Haas Building may refer to the Haas Building (Los Angeles) and if not then maybe you’re looking for: in the United States (by state then city) Haas Candy Factory, San Francisco, California, listed on the NRHP in San Francisco L. Haas Store, Carmi, Illinois, listed on the NRHP in White County Elias Haas Building, St. Louis, Missouri, listed on the NRHP in St. Louis Haas Building (St. Louis, Missouri), listed on the NRHP in St. Louis Rohm and Haas Corporate Headquarters, Philadelphia, Pennsylvania, NRHP-listed