Healdsburg applied for a grant from the Carnegie Foundation in 1908 and was awarded a $10,000 grant in 1909. It was one of five Carnegie Library buildings constructed in Sonoma County. Noted Bay Area Architect Brainerd Jones designed the building in Classical Revival style, incorporating the columns, stairs, and pediment typical of Classical and Neoclassical structures. Contractor Frank Sullivan of Santa Rosa was the contractor, and it was built during 1910–11.[2] By the mid-1980s the library outgrew the structure and moved to a new facility. After extensive interior renovations the Healdsburg Museum opened in the building in 1990.