550 Harbor Dr
Key Biscayne, FL 33149
7 Beds
7.5 Baths
6,497 sqft (on 0.53 acres)
7 Beds
7.5 Baths
6,497 sqft
(on 0.53 acres)
Local Information
- Map ViewExplore the area around 550 Harbor Dr.
- Schools2 Preschool Schools1 Elementary School2 Middle Schools1 High School
- Shop & Eat
-- mins to
Description
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
Open House
Sunday, June 28
10:30 AM to 12:30 PM
Home Highlights
Parking
4 Car Garage
Outdoor
Porch, Patio, Pool
View
Lagoon
HOA
None
Price/Sqft
$3,148
Listed
180+ days ago
Home Details for 550 Harbor Dr
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Beds & Baths Number of Bedrooms: 7Number of Bathrooms: 8Number of Bathrooms (full): 7Number of Bathrooms (half): 1 |
Dimensions and Layout Living Area: 6497 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Electric Range, Refrigerator, WasherDishwasherDisposalDryerMicrowaveRefrigeratorWasher |
Heating & Cooling Heating: Central,ElectricHas CoolingAir Conditioning: Central Air,ElectricHas HeatingHeating Fuel: Central |
Fireplace & Spa No Spa |
Windows, Doors, Floors & Walls Flooring: Carpet, Marble |
Levels, Entrance, & Accessibility Stories: 2ElevatorFloors: Carpet, Marble |
View Has a ViewView: Lagoon |
Security Security: Smoke Detector |
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Exterior Home Features Roof: Barrel RoofPatio / Porch: Open Porch, PatioExterior: BalconyFoundation: RaisedHas a Private Pool |
Parking & Garage Number of Garage Spaces: 4Number of Covered Spaces: 4Has a GarageHas an Attached GarageHas Open ParkingParking Spaces: 4Parking: Additional Spaces Available,Driveway,Paver Block,Garage Door Opener |
Pool Pool: Equipment StaysPool |
Frontage WaterfrontWaterfront: Ocean Access, Lagoon, Navigable Water, No Fixed Bridges, WF/Pool/Ocean AccessOn Waterfront |
Water & Sewer Sewer: Public Sewer |
Farm & Range Frontage Length: 127Not Allowed to Raise Horses |
Surface & Elevation Elevation Units: Feet |
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Days on Market: 180+ |
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Year Built Year Built: 2003 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: House,Attached |
Building Building Name: Hurricane Cove |
Property Information Parcel Number: 2452050070020 |
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Price List Price: $20,450,000Price Per Sqft: $3,148 |
Status Change & Dates Possession Timing: Funding |
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MLS Status: Active |
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Direction & Address City: Key BiscayneCommunity: Hurricane Cove |
School Information Elementary School: KeybiscayneJr High / Middle School: Ponce De LeonHigh School: Coral Gables |
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Listing Agent Listing ID: A11912105 |
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Building Area Building Area: 7356 Square Feet |
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Community Features: Beach Club Member Available, Boating, Tennis Court(s), Pickleball |
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Association for this Listing: A-Miami Association of REALTORSNo HOA |
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Lot Area: 0.53 acres |
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Listing Terms: All Cash, Conventional |
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Mls Number: A11912105Water ViewWater View: Lagoon |
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Beach Club Member AvailableBoatingTennis Court(s)PickleballSource Internet Entire Listing Display |
Last check for updates: about 12 hours ago
Listing courtesy of William Earle, (305) 345-2023
Three Bridges Realty, LLC
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A11912105
Also Listed on MIAMI.
Market trends in Key Biscayne
Last updated May 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
167
2MoM
Price History for 550 Harbor Dr
| Date | Price | Event | Source |
|---|---|---|---|
| 05/16/2026 | $20,450,000 | PriceChange | MIAMI #A11912105 |
| 11/11/2025 | $21,950,000 | Listed For Sale | MIAMI #A11912105 |
| 11/30/2007 | $10,400,000 | ListingRemoved | Agent Provided |
| 11/14/2007 | $10,400,000 | Listed For Sale | Agent Provided |
| 04/07/2000 | $2,275,000 | Sold | N/A |
| 03/20/1998 | $995,000 | Sold | N/A |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $117,717 |
| Assessment | $8,433,019 |
Home facts updated by county records
Comparable Sales for 550 Harbor Dr
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.13 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.21 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.30 | Single-Family Home | $4,820,000 | 08/15/25 | 6 | 6.5 | 4,165 | |
0.46 | Single-Family Home | $6,500,000 | 03/31/26 | 7 | 7.5 | 5,528 | |
0.31 | Single-Family Home | $3,700,000 | 01/27/26 | 5 | 5 | 3,962 | |
0.16 | Single-Family Home | $3,450,000 | 07/21/25 | 4 | 3 | 3,004 | |
0.22 | Single-Family Home | $4,400,000 | 04/08/26 | 5 | 5 | 3,230 | |
0.22 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.24 | Single-Family Home | $6,350,000 | 07/31/25 | 5 | 5.5 | 3,525 | |
0.16 | Single-Family Home | $23,500,000 | 10/09/25 | 3 | 5 | 10,926 |
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Assigned Schools
These are the assigned schools for 550 Harbor Dr.
- Key Biscayne K-8 Center
- PK-8
- Public
- 803 Students
8/10GreatSchools RatingParent Rating Averagethey have nothing they lost it allParent Review9mo ago - Ponce De Leon Middle School
- 6-8
- Public
- 668 Students
6/10GreatSchools RatingParent Rating AverageMi hija estudio en Ponce de León Middle School durante 3 años, y realmente su experiencia fue muy satisfactoria. El personal administrativo, los maestros, Los principales Señor Balboa durante 1 año, y posteriormente la Sra Gonzalez durante los últimos dos años, en fin todo el staff. Nos llevamos muchas buenas experiencias de este colegio. La Sra Marlene Ramos, la coordinadora de IB marca la diferencia, nos aconsejo y acompaño durante estos años cada día, dándonos los mejores consejos y asesorías. Estamos felices de haber pertenecido a esta comunidad. Muchas graciasParent Review3w ago - Coral Gables Senior High School
- PK-12
- Public
- 2931 Students
5/10GreatSchools RatingParent Rating AverageAs a current teacher and Alumni of CGHS, this is, without a doubt, the worst school I have ever taught and studied at. The primary factor for this is the teachers, especially Diana Van-Wyk. She is the "IB Coordinator" of the school, who demonstrates clear favoritism, laziness, apathy, and sexism. As a counsellor and coordinator of such a prestige program such as the IB, I would expect her to care for her students and support them fully through their academic journey, as would most people. However, since she has joined this school years ago, I have seen a noticeable decline in student mental health, overall happiness, and communication with teachers. This is what inspired me to become a teacher, so I could be everything she isn't. Furthermore, I have received multiple student complaints about her, and her failure of communication as well as her stubbornness. I don't think she understands that the students she deals with are socially maturer than most, perhaps indicating why she refuses to admit she's wrong. It is in the best interest of the school to remove her as a faculty.Teacher Review4mo ago 
Check out schools near 550 Harbor Dr.
What Locals Say about Key Biscayne
At least 116 Trulia users voted on each feature.
94 % Say it's walkable to grocery stores
94 % Say kids play outside
90 % Say it's dog friendly
90 % Say it's walkable to restaurants
85 % Say people would walk alone at night
85 % Say there are sidewalks
79 % Say it's quiet
79 % Say there's holiday spirit
76 % Say they plan to stay for at least 5 years
68 % Say parking is easy
67 % Say streets are well-lit
60 % Say there are community events
58 % Say neighbors are friendly
54 % Say yards are well-kept
52 % Say there's wildlife
50 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
William Earle, Three Bridges Realty, LLC
Agent Phone: (305) 345-2023
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
550 Harbor Dr, Key Biscayne, FL 33149 is a 7 bedroom, 8 bathroom, 6,497 sqft single-family home built in 2003. This property is currently available for sale and was listed by MIAMI on Nov 11, 2025. The MLS # for this home is MLS# A11912105.