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Location: Encinitas, Calif.
The Skinny: Completed in 2010, this modern beach house is one of a rare breed in Southern California, a house so energy efficient that it qualifies for a coveted LEED Platinum rating, the highest certification handed out by the U.S. Green Building Council. Located in Encinitas, Calif., just north of San Diego, the three-bed, four-bath structure was designed and built on spec by ArtHaus, which plans on completing two similar homes nearby. Listed for $3.3M, the eco-friendly abode is not short on luxury, with "Orosi tropical hardwood flooring, Caesarstone countertops, and Miele appliances," plus an expansive second-floor deck to take in the sea views.
· 1491 Neptune Avenue [Zillow]