591 Burnham Avenue Exceptional mixed-use opportunity situated on five oversized lots totaling 14, 800 sq. ft., offering outstanding flexibility for a wide range of commercial uses. The main level is thoughtfully designed for business operations and includes a professional reception area, eight private offices, two restrooms, a kitchen or janitorial room, and a large workshop space. The functional layout supports administrative, service-based, light industrial, or professional office use, making it ideal for owner-users or expanding businesses seeking room to grow. The upper level features a residential unit with a spacious bedroom, 1.5 bathrooms, open-concept living and dining area, full kitchen, and in-unit laundry. This space presents an excellent opportunity for additional rental income, live/work convenience, or on-site management. With substantial land size, versatile interior configuration, and income potential, this property is a strategic investment opportunity in Calumet City. Property is being sold AS-IS. Buyer to verify zoning, permitted uses, and to assume any repairs required by the City of Calumet City. The buyer is responsible for verifying zoning and permitted use, and to assume repairs required by Calumet City.