Brea City Hall and Park, in Brea, California, was listed on the National Register of Historic Places in 1984.The Brea City Hall, designed by architect Allen Ruott, is Art Deco in styling and was built in 1928. It included a public library. A bathhouse and swimming pool and the surrounding park were also all designed by Ruott, as a unit. According to the NRHP nomination, the "use by Ruoff in the 1920's of Art Deco/Spanish Revival styling for civic architecture constitutes a major landmark in the small-scale urban environment of Brea and Orange County."The park, pool and city hall were funded by a $60,000 bond approved by the municipality in an October 1927 special election.An American Legion Hall, built in 1931, is another contributing building in the listing.The pool, called the "plunge", is a 25-meter municipal pool.Brea was incorporated in 1917 and then had 732 citizens.The facilities served, among others, oil field workers and their families who lived in an adjacent neighborhood developed in the 1920s by the Union Oil Company.