Right off of Interstate 285 North are the Perimeter Center communities of Dunwoody and Sandy Springs Many Fortune 500 companies call this area just north of downtown Atlanta home. Perimeter Center real estate is also known for its variety of home options for busy professionals and their families. Residents have a choice of many picturesque homes that feel as if they are in the middle of the country, quaint subdivisions, and much more. Officially incorporated as a city in 2008, Dunwoody is a prosperous community located at the most northern tip of DeKalb County and shares a common boundary with Sandy Springs. Newly incorporated as of 2005, the city of Sandy Springs was recognized as the 2nd wealthiest community in the South, and the 9th wealthiest in the United States. Perimeter Center homes in the Sandy Springs area include single-family homes, retirement communities, condominium and townhome developments and more.