The Conley-Maass Building, also called the Maass and McAndrew Company Building, is one of the oldest remaining places of business in Rochester, Minnesota. Originally built as a woolen mill, it was the site of Conley Camera Company from 1904 to 1909. As such, it appeared in several Sears catalogs. Maass & McAndrew Plumbing and Heating occupied the building from 1910 to 1955. It has also housed the Fraternal Order of Eagles, Veterans of Foreign Wars, the Loyal Order of Moose, The Salvation Army, Rochester Ballet School, Masque Theatre, and Words Players.