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Homes for sale in Key Biscayne
Single Family Residence

690 Warren Ln

Key Biscayne, FL 33149
$5,478,000
Beds
4
Baths
3 + 1 half
Sq ft
3,549
Year built
2000
Price per sq ft
$1,544

Listing courtesy of Brigitte Nachtigall, One Sotheby's International Realty

About this home

A truly exceptional Miami Modern Tropical residence set on a prime 8,010 SF corner lot, offering 3,549 SF of beautifully curated living space with 4 bedrooms and 3.5 bathrooms. Designed by architect Hervin Romney, a founding member of Arquitectonica, the home reflects a distinctive architectural vision inspired by the organic principles of Frank Lloyd Wright and the expressive forms of Antoni Gaudí, where art, design, and nature seamlessly converge.

This residence captivates with its abundance of natural light, soaring high ceilings, fluid open spaces, and harmonious lines that create a sense of warmth, sophistication, and effortless flow throughout the main living areas.

The beautifully remodeled kitchen and bar are a true centerpiece, featuring high-end appliances, premium finishes, refined craftsmanship, and a design that balances functionality with striking aesthetics.

Step outside into your own private tropical retreat, where lush landscaping, graceful curved terraces, and a stunning swimming pool create an atmosphere of tranquility and escape. This outdoor sanctuary is perfect for both relaxation and entertaining.

As an added privilege, the property includes membership to the Key Biscayne Beach Club, offering exclusive access to one of Miami’s most coveted coastal lifestyles. Key Biscayne is renowned for its pristine beaches, charming restaurants, and vibrant yet relaxed atmosphere—delivering a true island lifestyle just minutes from the city.

Details

Property

Type
Single Family Residence
Style
Attached, Two Story
Building
Pool Only
Year built
2000
Lot size
8,010 sq ft
Building name
BISCAYNE KEY ESTATES
Subdivision
BISCAYNE KEY ESTATES
County
Miami-Dade County
Faces
East
Flood zone
AE

Interior

Appliances
Dishwasher, Disposal, Dryer, Gas Range, Ice Maker, Microwave, Refrigerator, Trash Compactor, Wall Oven, Washer
Flooring
Marble, Wood
Cooling
Central Air
Heating
Central
Laundry
Utility Room/Laundry
Features
Built-in Features, Closet Cabinetry, Cooking Island, Fire Sprinklers, Volume Ceilings, Walk-In Closet(s), Den/Library/Office, Utility Room/Laundry

Exterior and parking

Exterior
Open Balcony
Patio and porch
Open Balcony
Pool
In Ground
Parking
Driveway
Garage spaces
2
Construction
CBS Construction
Roof
Aluminum, Flat Tile

Community and fees

Security
Fire Sprinklers, Smoke Detector
Annual taxes
$19,950
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 14, 2026.