119 Harbor Dr, Key Biscayne, FL 33149

$3,300,000 · 3 beds, 2 baths, 1,554 square feet · Active

Rare opportunity to own a 7,500 SF lot on coveted Harbor Drive, one of Key Biscayne’s most desirable residential streets. An exceptional homesite to build your dream island residence and create a custom home tailored to your lifestyle. The property currently features a classic Mackle home with 3 bedrooms, 2 baths, office/den, spacious garage, pool, outdoor entertaining area and lush tropical landscaping. Enjoy the existing home, renovate, or build new and take full advantage of this prime location. Moments from highly regarded public and private schools, beautiful beaches, parks, dining, shopping and recreational amenities. A coveted address offering the very best of Key Biscayne island living.

Listing courtesy of Fortune Christie's International Real Estate, the listing brokerage, 305-400-6393. MLS number A12082121.

Listing data courtesy of MIAMI REALTORS® MLS. Updated Oct 20, 2026 2:50 AM ET. MLS disclaimers

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Miami MLS. Listings courtesy of MIAMI REALTORS® MLS (SEFMLS). The data relating to real estate for sale on this website comes in part from the Internet Data Exchange (IDX) program of MIAMI REALTORS® (Southeast Florida Multiple Listing Service, SEFMLS). Real estate listings held by brokerage firms other than Winslow Homes LLC are marked with the name of the listing brokerage. IDX information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. The data is deemed reliable but is not guaranteed accurate by the MLS, and all information should be independently verified. Based on information from the Southeast Florida Multiple Listing Service (SEFMLS) as of October 20, 2026 at 2:50 AM Eastern.

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