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Tucked beneath a grassy roof covered by nearly 200 species of plants and grasses, the structure is virtually invisible from the nearby street. In fact, the 1,400-square-foot house is so well hidden in the earth that it doesn’t seem to register on the radar of local wildlife either. Birds, butterflies, bees, dragonflies, hawks, snakes, lizards, and frogs all treat the house like just another grassy knoll.

This Carlsbad home has a tertiary space that space is known in traditional Japanese homes as the "engawa.” To sustain a unified look throughout, the floor and ceiling are clad in ipe wood. Photo by Daniel Hennessy.

Architectural designer Sebastian Mariscal and project manager Jeff Svitak created a house in Venice, California, for Michael and Tamami Sylvester. Known as Dwell Home Venice for its role as an exemplification of modern architecture, the house is an homage to indoor-outdoor living. Photo by Coral von Zumwalt.

Designers Christopher Robertson and Vivi Nguyen-Robertson conceived their house as an unfolding sequence of simple geometric forms: a low concrete wall, a concrete cube, and a boxclad in Siberian larch.

The facade of the three-bedroom house sports a series of extruded pine boxes, which create sheltered spaces that stand up to the area’s fluctuating weather. The owners, Isaac Pineus and Andrew Duncanson, spend summers here with their twin sons.

The Lai family—Mayuko, baby Shota on her lap, David, Maya, and Yumi sitting on a cushion on the deck—relaxes in their indoor-outdoor living space, made by opening the glass sliding doors to connect the living room and engawa deck.