550 Harbor Dr, Key Biscayne FL 33149, photo 1
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$20,450,000

Single Family ResidenceActive
⏱️ Listed 216 days ago (~7 months)⬇️ Price reduced $1,500,000 (7%) on May 16, 2026
7Beds
8Baths
6,497Sq Ft
2003Built

550 Harbor Dr, Key Biscayne FL 33149

MLS #A11912105

About This Property

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 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

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Marie I. Sanjurjo
Licensed Broker
Blue Mar Real Estate Group
📞 (305) 680-5672💬 WhatsApp Marie✉️ [email protected]

About Key Biscayne

Key Biscayne is a barrier island community just a bridge ride from Brickell, offering an island lifestyle wrapped around Crandon Park, Cape Florida State Park, and the Crandon Golf Course. The village is known for its safety, top-rated schools, and walkable pace, with residents ranging from young families to international buyers seeking secondary residences. Limited inventory and tight geography keep prices premium relative to mainland Miami.

Explore Key Biscayne📊 Key Biscayne market report

Property Details

Property Type

Single Family Residence

Year Built

2003

Living Area

6,497 sq ft

Lot Size

22,975 sq ft

Bedrooms

7

Bathrooms

8

Garage

4 Spaces

Pool

No

Waterfront

Yes

Cooling

Central Air, Electric

Heating

Central, Electric

Roof Type

Barrel Roof

Flooring

Carpet, Marble

Construction

Elevated Construction

Style

Attached, Two Story

HOA Fee

None

Annual Taxes

$105,472 (2024)

Days on Market

215

MLS #

A11912105

Features & Amenities

Interior

Built-in FeaturesElevatorMaid/In-Law QuartersOther

Appliances

DishwasherDisposalDryerElectric Water HeaterMicrowaveElectric RangeRefrigeratorWasher

Exterior

Open Balcony

Community

Beach Club Member AvailableBoatingTennis Court(s)Pickleball

Other

Ocean AccessLagoonNavigable WaterNo Fixed BridgesAdditional Spaces AvailableDrivewayPaver Block

Nearby Schools

Assigned public schools pulled from Miami-Dade County Public Schools’s official attendance-boundary data. Verify current boundaries with MDCPS before buying — zones can change year to year.

Assigned Public Schools
Elementary
Key Biscayne K-8 Center
Grades PK-8
150 W McIntire St., Key Biscayne 33149
Middle
Ponce de Leon MS
Grades 6-8
5801 Augusto St., Coral Gables 33146
High
Coral Gables Senior High
Grades 9-12
450 Bird Rd., Coral Gables 33146
Private Schools Within 5 Miles
Key Biscayne Presbyterian School0.7 mi
160 Harbor Dr, Key Biscayne
St Agnes Academy0.8 mi
122 Harbor Dr, Key Biscayne
St Christophers - By-The-Sea Montessori School0.8 mi
95 Harbor Dr, Key Biscayne
Immaculata-La Salle High School4.3 mi
3601 S Miami Ave, Miami
Ransom Everglades Middle School4.7 mi
2045 S Bayshore Dr, Miami
La Prima Casa Montessori - Brickell Campus4.8 mi
1770 Brickell Ave, Miami
Gordon Schools of Beth David Congregation4.9 mi
2625 SW 3rd Ave, Miami
Cherry Blossom Learning Center4.9 mi
2933 SW 3rd Ave, Miami

School data source: Miami-Dade County Open Data Hub

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Location

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City

Key Biscayne

State

FL

ZIP Code

33149

County

Miami-Dade County

$20,450,000
550 Harbor Dr, Key Biscayne FL 33149
7Beds
8Baths
6,497Sq Ft
📞 (305) 680-5672💬 WhatsApp
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550 Harbor Dr, Key Biscayne FL 33149$20,450,000

Listing provided by William Earle at Three Bridges Realty, LLC. Data from Miami Association of REALTORS®. All information deemed reliable but not guaranteed. Listing #A11912105.