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Homes for sale in Key Biscayne
Single Family Residence

685 Harbor Ln

Key Biscayne, FL 33149
$6,950,000
Beds
5
Baths
5 + 1 half
Sq ft
5,421
Year built
2001
Price per sq ft
$1,282

Listing courtesy of Marisela Gonzalez Servat, Avanti Way Realty LLC

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.

Details

Property

Type
Single Family Residence
Style
Attached, Two Story
Building
Pool Only
Year built
2001
Lot size
9,000 sq ft
Building name
BISCAYNE KEY ESTATES
Subdivision
BISCAYNE KEY ESTATES
County
Miami-Dade County
Faces
Northwest
Flood zone
AE

Interior

Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Gas Range, Refrigerator
Flooring
Marble, Tile, Wood
Cooling
Central Air
Heating
Central
Features
First Floor Entry, Bar, Closet Cabinetry, Cooking Island, Entrance Foyer, Walk-In Closet(s), Family Room, Great Room, Storage

Exterior and parking

Exterior
Lighting, Open Balcony
Patio and porch
Open Balcony, Open Porch, Patio
Pool
In Ground
Parking
Driveway
Garage spaces
1
Construction
Elevated Construction, Piling Construction
Roof
Aluminum

Community and fees

Annual taxes
$40,335
Terms
All Cash, Conventional

Neighborhood

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The data relating to real estate for sale or lease on this website comes in part from the Internet Data Exchange (IDX) program of MIAMI REALTORS® MLS. Listings are provided by participating brokers.

Information is deemed reliable but is not guaranteed and should be independently verified. It is subject to change and is provided for consumers’ personal, non-commercial use only, to identify properties they may be interested in. Listing last updated September 8, 2026.