About This Home

This 4-bedroom, 4-bathroom single family at 690 Warren Ln in Key Biscayne, FL is listed for $5,478,000 ($1,544 per sqft). Built in 2000, the home offers 3,549 sqft of living space on a 0.18 acres lot.

Key Features

  • Built in 2000
  • 0.18 acre lot
  • 2 stories
  • Private pool

Property Details

2 stories
3 full, 1 half
2000

Amenities

PoolHardwoodA/C
Listing 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 Ll

oyd Wright and the expressive forms of Antoni Gaudi, 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.

Monthly Cost Estimate

$29,297/mo

20% down · 6.5% · 30 years

Principal$3,962
Interest$23,738
Insurance$1,598

Estimates only. Actual payments may vary.

Location

690 Warren Ln

Key Biscayne, FL 33149

BISCAYNE KEY ESTATES

Features & Amenities

Interior Features

BidetBuilt-in FeaturesCloset CabinetryDining AreaSeparate/Formal Dining RoomDual SinksHigh CeilingsKitchen IslandSeparate ShowerUpper Level PrimaryWalk-In Closet(s)

Exterior Features

BalconyFenceSecurity/High Impact Doors

Property Details

Flooring

MarbleHardwoodWood

Construction

Block

Pool Features

Pool

Parking

Driveway

Heating

Central

Cooling

Central Air

Appliances

Built-In OvenDryerDishwasherDisposalGas RangeIce MakerMicrowaveRefrigeratorTrash CompactorWine CoolerWasher

Questions & Answers

This 4-bedroom, 4-bathroom single family at 690 Warren Ln is listed at $5,478,000 ($1,544/sqft). The estimated monthly payment is $29,298 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 2000, 0.18 acre lot, 2 stories, Private pool. Interior Features: Bidet, Built-in Features, Closet Cabinetry. Exterior Features: Balcony, Fence, Security/High Impact Doors.

This property is listed by Brigitte Nachtigall and can be reached at 3057109664.

BN

Brigitte Nachtigall

License 0542022

Agent at One Sothebys International Realty

(305) 710-9664

Listed by One Sothebys International Realty · Broker phone: (305) 666-0562 · View on Broker Site

MLS# A12010108· Source: Miami REALTORS®· 114 days on PropertySimple

Copyright © 2026 Miami REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

690 Warren Ln, Key Biscayne, FL 33149

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