This 3,750-square-foot home is perched on an infill lot in the neighborhood of Mar Vista, overlooking the city and ocean beyond. Designed for a young family, the two-story four-bedroom home sits alongside an entry garden with a swimming pool. The cool gray exterior opens up to light-filled interiors with polished concrete floors at the ground level and fumed oak floors on the second level. Walnut cabinetry with custom bronze and brass hardware line the walls. Floor-to-ceiling windows open onto outdoor spaces, including a roof deck, that extend living to the outdoors.