Nader Khalili, 72; developed low-budget adobe housing for use as emergency shelter and in areas of high poverty (March 5)

Ralph Rapson, 93; modernist architect designed the Greenbelt House for the 1940s Case Study House program in Los Angeles and later the Guthrie Theater in Minneapolis (March 29)

Walter A. Netsch Jr., 88; prominent Chicago architect designed the Cadet Chapel at the Air Force Academy in Colorado Springs, Colo. (June 15)

Joe B. Jordan, 82; San Fernando Valley-based architect built the Van Nuys Superior Court complex as well as the barracks at the Pitchess Detention Center (Aug. 11)

Joern Utzon, 90; Danish architect designed the iconic Sydney Opera House (Nov. 29)

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