Architect and developer Jonathan Segal's cast-in-place concrete house for his family in La Jolla, California, brings urbanity to the suburbs. In temperate La Jolla, California, a narrow building lot and a desire for a generous outdoor living area gave rise to the straightforward rectilinear motifs of the 5,300-square-foot Cresta House, a three-story coastal residence designed by San Diego architect Jonathan Segal for himself and his wife, Wendy. “The house wanted to be a pure form on this site,” Segal says. He conceived the cast-in-place concrete structure as an orthogonal volume, slicing and shaping rooms and functional spaces within and around