Premier Brokers International
690 Warren Lane, Key Biscayne, FL 33149
ActiveMLS listing sourceMIAMI REALTORS® MLS
ActiveMLS® A12010108
$5,478,000

690 Warren Lane, Key Biscayne, FL 33149

Beds
4
Baths
4
Sqft
3,549
Est. payment$32,826/mo
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

Automated estimate—No licensed valuation source connected
Estimated sales range—Ask Karim for a local market analysis
Estimated rent—No licensed rental valuation source connected

Price history

DateEventPrice
Apr 30, 2026ListedMIAMI REALTORS® MLS$5,478,000$1,544/sqft

Public tax history

YearProperty taxesAssessment
2025$19,950—

Payment calculator

Estimated monthly payment$32,826/moIllustrative estimate, not a loan offer.
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 ESTATES

Key Biscayne · Miami-Dade County · 33149

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Key Biscayne K-8Elementary
—
Ponce De LeonMiddle
—
Coral GablesHigh
—
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

Nearby homes

12 homes

Similar homes

12 homes
MLS listing source

MIAMI REALTORS® MLS · Listing courtesy of One Sotheby's International Realty. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers’ personal, non-commercial use and may be used only to identify prospective properties they may be interested in purchasing or leasing. Terms of use · Equal Housing Opportunity.