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+60 photosWaterfront home — 550 Harbor Drive · Hurricane Cove · Key Biscayne
South Florida Luxury Living
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Open property magazine$19,450,000
550 Harbor Drive, Key Biscayne, FL 33149
Key Biscayne, FL, 33149
7 bd · 8 ba · 6,497 sqft
Listed by Three Bridges Realty, LLC
550 Harbor Drive, Key Biscayne, FL 33149
Listed by Three Bridges Realty, LLC
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Pick up to 6 homes. Simon confirms times with each listing agent, then sends you the final schedule.
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Estimated monthly payment
$124,324/mo
Know your costs before you buy
Work through three numbers: your estimated monthly payment, the cash needed at closing, and insurance & flood.
Estimated monthly payment $124,324/mo · principal, interest, taxes, insurance and HOA. Verify before you buy.
Cash to close includes the down payment, lender and title costs, taxes, insurance prepayments and escrow deposits. Editable estimate only.
Insurance and flood: AE · verify insurance quotes before buying.
About this home
Find similar homesEnjoy 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
Property Details
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Your costs (est.)
≈ $124,324/mo
550 Harbor Drive, Key Biscayne, FL 33149 · Key Biscayne
Location
550 Harbor Drive, Key Biscayne, FL 33149
Dock & Draft Match™
Ask about dock
Boat length up to ~73 ft · verify
One home, every check
Dock & Draft Match™ brings this home's dock length, low-water depth, every bridge, the ocean run, frontage and yacht size together in one place. Estimate only, not guaranteed. Verify before you buy or sell.
What buyers ask about this home
What are the estimated monthly carrying costs at 550 Harbor Drive, Key Biscayne, FL 33149?+
Property tax (after sale): $20,954/month est.; homeowners insurance: $2,448/month est.; HOA: $0/month. Fixed ownership costs before a mortgage: $23,402/month est. Principal and interest: $100,922/month; PMI: $0/month. Total for the payment scenario shown: $124,324/month est. Flood insurance is not included. Estimate only, not guaranteed. Verify before you buy or sell.
Will property taxes go up after I buy 550 Harbor Drive, Key Biscayne, FL 33149?+
Usually yes. In Florida the assessed value resets to market value in the year after a sale, so the seller's current tax bill is rarely what a new owner pays. Budget roughly 1.8–2.0% of the purchase price annually until you file for homestead exemption and the Save Our Homes cap (or the 10% non-homestead cap) starts limiting increases.
Does 550 Harbor Drive, Key Biscayne, FL 33149 need flood insurance, and what drives the premium?+
Most of Key Biscayne sits in a FEMA flood zone, and lenders require flood coverage in high-risk zones. Premiums are driven by elevation certificate, flood zone, roof age and shape, and whether the home has impact windows or accordion shutters. Ask for the current declarations page, the four-point inspection and wind mitigation report early — they set your real cost of ownership.
What should an inspection focus on for a home like 550 Harbor Drive, Key Biscayne, FL 33149?+
In coastal South Florida, prioritize roof age and permit history, whether windows and doors are impact-rated, the seawall and dock condition on waterfront lots, drainage and elevation, plumbing type, and any open or expired permits with the city. These items, not cosmetics, drive both price and insurability.
What extra costs come with the waterfront at 550 Harbor Drive, Key Biscayne, FL 33149?+
Waterfront ownership adds seawall maintenance and eventual replacement, dock and lift servicing, higher flood and wind premiums, and salt-air upkeep on exterior finishes and equipment. Confirm bridge height and water depth at low tide if you plan to keep a boat.
Is there room to negotiate on 550 Harbor Drive, Key Biscayne, FL 33149?+
This listing has been on the market 21 days. Leverage comes from days on market, price history, comparable closed sales and the seller's motivation — not from a fixed percentage. I pull the full history and the true comps before we write, so the offer is built on what the property is actually worth today. Call or text (954) 562-1798 for that analysis.
Neighborhood & Commute
Located in Key Biscayne, this property offers the South Florida lifestyle — warm-weather living year-round with easy access to the Atlantic coast, A-rated schools, and major business centers.
Approximate Drive Times
Drive times are estimates based on straight-line distance at typical South Florida traffic speeds. Actual times vary with traffic and routing.
Assigned schools for this address
Ponce de Leon Middle
Middle school
Coral Gables Senior High
High school
Zone boundaries published by Miami-Dade County Public Schools.
Other options for this address
Key Biscayne Presbyterian School
Elementary · Private · Christian · Grades PK–K · Key Biscayne
School assignment is set by the district and can change. Always confirm the zoned school with the district before you buy.
The home, in a magazine
A closer look at this home and its lifestyle — dedicated to you and your family.
Open the magazine
Simon Gedz
Realtor® since 1995
Interested in this property?
$19,450,000 · MLS A12111835
$19,450,000
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