Ready to enjoy living on the River? Check out this lot in River Key. Here is a lot ready to build the home of your dreams. Minimum building requirements Ranch 1900 ft) and 2 Story 1400 sq. ft. (ground level). You will have access to your private boat ramp, outside storage and possible inside storage for a fee. City water and City sewer. All plans will need the developer’s approval. Adjacent Rock River Lots are available as a package deal. (1280 Summerdale, MLS# 202403477, and 1288 Summerdale, MLS# 202403480) All lot dimensions are approximate and have a gentle slope to the river. WINNEBAGO COUNTY TAX RATE IS 7.8665