Rail-free stairs are unnerving for a first-time visitor, but they amplify the home's free-flowing sense of space and structure. The stairs were built inside one of the six concrete towers, and they lead from the central living space to the front door. The experience of moving from the enclosed stairway into the expansive open family area is dramatic.  Photo 3 of 12 in Ray Kappe’s Multilevel House in Los Angeles

Ray Kappe’s Multilevel House in Los Angeles

3 of 12

Rail-free stairs are unnerving for a first-time visitor, but they amplify the home’s free-flowing sense of space and structure. The stairs were built inside one of the six concrete towers, and they lead from the central living space to the front door. The experience of moving from the enclosed stairway into the expansive open family area is dramatic.