The Home Builders Association of St. Louis and Eastern Missouri began in 1934 when seven builders started the Builder's Guild. In the seventy-plus years since, the HBA has grown to over 800 members and is one of the most active local building industry associations in the country. The HBA is responsible for the geographic areas of St. Louis City and the Counties of St. Louis, St. Charles, Jefferson, Lincoln, Pike, Montgomery, Franklin, Warren, and Washington.