanical room and pantry. There is even a built-in solar oven in the kitchen.
Zero Energy Four is a four bedroom version of the Zero Energy home series. This revolutionary design features zero net energy use, extremely low ‘near zero’ embodied energy. 1,693 sq. ft. interior plus 901 sq. ft. interior greenhouse, 4 bedroom, 2 bath; footprint: 40′ x 109′ not including cisterns or optional garage.