Capt. John Foley Horr House, Historical residence in Marco Island, United States.

The Capt. John Foley Horr House is a ruined residence on the north side of Whiskey Creek Drive on Key Marco, formerly Horr's Island. Only tabby ruins remain of the structure, built of the shell-and-lime concrete typical of coastal Florida.

Captain John Foley Horr built this residence on Key Marco, then called Horr's Island, where he also planted a citrus grove and pineapple plantation. The house was listed on the National Register of Historic Places on October 8, 1997. Only tabby ruins of the structure remain today.

The house is named for Captain John Foley Horr, who settled on Key Marco, formerly Horr's Island, and planted a citrus grove and pineapple plantation there. Visitors today find only tabby ruins of the residence, a concrete made from burned oyster shells, so the site recalls the plantation economy Horr ran on the island's southern portion.

Only tabby ruins of the house remain, on the north side of Whiskey Creek Drive on Key Marco, the island once called Horr's Island. There is no interior to enter, so plan to view the surviving tabby walls from outside. The site lies on the southern portion of Marco Island.

Only tabby ruins of the house survive today; the concrete made from burnt oyster shells, sand and water was a common building material on this part of the Florida coast. Horr also planted a citrus grove and a pineapple plantation on Key Marco, then called Horr's Island after him.