Beautiful Derby Estates is located at the intersection of Hwy 23 and Derby Line Rd in Genoa, IL. Choose your own builder. One-story home not less than 2,000 sq. ft., two-story home not less than 2,500. Front elevation at least 50% brick or stone. Architectural review of all home and landscape plans. Subdivision is subject to the City of Genoa’s Garage Placement Standards and to a Special Assessment Area not to exceed $.50/$100 of equalized assessed valuation to maintain common space..