Based in Norton Shores, MI with executive offices in Rosemont, IL, Horizon Group Properties, Inc. is an owner and developer of factory outlet shopping centers and is the developer of a master planned community in suburban Chicago. Contact us:Muskegon, MI OfficePhone: 231.798.9100Fax: 231.798.51005000 Hakes DriveMuskegon, MI 49441 Chicago, IL OfficePhone: 847.292.1870Fax: 847.292.18796250 N. River Road, Ste 10400Rosemont, IL 60018