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690 Warren Lane Key Biscayne FL 33149 | MLS #A12010108

690 Warren Lane
Key Biscayne, FL, 33149
$5,378,000
4 Beds
3.5 Baths
3,549 SqFt
0.18 Acres
MLS #A12010108 image #0
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.
Listing Provided Courtesy of One Sotheby’s International Realty at 305-365-2811

Property Details

Price:
$5,378,000
MLS #:
A12010108
Status:
Active
Beds:
4
Baths:
3.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
BISCAYNE KEY ESTATES
Neighborhood:
2520
Listed Date:
Apr 30, 2026
Finished Sq Ft:
3,549
Total Sq Ft:
4,691
Lot Size:
348,915,600 sqft / 0.18 acres (approx)
Year Built:
2000
PoolBiscayne Key EstatesKey Biscayne K-8Ponce De LeonCoral GablesOther

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Schools

Elementary School:
Key Biscayne K-8
Middle School:
Ponce De Leon
High School:
Coral Gables

Interior

Appliances
Dishwasher, Disposal, Dryer, Gas Range, Ice Maker, Microwave, Oven, Refrigerator, Trash Compactor, Washer
Bathrooms
3 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Marble, Wood, Other
Heating
Central
Interior Features
Built-in Features, Closet Cabinetry, High Ceilings, Kitchen Island, Walk-In Closet(s)
Levels
Two

Exterior

Association Amenities
Beach Club Available
Construction Materials
CBS
Covered Spaces
2
Direction Faces
East
Exterior Features
Balcony
Fencing
Fenced
Garage Spaces
2
Parking Features
Driveway
Roof
Aluminum, Flat, Tile
Security Features
Fire Sprinkler System, Smoke Detector(s)
View
Other
Window Features
Blinds

Financial

Tax Year
2025
Taxes
$19,950

Map

Community

Market Summary

Current real estate data for Single Family in Key Biscayne as of Nov 03, 2026
41
Single Family Listed
149
Avg DOM
2,613
Avg $ / SqFt
$14,294,537
Avg List Price

Property Summary

    Located in the BISCAYNE KEY ESTATES subdivision, 690 Warren Lane Key Biscayne FL is a Single Family for sale in Key Biscayne, FL, 33149. It is listed for $5,378,000 and features 4 beds, 4 baths, and has approximately 3,549 square feet of living space, and was originally constructed in 2000. The current price per square foot is $1,515. The average price per square foot for Single Family listings in Key Biscayne is $2,613. The average listing price for Single Family in Key Biscayne is $14,294,537.

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