By the time the programme ended with the magazine’s closure in 1966, few, if any homes had honoured the functional criterion of being replicable, and some plans would remain on paper. However, Case Study House no. 23, known as the Triad, ventured towards multiple housing with three structures designed in relationship with each other. This was developed as a pilot for a much larger area, but was never built. Although its execution ultimately fell far from achieving all that the project initially strived for, the Case Studies idea conceived in Arts and Architecture’s dowdy Los Angeles office in the 1940s succeeded in producing some of the most spectacular residential architecture in the US. They would not only be admired by photographers and designers for decades to come, but still to this day have a pronounced influence on architects internationally and at home, all aiming to create the modern way of living. Case Study Houses by Elizabeth A.T. Smith, part of the Taschen’s Basic Art Series 2.0 and the full retrospective Case Study Houses: The Complete CSH Program are both available from [www.taschen.com](https://www.taschen.com/). (Credit: Julius Shulman/J. Paul Getty Trust)