Duplex for sale by owner in Dekalb, IL 60115. Incredible Value - $169,900 (all appliances and fully furnished) or $166,900 (all appliances and no furniture) Absolutely beautiful 1,685 sq. ft. ranch duplex with 2 split bedrooms and 2 bathrooms. Spacious Emerald Model in the Summit Enclave Subdivision. Convenient location: minutes from I-88 tollway, a few miles from NIU, walking distance to park, shopping and the private Kishwaukee Country Club with reasonable membership rates. Home is fully equip... See site for full property details.