Aside from its dramatic appearance, the home's subterranean construction comes with an energy efficiency advantage: the surrounding soil is a constant 67 degrees, thereby helping to keep the interiors comfy year-round.  Photo 5 of 10 in 11 Hillside Homes That Feature a Balancing Act With Nature from Cliff House

11 Hillside Homes That Feature a Balancing Act With Nature

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Aside from its dramatic appearance, this home's subterranean construction comes with an energy efficiency advantage: the surrounding soil is a constant 67 degrees, thereby helping to keep the interiors comfy year-round.

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