7909 Rose Island Rd sits directly on the Jefferson-Oldham county line in Prospect, KY 40059, offering a rare smart estate with a climate-controlled garage designed to protect high-value vehicles, equipment, or collections from Kentucky's humidity and temperature extremes. The garage maintains consistent temperature and moisture levels year-round, safeguarding finishes, mechanical components, and stored assets that standard structures simply cannot protect. Positioned in one of the most sought-after corridors in the Louisville metro, this property combines the infrastructure of a serious collector or operator with the privacy and acreage characteristic of established Prospect estates.