One man sits at a blue dining table beneath a large pitch skylight and looks on as the other works at sink set into wood counter in kitchen beside a sunken, concrete-walled deck dug into grassy slope in home in Sear Ranch, California, designed by architect David Ross and artist Mark Dutcher.

Construction Diary: At Sea Ranch, a Couple Build a “Forever Moving” Home Made to Change With Them

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The below-grade kitchen/dining room opens to a sunken wood porch. Sliding glass doors and an operable awning window from Fleetwood provide natural cross ventilation for cooling. The site is located in a forested area but is "brighter and less sequestered than you’d expect," says David, thanks to the surrounding Sea Ranch commons.