How much is 550 Harbor Drive?

550 Harbor Drive is listed at $19,450,000, which is about $2,994 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.

What are the property taxes on 550 Harbor Drive?

The listing reports annual property taxes of $117,717 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.

When was 550 Harbor Drive built?

550 Harbor Drive was built in 2003 and the listing describes its condition as resale. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.

How long has 550 Harbor Drive been on the market?

550 Harbor Drive has been listed for 16 days. Days on market and price changes are the first signals of how much room there is to negotiate.

Is 550 Harbor Drive waterfront?

Yes. The listing describes the water as ocean access canal front lagoon no fixed bridges. For a home with dockage, confirm the water depth at low tide, the seawall condition and whether the route to the inlet passes under any fixed bridges before you offer.

Which schools serve 550 Harbor Drive?

The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.

How do I see 550 Harbor Drive?

Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.

550 Harbor Drive, Key Biscayne, FL 33149

$19,450,000 · Active

7 beds
7.5 baths
6,497 sq ft
16 days on market
Single Family Residence
Built 2003
Lot 23,086.8 sq ft
7,356 sq ft total
4 garage spaces
Miami-Dade County
MLS# A12111835
Hurricane Cove

Photo 1 at 550 Harbor Drive, Key Biscayne

Photo 2 at 550 Harbor Drive, Key Biscayne

Photo 3 at 550 Harbor Drive, Key Biscayne

About this home

Enjoy Paradise Found 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 dolphins and manatees swim in your backyard. As the sun hits the horizon, the afterset lights up the sky illuminating the clouds in a breathtaking array of tropical colors. Text listing agent. 24hr noticeThis offering is a double lot sale of 550&570 Harbor

Features

Elevator
Balcony
Ocean Access
Canal Front
Lagoon
No Fixed Bridges
In Ground
Equipment Included

Schools

Elementary: Key Biscayne K-8
Middle: Ponce De Leon
High: Coral Gables

Presented by

BreakThru Realty · (786) 914-1017

Courtesy of

Three Bridges Realty, LLC · threebridgesrealty@gmail.com · Listing agent: William D. Earle

All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright © 2026 BeachesMLS, Inc. IDX information is provided exclusively 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. Data is deemed reliable but is not guaranteed accurate by BeachesMLS. Listings held by brokerage firms other than BreakThru Realty carry the name of the listing broker.

Schedule a showing

Call or text BreakThru Realty at (786) 914-1017 or email sales@breakthrurealty.com to see 550 Harbor Drive.

Before You Make an Offer

Buying a waterfront home: ocean access, bridges and docks

How buying a home in South Florida works

Your Waterfront Buyer May Already Be Working With Us

BreakThru Realty works with buyers searching for waterfront homes with ocean access, no fixed bridges, deep water, private docks and Intracoastal frontage. Boaters know the vessel they need to keep behind the house, and they tell us. If you own a waterfront home, a broker can compare its frontage, dock and route to the ocean with those requirements and discuss a potential buyer match before you list.

BreakThru Realty works with hundreds of prequalified buyers searching for properties. Before you list, a broker reviews what you own, the market around it and whether an existing buyer's requirements match. If none does, you see how we would position it to reach other qualified buyers.

Find Out If We Have Your Buyer · Discuss Selling With BreakThru Realty

A potential match is a conversation, not an offer, until the buyer sees your property and makes one. No buyer is named and nothing about your property or business is shared until you decide to proceed.

Questions About 550 Harbor Drive

How much is 550 Harbor Drive?: 550 Harbor Drive is listed at $19,450,000, which is about $2,994 per square foot. The listing page shows comparable active listings and recent closed sales nearby so you can judge the asking price against what buyers have actually paid.
What are the property taxes on 550 Harbor Drive?: The listing reports annual property taxes of $117,717 for 2025. Taxes are reassessed at the sale price after a purchase, so a new owner's bill can differ from the current owner's; use the mortgage calculator on this page for an estimate.
When was 550 Harbor Drive built?: 550 Harbor Drive was built in 2003 and the listing describes its condition as resale. Age matters for insurance and financing in Florida: ask about the roof, the electrical panel and, for a condo built before the current code, the building's structural reserve study.
How long has 550 Harbor Drive been on the market?: 550 Harbor Drive has been listed for 16 days. Days on market and price changes are the first signals of how much room there is to negotiate.
Is 550 Harbor Drive waterfront?: Yes. The listing describes the water as ocean access canal front lagoon no fixed bridges. For a home with dockage, confirm the water depth at low tide, the seawall condition and whether the route to the inlet passes under any fixed bridges before you offer.
Which schools serve 550 Harbor Drive?: The MLS lists Key Biscayne K-8 (elementary), Ponce De Leon (middle), Coral Gables (high). School assignments are set by the district and can change; verify them with the school board before you rely on them.
How do I see 550 Harbor Drive?: Request a showing from this page or call BreakThru Realty and a licensed agent will arrange a private tour, in person or by video, and answer anything the listing leaves out.
To request a tour, call (786) 914-1017 or email sales@breakthrurealty.com.

Explore

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The 6 bedroom home at 960 Mariner Drive, Key Biscayne, FL 33149 is comparable and listed for sale at $19,450,000. Another comparable home, 591 N Mashta Drive, Key Biscayne, FL 33149, sold for $14,000,000 in August 2026. Key Biscayne neighborhoods include Ocean Club and Biscayne Key Estates. Nearby ZIP codes include 33131 and 33129. This property also neighbors Brickell, Coconut Grove, and Miami. Compare it with the Key Biscayne housing market report.