Home / Doing Business / Buildings & Sites Find a new home base Building & Sites Our GIS system, LOIS, is a searchable database detailing information on available buildings in our various developments, such as Foundation Park and the Sioux Empire Development Park and throughout the region. Development Parks Foundation Park Sioux Empire Development Parks Regional Parks Foundation Park Established in 2015, Foundation Park is a 900-acre industrial park located in the northwest quadrant of the intersection of Interstates 29 and 90. Learn More Sioux Empire Development Parks Owned and operated by SFDF, these parks are a low-cost, convenient option for those seeking development opportunities in Sioux Falls. Learn More Regional Parks In addition to the development parks in Sioux Falls, there are a variety of other parks located in surrounding communities that offer many benefits. Learn More LOIS MAP Use our integrated LOIS Map to find a building or shovel-ready site that fits the needs of your business.