The property at 1500 Sunset was purchased in 1945; the building was dedicated September 9,1949.

The building, designed in 1945 in the style of Frank Lloyd Wright by congregant Lenard Gabert and MacKie & Kamrath Architects, stood out as one of the most innovative and creative buildings in the country. It originally contained 65,000 square feet of floor space with a sanctuary seating 855 and social hall seating an additional 1800.