Bailey House – Case Study House, Modern steel-framed house in the Hollywood Hills, Los Angeles, California, United States

The Bailey House is a single-story, L-shaped steel-framed house of about 120 m², built on a level site in a canyon. It has an east-west living wing and a carport to the north that is integrated into the structure. Floor-to-ceiling windows line the north and west facades, while white metal panels screen the street side.

This house emerged from the Case Study House Program launched by Arts and Architecture magazine after World War II to create affordable modern housing prototypes. The program aimed to demonstrate how architects could use new materials and innovative design to reshape residential building for post-war America.

The house was sold at an art auction in 2006 to a Japanese art collector for about 3.1 million US dollars, and since then it has also been used for art exhibitions. Its steel frame let Koenig free the interior of load-bearing elements, giving the open plan the Baileys, a childless "contemporary-minded" couple, wanted.

The house sits on a level lot in a canyon of the Hollywood Hills; the German Wikipedia places it in Bel Air, about five kilometres from Koenig's Steel House (Case Study House No. 22). It is a private residence, sold at auction in 2006 to a Japanese collector for about 3.1 million dollars and since used for art exhibitions, so visits depend on those events rather than regular opening hours.

The photographs that made Case Study House #21 famous were taken in 1960 by Julius Shulman, himself a Case Study client. His images of houses #21 and #22 later appeared in L'Uomo Vogue and, in 1989, in the exhibition "Blueprints for Modern Living" at the Museum of Contemporary Art, Los Angeles.