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550 Harbor Drive, Key Biscayne, FL 33149

New Listing
$19,450,000
Property Type: Residential Bedrooms: 7 Baths: 8 Square Footage: 7,356 Status: Active
Current Price: $19,450,000 List Date: 10/23/2026 Last Modified: 10/23/2026

Description

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 notice

Open Houses

Saturday, October 24, 4:00 pm - 6:30 am

More Information MLS# A12111835

Contract Information

Comp Sale YN: No Occupant Type: Vacant Listing Date: 2026-10-23 Status: Active Original List Price: 19450000 List Price: $19,450,000 Current Price: $19,450,000

Location and Legal

County Or Parish: Miami-Dade County Parish Name: Miami-Dade City Name: Key Biscayne Municipal Code: 24 Postal Zip: 33149 Subdivision Number: 7 Flood Zone: AE Country: United States Street Number: 550 Street Name: Harbor Street Suffix: Drive State Or Province: FL Postal Code: 33149 Postal Code +4: 1741 Subdivision Name: HURRICANE COVE Area: 2520 Elementary School: Key Biscayne K-8 Middle Or Junior School: Ponce De Leon High School: Coral Gables Parcel Number: 2452050070020 Zoning: 2000

General Property Information

Adjusted Area Main: 6428 Living Area Main: 6497 Lot Size Area: 13302 Water Frontage Feet: 130 Senior Community YN: No Outdoor Living Spaces YN: Yes Pool Private YN: Yes Property Sub Type: Single Family Residence Bedrooms Total: 7 Bathrooms Total: 8 Bathrooms Full: 7 Bathrooms Half: 1 Building Area Main: 7356 Year Built: 2003 Garage YN: 1 Attached Garage YN: 1 Garage Spaces: 4 Covered Spaces: 4 Lot Size Acres: 0.31 Waterfront YN: 1 Direction Faces: East

Financial Information

Estimated Monthly Assoc Recurring Fee: 0 Membership Fee Required YN: No Tax Annual Amount: 117717 Tax Year: 2025 Tax Legal Description: 5 & 6 55 42 .30 AC HURRICANE COVE PB 57-66 LOT 2 LOT SIZE 13302 SQ FT F/A/U 24-5205-013-0010 OR 19060-1529-1531 03/2000 1 COC 21909-0810 12

Office/Member Information

DXORIGMLSID: SEF

Amenities

Beach Club Available: 1

Flooring

Marble: 1 Other: 1

Leasing Permitted Details

Leasing Permitted YN: Yes Okay To Lease: 1

Parking Features

Driveway: 1 Garage Door Opener: 1 Golf Cart Garage: 1 Paver Block: 1 Attached: 1 Attached Garage: 1 Garage: 1

Property Condition

Resale: 1

Possession

Negotiable: 1

Sewer

Public Sewer: 1

Special Information

Sold As-Is: 1

Heating

Central: 1 Electric: 1

Water Access

Ocean Access: 1

Water View

Lagoon: 1

Appliances

Dishwasher: 1 Disposal: 1 Dryer: 1 Microwave: 1 Refrigerator: 1 Washer: 1

Construction Materials

Block: 1

Interior Features

Elevator: 1

Listing Terms

Cash: 1 Conventional: 1

Pool Features

Equipment Included: 1 In Ground: 1

Roof

Barrel: 1

Water Source

Public: 1

Waterfront Features

Canal Front: 1 Lagoon: 1 No Fixed Bridges: 1

Architectural Style

Mediterranean: 1

Boat and Dock Information

Dock: Yes

Boat and Dock Features

Private Dock: 1

Cooling

Central Air: 1 Electric: 1

Showing Requirements

24 Hour Notice: 1 Call Listing Agent: 1

Master Bedroom/Bath

Bedroom On Entry Level: 1

Membership

Other Membership Available: 1

Pets Allowed YN

Yes: 1

Pool Size Details

Pool Size (WxL): 30x15

Tax Information

Tax Reflects No Exemptions: 1

Outdoor Living Spaces

Balcony: 1 Porch: 1

Balcony Details

Balcony - Open: 1

Porch Details

Porch - Open: 1

Room Types

Maid/In-Law Quarters: 1

Price Calculations

Current Price To SqFt: 2993.68

Section Details

Parcel Number MLX: 0020

Acreage Description

1/2 To Less Than 1 Acre Lot: 1

Status Change Information

Major Change Timestamp: 2026-10-23T04:00:00Z Major Change Type: New Listing Status Change Date: 2026-10-23

Originating Details

Originating System Key: 568196082 Originating System ID: M00000151

Property Features

Flooring: Marble; Other Leasing Permitted Details: Okay To Lease Parking Features: Driveway; Garage Door Opener; Golf Cart Garage; Paver Block; Attached; Attached Garage; Garage Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Microwave; Refrigerator; Washer Architectural Style: Mediterranean Boat and Dock Features: Private Dock Construction Materials: Block Cooling: Central Air; Electric Heating: Central; Electric Interior Features: Elevator Listing Terms: Cash; Conventional Membership: Other Membership Available Pets Allowed YN: Yes Pool Features: Equipment Included; In Ground Possession: Negotiable Roof: Barrel Sewer: Public Sewer Special Information: Sold As-Is Tax Information: Tax Reflects No Exemptions Water Access: Ocean Access Water Source: Public Water View: Lagoon Waterfront Features: Canal Front; Lagoon; No Fixed Bridges Showing Requirements: 24 Hour Notice; Call Listing Agent Outdoor Living Spaces: Balcony; Porch Balcony Details: Balcony - Open Porch Details: Porch - Open Room Types: Maid/In-Law Quarters Acreage Description: 1/2 To Less Than 1 Acre Lot

Room Information

Maid/In-Law Quarters
Listing Office: Three Bridges Realty, LLC
Last Updated: October - 23 - 2026
550 Harbor Drive, Key Biscayne, FL 33149- MLS# A12111835
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