
690 Warren Ln, Key Biscayne, FL 33149
Key Biscayne, FL 33149 · BISCAYNE KEY ESTATES
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 home | Key Biscayne median (12 mo) | |
|---|---|---|
| Price per sq. ft. | $1,544 | $976 |
| 4-bedroom price | $5,478,000 | $3,450,000 |
| Days on market | 137 | 61 |
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
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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.