The spacious property at 437 Harbour Drive in Duck Key was sold on Sept. 2, 2025 for $5,000,000 which represents a price per square foot of $1,799. The house, built in 1981, has an interior space of 2,780 square feet. This two-story home has three bedrooms and three baths. The property is equipped with forced air heating and a cooling system. The unit occupies a sizable 1.8-acre lot which provides abundant outdoor space, including a pool.

These nearby houses have also recently been sold:

· A home at 434 Harbour Drive in Marathon sold in May 2022 for $3,250,000. The home has 3 bedrooms and 3 bathrooms.

· In March 2023, a 4,458-square-foot home at 427 Harbour Drive in Marathon sold for $4,650,000, a price per square foot of $1,043. The home has 4 bedrooms and 4.5 bathrooms.

· At 417 Harbour Drive in Duck Key in May 2025, a 1,350-square-foot home was sold for $2,700,000, a price per square foot of $2,000. The home has 3 bedrooms and 3 bathrooms.