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5 Beds
6 Baths
5,421 sqft

$6,950,000

685 Harbor Ln, Key Biscayne FL, 33149

Price per sqft$1,282.05
Built in2001
Property size5,421 sqft
Property typeResidential

Overview

Active

Listed Apr 16, 2026

Updated 3 weeks ago

Timeless colonial-style residence, also known as Villa Rosa, set on a rare 12,200 sqft lot in the heart of Key Biscayne. Designed by renowned architect Cesar Molina, this 5-bedroom home is located on a very quiet, low-traffic street, offering privacy within a well-established, family-friendly neighborhood. The home features double balconies, bright interiors, and a functional indoor-outdoor layout with expansive covered terraces. The kitchen includes an island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite offers a private terrace, oversized walk-in closet with safe, and dual bathrooms with sauna. The spacious backyard includes a pool and generous green space. Additional features include maid’s quarters and construction that meets hurricane code requirements. Ideally located near beaches, parks, and top-rated schools, this is a rare opportunity to own a well-designed home on one of Key Biscayne’s most desirable streets.

$46,239/mo

Est. mortgage payment based on a $6,950,000 home price.

All estimates are provided by Luxury Presence for informational purposes only. Actual amounts may vary.

Additional information

MLS® ID
A11997896

Interior Features

Bedrooms
5
Bathrooms
6

Exterior Features

Lot Size
0.21 Acres

Other Property Details

Taxes
$40,335
Tax Frequency
Annually

Broker Reciprocity Courtesy of Avanti Way Realty LLC

 

Data last updated:9/14/2026.

 

The multiple listing information is provided by FL - Miami Association of REALTORS® (RAMB) from a copyrighted compilation of listings. The compilation of listings and each individual are ©2026FL - Miami Association of REALTORS® (RAMB). All Rights Reserved.

 

The information provided is for consumer's personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified.

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