Voice of the Residential Construction Industry Since 1951. The Home Builders Association of Central Arizona (HBACA) is a trade association for the residential construction and development industry. The Association provides a forum through which these businesses can work together to remain informed regarding new and proposed policies advanced by the local, state and federal governments which affect the housing industry. The Association acts as a source of timely and reliable information concerning the state of the local building industry and works to eliminate overly restrictive and costly building laws and regulations that drive up the cost of housing.