While these homes are usually rustic and rough, an upscale model in the West Hills has hit the market for $1,495,000.
Completed in 2002, the 3,607 square foot home was designed by architect Michael Reynolds, who developed the earthship style and founded the design and construction firm Earthship Biotecture.
The aim of the earthship home is to combine reuse and recycling with the harvesting of natural and renewable resources. This house is also made of earth.
Hernandez explains that the house has three walls, all built into the earth.
The north and east facing walls are embedded in the soil up to the ceiling and roof line.
The wall facing west is about half covered by soil.
Placing the house under the soil helps to control the temperature.
The internal climate is also regulated by passive solar heating and air convection through 10 skylights.
The net-zero-emissions property generates more electricity than it consumes and sends its excess back to the grid.
Hernandez says the owners actually get paid by their local utility provider.
The home is equipped with a septic system and is supplied by the city water system.
There are windows throughout the south wall, allowing plenty of light and dramatic views in.
"People who have seen this home have been impressed with its design and floor plan, as well as the totally jaw-dropping and inspiring views," says Hernandez.
The home includes three bedrooms, two bathrooms, an open plan kitchen and living space, and a detached garage.
The understated structure blends into the mountain and sits on two acres of land filled with native and drought tolerant plants.
The house makes full use of the natural surroundings to brilliant effect.
Hernandez says: "My favourite part is the feeling I get when I stand in the great room or in front of an upstairs window and look at the arc of the sun." That feeling is something I've never felt before."
The property is about 15 minutes from the city and definitely offers a secluded atmosphere.
Hernandez believes that the next owner of the house will be someone who values the environmental principles behind the building.
He says: "This property is better for the people, better for the property and better for the planet. That's what the owners are aiming for".