
MIAMI REALTORS® MLS690 Warren Lane, Key Biscayne, FL 33149
- Beds
- 4
- Baths
- 4
- Sqft
- 3,549
- Home type
- Single Family Residence
- Year built
- 2000
- Lot size
- 7,841 sqft
- Price / sqft
- $1,544
- HOA
- $0/mo
- Community
- BISCAYNE KEY ESTATES
Property description
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 activity
- Days on market
- 137
- Listed
- Apr 30, 2026
- MLS listing updated
- Sep 14, 2026
- Feed last checked
- 6 minutes ago
Listed by Brigitte Nachtigall · One Sotheby's International Realty
Map
Map location is based on MLS-supplied coordinates. Verify the location before relying on it.
Facts & features
Interior
Bedrooms & bathrooms
- Bedrooms
- 4
- Bathrooms
- 4
- Bathrooms (decimal)
- 3.5
- Full bathrooms
- 3
- Half bathrooms
- 1
Rooms & features
- Rooms
- 2
- Interior features
- Built-in Features, Closet Cabinetry, High Ceilings, Kitchen Island, Walk-In Closet(s)
- Flooring
- Marble, Wood, Other
- Appliances
- Dishwasher, Disposal, Dryer, Gas Range, Ice Maker, Microwave, Oven, Refrigerator, Trash Compactor, Washer
- Window features
- Blinds
Heating & cooling
- Heating
- Central
- Cooling
- Central Air
Property
Parking
- Garage spaces
- 2
- Garage
- Yes
- Covered spaces
- 2
- Parking features
- Driveway
- Attached garage
- No
Exterior
- Stories
- 2
- Building area
- 4,691 sqft
- Exterior features
- Balcony
- Fencing
- Fenced
- Pool
- Yes
- Pool features
- In Ground
- View
- Other
- Waterfront property
- No
Lot
- Lot size
- 7,841 sqft
- Lot size (acres)
- 0.18 acres
- Zoning
- 0100
Construction
Type & style
- Home type
- Single Family Residence
- Year built
- 2000
Materials
- Construction
- CBS
- Roof
- Aluminum, Flat, Tile
- Levels
- Two
- Faces
- East
Utilities & green energy
Utilities
- Sewer
- Public Sewer
- Water
- Public
Community & HOA
Community
- Subdivision
- BISCAYNE KEY ESTATES
- MLS area
- 2520
- Security
- Fire Sprinkler System, Smoke Detector(s)
- 55+ community
- No
Association
- Has association
- No
- Estimated monthly dues
- $0
- Amenities
- Beach Club Available
Lease details
Not reported by the listing source.
Location
Area details
- City
- Key Biscayne
- County
- Miami-Dade
- ZIP code
- 33149
Manufactured home details
Not reported by the listing source.
Financial & listing details
Listing
- MLS number
- A12010108
- Possession
- Close Of Escrow, Negotiable
- Original list price
- $5,478,000
- Parcel number
- 2452050010790
- Annual property tax
- $19,950
- Tax year
- 2025
- 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
Additional MLS details
Reported by the listing source
- Association Amenities
- Beach Club Available
- Association
- No
- Bathrooms Total Decimal
- 3.5
- Bathrooms Total Integer
- 4
- Building Area Total
- 4691
- Construction Materials
- CBS
- County Or Parish
- Miami-Dade
- Days On Market
- 137
- Direction Faces
- East
- Elementary School
- Key Biscayne K-8
- High School
- Coral Gables
- List Price
- 5478000
- Living Area
- 3549
- Lot Size Acres
- 0.18
- Lot Size Area
- 8010
- MLSArea Major
- 2520
- Middle Or Junior School
- Ponce De Leon
- Mls Status
- Active
- On Market Date
- 2026-04-30
- Postal Code
- 33149
- Property Sub Type
- Single Family Residence
- Property Type
- Residential
- Rooms Total
- 2
- Security Features
- Fire Sprinkler System, Smoke Detector(s)
- Senior Community
- No
- Standard Status
- Active
- State Or Province
- FL
- Status Change Timestamp
- 2026-04-30T04:00:00Z
- Stories Total
- 2
- Subdivision Name
- BISCAYNE KEY ESTATES
- Water Source
- Public
- Tax Annual Amount
- 19950
- Bathrooms Full
- 3
- Pool Private
- Yes
- Bedrooms Total
- 4
- Waterfront
- No
- Bathrooms Half
- 1
Market value
Price history
| Date | Event | Price |
|---|---|---|
| Apr 30, 2026 | ListedMIAMI REALTORS® MLS | $5,478,000$1,544/sqft |
Public tax history
| Year | Property taxes | Assessment |
|---|---|---|
| 2025 | $19,950 | — |
Payment calculator
- Principal & interest
- $28,424
- Property taxes
- $1,663
- Insurance
- $2,739
- Association dues
- $0
Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.
Neighborhood
Area
BISCAYNE KEY ESTATESKey Biscayne · Miami-Dade County · 33149
Climate risk
—No licensed climate-risk source is connected.
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