690 Warren Ln

Key Biscayne, FL
$ 5,478,000 Beds 4 Baths 3.5 Sq 3,549 Virtual Tour
Monthly Estimate* How much can I afford?

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.

Active

  • Price
  • $ 5,478,000
  • City
  • Key Biscayne
  • Bedrooms
  • 4
  • Full Bathrooms
  • 3
  • County
  • Miami-Dade
  • Half Bathrooms
  • 1
  • Area
  • 52
  • Lot Size
  • Zip
  • 33149
  • Sqr Footage
  • 3,549
  • Year Built
  • 2000
  • Taxes
  • $ 19950
  • Style
  • MLS#
  • A12010108
Listed By: This listing is courtesy of One Sotheby's International Realty
Data Source: Southeast Florida MLS (SEFMLS)

Features

General

Sewer Public Sewer
Heating Central
Cooling Central Air
Possession Closing & Funding,Close Of Escrow
Roof Aluminum,Flat,Tile
Appliances Built-In Oven,Dryer,Dishwasher,Disposal,Gas Range,Ice Maker,Microwave,Refrigerator,Trash Compactor,Wine Cooler,Washer
Garage Spaces 2
Patio/Porch Features Balcony,Open
Architectural Style Two Story
Pool Features In Ground,Pool
Security Features Fire Sprinkler System,Smoke Detector(s)
Restrictions Other Restrictions
Construction Materials Block
Year Built 2000
View Other
Stories Count 2
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Community Features Beach,Club Membership Available
County Miami-Dade
Property Type Residential
Subdivision Name BISCAYNE KEY ESTATES
Facing Direction East
Garage Y/N true
Full Baths 3
Special Listing Conditions Listed As-Is
Status Active
High School Coral Gables
City Key Biscayne
Senior Community Y/N false
Zoning Description 0100
MLS Area 52
Lot Size Units Square Feet
Lot Size Square Feet 8010
Listing Terms Cash,Conventional
Elementary School Keybiscayne
Year Built Details Effective Year Built
Tax Annual Amount 19950
Middle/Junior High School Ponce De Leon
Lease Considered Y/N false
Virtual Tour https://vimeo.com/1226691966?share=copy&fl=sv&fe=ci
Standard Status Active
Occupancy Type Call Agent
Property Sub Type Additional Single Family Residence
PostalCity Key Biscayne
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
AttributionContact MLS@onesothebysrealty.com

Interior Features

Interior Amenities Bidet,Built-in Features,Closet Cabinetry,Dining Area,Separate/Formal Dining Room,Dual Sinks,High Ceilings,Kitchen Island,Separate Shower,Upper Level Primary,Walk-In Closet(s)
Flooring Hardwood,Marble,Other,Wood
Air Conditioning Y/N true
Heating Y/N true
Window Features Blinds,Impact Glass
Half Baths 1
Total Bedrooms 4
Total Baths 4

Exterior Features

Exterior Amenities Balcony,Fence,Security/High Impact Doors
Parking Features Driveway
Lot Features < 1/4 Acre
Water Source Public
Lot Size Area 8010
Building Area Total 4691
Private Pool true
Waterfront Y/N false
Covered Spaces 2

Amenities

  • Foreclosure
  • Views
  • Short Sale
  • New Construction
  • Adult 55+
  • Lease To Own
  • No HOA Fees
  • Furnished
  • Primary On Main
  • Air Conditioning
  • Seller Finance
  • Green
  • Fixer Upper
  • Horse
  • Golf
  • Fireplace
  • Deck
  • Garage
  • Basement
  • Pool

Affordability Calculator

$3,786

Per Month

Based on the average sale price from the Miami Beach, FL office

  • Monthly Principal & interest $2,658
  • Monthly Property Taxes $1,062
  • Monthly Home Insurance $67
Adjust Payment Options
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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA, or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

Schools

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

Price History

4/30/2026 Listed $5,478,000

Property vs Zip Code Average in 33149

Price
AVG $9.24M
$5.48M
Taxes
AVG $76,969
$19,950
Year Built
AVG 1986
2000

In The Neighborhood

Areas That We Cover

690 Warren Ln Key Biscayne, FL is a Single Family Home for sale at $5478000 with 3549 sqft and a lot size of Acre(s). 690 Warren Ln Key Biscayne has 4 bedrooms, 3 baths and was built in 2000. The property's zip code is 33149 which is in Key Biscayne, FL

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

All information deemed reliable, but not guaranteed, and should be independently verified. The real estate information and related content displayed on this site is provided for consumers personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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Joel Arguello

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