MIAMI LUXHomes

690 Warren Ln, Key Biscayne, FL 33149

$5,478,0004 Beds4 Baths3,549 Sq. Ft.$1,544 / sq. ft.

Key Biscayne, FL 33149 · BISCAYNE KEY ESTATES

Status
Active
Type
Single Family Residence
Year Built
2000
Days on Market
137
Lot Size
8,010 sqft
MLS #
A12010108
County
Miami-Dade County

About 690 Warren Ln, Key Biscayne, FL 33149

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.

How This Listing Compares in Key Biscayne

Per square foot, it is asking 58% above the Key Biscayne median for sales closed over the last twelve months — typical of premium views, newer construction or a top-tier building.

This homeKey Biscayne median (12 mo)
Price per sq. ft.$1,544$976
4-bedroom price$5,478,000$3,450,000
Days on market13761

Medians from closed MLS sales in Key Biscayne; a starting point, not an appraisal.

Home Features at 690 Warren Ln, Key Biscayne, FL 33149

Bathrooms Full
3
Bathrooms Half
1
Interior Features
Built-in Features, Closet Cabinetry, Cooking Island, Fire Sprinklers, Volume Ceilings, Walk-In Closet(s), Den/Library/Office, Utility Room/Laundry
Appliances
Dishwasher, Disposal, Dryer, Gas Range, Ice Maker, Microwave, Refrigerator, Trash Compactor, Wall Oven, Washer
Flooring
Marble, Other, Wood
Heating
Central
Cooling
Central Air
Architectural Style
Attached, Two Story
Garage Spaces
2
Parking Features
Driveway
Pool Features
In Ground
Pool Private
No
Year Built Details
Effective Year Built
Direction Faces
East

The Building at 690 Warren Ln, Key Biscayne, FL 33149

Building Name
BISCAYNE KEY ESTATES
Building Area Total
4691
Building Area Units
Square Feet
Association
No
Security Features
Fire Sprinklers, Smoke Detector

Lot, Views & Construction at 690 Warren Ln, Key Biscayne, FL 33149

Lot Features
Less Than 1/4 Acre Lot
Lot Size Square Feet
8,010
Waterfront
No
View
Other
Construction Materials
CBS Construction
Roof
Aluminum, Flat Tile
Exterior Features
Open Balcony
Sewer
Public Sewer
Water Source
Municipal Water
New Construction
No

Taxes & Public Record for 690 Warren Ln, Key Biscayne, FL 33149

Parcel Number
24-52-05-001-0790
Tax Annual Amount
$19,950
Tax Year
2,025
Tax Legal Description
5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 7 BLK 7 LOT SIZE 80.100 X 100 OR 18087-3577 0498 1
Zoning
0100
County Or Parish
Miami-Dade County

Assigned Schools for 690 Warren Ln, Key Biscayne, FL 33149

Elementary School
Keybiscayne
Middle School
Ponce De Leon
High School
Coral Gables

School assignments are provided by the listing and should be independently verified.

Map & Neighborhood

690 Warren Ln, Key Biscayne, FL 33149 · More homes in Key Biscayne

Courtesy of One Sotheby's International Realty

Comparable Listings in Key Biscayne

690 Warren Ln, Key Biscayne, FL 33149 at a Glance

Offered for sale in Key Biscayne 33149, 690 Warren Ln is a single family home with 4 bedrooms, 4 bathrooms, about 3,549 square feet of living space, dating to 2000. The asking price is $5,478,000, on the market since April 30, 2026, with One Sotheby's International Realty as the listing brokerage. Students here are assigned to Keybiscayne, Ponce De Leon and Coral Gables. Ask Matthew Gromadzki for a private showing, the full disclosure package, or comparable sales before you make an offer.