$19,450,000
7 bd · 8 ba · 6,497 sq ft · Single Family Residence
550 Harbor Dr, Key Biscayne FL 33149
For Sale · Active listing
Est. payment $107,734/mo · Mortgage calculator
Listed by Three Bridges Realty, LLC / William Earle
Contact: 305-345-2023 (listing contact).
Shown through Slice Realty. Requests from this page reach Slice Realty / Propiedad Futura, not the listing agent.
About this home
Situated on the exclusive island of Key Biscayne, this extraordinary 7,000sqft waterfront estate sits on a rare double lot located on Hurricane Harbor overlooking tranquil Manatee Lagoon. The property offers an unparalleled sanctuary of luxury and seclusion with features including a 4 car garage ideal for collectors, professionally landscaped yard well suited for outdoor entertaining, 7 bedrooms and 7.5 baths including live-in staff quarters. Expansive living areas flow seamlessly to large outdoor, covered porches becoming your al fresco living room for outdoor dining or relaxing and soaking in the beauty of the natural environment. As the sun hits the horizon, Sunsets light up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr notice
Facts
- MLS #
- A11912105
- Subdivision
- HURRICANE COVE
- Property type
- Residential
- Property subtype
- Single Family Residence
- Sq. ft.
- 6,497
- Price per sq. ft.
- $2,994 / sq ft
- Year built
- 2003
- Days on market
- 344
- County
- Miami-Dade County
- Date listed
- Nov 11, 2025
- Last updated
- Oct 21, 2026
Financial considerations
- Taxes
- $105,472 (2024)
Exterior features
- Waterfront
- Yes
- View
- Lagoon
- Construction
- Elevated Construction
- Roof
- Barrel Roof
- Additional features
- Open Balcony
Interior features
- Heating
- Central, Electric
- Cooling
- Central Air, Electric
- Appliances
- Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Electric Range, Refrigerator, Washer
- Additional features
- Built-in Features, Elevator, Maid/In-Law Quarters, Other
Additional features
- Security
- Smoke Detector
- Community
- Beach Club Member Available, Boating, Tennis Court(s), Pickleball
Mortgage calculator
Includes principal and interest, taxes and insurance.
Rate: Freddie Mac 30-year average (2026-10-15). Estimate only.
Local context (our analysis)
Area stats are available for our covered neighborhoods. See neighborhoods.
Source: Southeast Florida MLS (SEFMLS). Last updated Oct 21, 2026, 7:00 PM ET
Listing data is deemed reliable but is not guaranteed accurate by the MLS. Information is provided 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.