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7 Beds
8 Baths
6,497 sqft

$19,450,000

550 Harbor Dr, Key Biscayne FL, 33149

Price per sqft$2,993.69
Built in2003
Property size6,497 sqft
Property typeResidential

Overview

Under contract

Active With Contract

Listed Nov 11, 2025

Updated 4 weeks ago

Situated on the exclusive island of Key Biscayne, this extraordinary 7,000sqft waterfront estate sits on a rare double lot located on Hurricane Harbor overlooking tranquil Manatee Lagoon. The property offers an unparalleled sanctuary of luxury and seclusion with features including a 4 car garage ideal for collectors, professionally landscaped yard well suited for outdoor entertaining, 7 bedrooms and 7.5 baths including live-in staff quarters. Expansive living areas flow seamlessly to large outdoor, covered porches becoming your al fresco living room for outdoor dining or relaxing and soaking in the beauty of the natural environment. As the sun hits the horizon, Sunsets light up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr notice

$129,401/mo

Est. mortgage payment based on a $19,450,000 home price.

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

Additional information

MLS® ID
A11912105

Interior Features

Bedrooms
7
Bathrooms
8
Cooling
Yes
Heating
Yes
Basement
No

Exterior Features

Lot Size
0.53 Acres

Other Property Details

Taxes
$105,472
Tax Frequency
Annually
Garage
Yes
View
Yes
Pool
Yes
Waterfront
Yes
MLS provider logo

Based on information from the Miami Association of REALTORS®. This information is for your personal, non-commercial use and may not be used for any purpose other than to identify prospective properties you may be interested in purchasing. Display of MLS data is usually deemed reliable but is NOT guaranteed accurate by the MLS.  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. Unless otherwise specified in writing, Broker/Agent has not and will not verify any information obtained from other sources. The Broker/Agent providing the information contained herein may or may not have been the Listing and/or Selling Agent. The listing broker’s offer of compensation is made only to participants of the MLS where the listing is filed. 

©2026 Miami Association of REALTORS® all rights reserved. 

Data last updated 4:25 AM UTC, 8/18/2026.

Listed by:  Three Bridges Realty, LLC, 305-345-2023

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