$6,950,000
5 bd · 6 ba · 5,421 sq ft · Single Family Residence
685 Harbor Ln, Key Biscayne FL 33149
For Sale · Active listing
Est. payment $38,496/mo · Mortgage calculator
Listed by Avanti Way Realty LLC / Marisela Gonzalez Servat
Contact: 786-663-2842 (listing contact).
Shown through Slice Realty. Requests from this page reach Slice Realty / Propiedad Futura, not the listing agent.
About this home
Set on one of the largest lots in Key Biscayne, a rare 12,200 sqft parcel, this colonial-style residence, known as Villa Rosa, was designed by renowned architect Cesar Molina and sits on a quiet, low-traffic street in a well-established, family-friendly neighborhood. The generous lot allows for a spacious backyard with pool and abundant green space, ideal for outdoor living and entertaining. Double balconies and covered terraces create a seamless indoor-outdoor flow throughout the home. This 5-bedroom residence offers bright interiors and a chefs kitchen with island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite includes a private terrace, oversized walk-in closet with safe, and dual baths with sauna. Also includes maids quarters and hurricane code construction. Minutes from the beach, parks, and top schools - a rare opportunity to own a well-designed home with an exceptional lot on one of Key Biscayne's most desirable streets.
Facts
- MLS #
- A11997896
- Subdivision
- BISCAYNE KEY ESTATES
- Property type
- Residential
- Property subtype
- Single Family Residence
- Sq. ft.
- 5,421
- Price per sq. ft.
- $1,282 / sq ft
- Year built
- 2001
- Days on market
- 180
- County
- Miami-Dade County
- Date listed
- Apr 16, 2026
- Last updated
- Oct 14, 2026
Financial considerations
- Taxes
- $40,335 (2025)
Exterior features
- Waterfront
- No
- View
- Other
- Construction
- Elevated Construction, Piling Construction
- Roof
- Aluminum
- Additional features
- Lighting, Open Balcony
Interior features
- Heating
- Central
- Cooling
- Central Air
- Appliances
- Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Gas Range, Refrigerator
- Window features
- Hurricane Shutters, Impact Glass, Plantation Shutters
- Additional features
- First Floor Entry, Bar, Closet Cabinetry, Cooking Island, Entrance Foyer, Walk-In Closet(s), Family Room, Great Room, Storage
Additional features
- Community
- Beach Club Member Available
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 14, 2026, 11:14 AM 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.