Property photo 1
Property photo 2
Property photo 3
Property photo 4
Property photo 5
7 Beds
8 Baths
6,497 sqft

$19,450,000

550 Harbor Drive, Key Biscayne FL, 33149

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

Overview

Under contract

Active Under Contract

Listed Nov 11, 2025

Updated 2 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
55+/Senior Community
No

Listed with Three Bridges Realty, LLC

All listings featuring the BMLS logo are provided by Association of Palm Beaches. This information is not verified for authenticity or accuracy and is not guaranteed. IDX information is provided exclusively for consumers’ personal, non-commercial use, that it may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing, and that the data is deemed reliable but is not guaranteed accurate by MLS.

©2026 Association of Palm Beaches. All rights reserved. 

Data last updated 7:28 PM UTC, 8/31/2026

 

Powered by Luxury Presence