Mansion
$19,800,000
100 Cape Florida Dr, Key Biscayne FL 33149 – Residential
Cape Florida Dr
- 4 beds
- 7 baths
- 8,240 sqft
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Beds
7.5
Baths
6,240
SQUARE FEET
Single Family Residence
Type
2003
Built
Listing courtesy of
One Sotheby's International Realty
Brigitte Nachtigall
MLS® #A11657338
Listing information last updated May 1, 2026
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Overview
This single family residence in Key Biscayne has 7 bedrooms and 7.5 bathrooms across 6,240 square feet, and is listed for sale at $21,800,000 (about $3,494 per square foot). Built in 2003.
Welcome to an extraordinary European style waterfront estate, where luxury and elegance meet the tranquility of coastal living.This 3-story custom-built masterpiece boasts a spectacular social area with soaring high ceilings, creating an ambiance of grandeur and openness. This estate features 7 lavish bedrooms,7.5 opulent bathrooms, private office, cozy family room, extraordinary chef’s kitchen all designed with meticulous attention to detail and the finest finishes. Step into a world of breathtaking and captivating views, where every window frames the stunning panorama of the bay and the iconic Miami skyline. The outdoor living spaces invite you to enjoy serene and unforgettable sunsets. A sanctuary of sophistication and comfort with dock, garages, elevator, and an unparalleled lifestyle.
Listing history
Price reduced
↓ $1,700,000 from $23,500,000 · Mar 4, 2026 · MIAMI MLS
$21,800,000
Listed for sale
Sep 13, 2024 · MIAMI MLS
$31,900,000
Days on market
as of today
676 days
Building & financials
FROM MIAMI MLSThe carrying-cost and structural facts that close or kill a Miami deal — straight from the listing feed.
Annual property tax (2023)
$150,580
Association type
None
Waterfront
Ocean Access, Seawall
Pets
Allowed (verify restrictions)
FEMA flood zone
AE
Dues, taxes, and association data per MIAMI MLS and public records; flood zone from FEMA NFHL. Verify with the HOA, county, and your insurer during due diligence.
Property details
MLS #A11657338
Price$21,800,000
Size6,240 Square Feet
Bedrooms7
Bathrooms7.5
Garage4
Year built2003
TypeSingle Family Residence
StatusFor Sale
Price / Square Feet$3,494
Flood zoneAE
Features & amenities
Built-in Features
Closet Cabinetry
Den/Library/Office
Dishwasher
Disposal
Dryer
Electric Range
Electric Water Heater
Elevator
Entrance Foyer
Family Room
First Floor Entry
Garage Attached
Has a View
Has Cooling System
Has Garage
Has Heating System
Has Waterfront
Ice Maker
Maid/In-Law Quarters
Microwave
Open Balcony
Open Parking
Pantry
Refrigerator
Storage
Utility Room/Laundry
Vaulted Ceiling(s)
Volume Ceilings
Walk-In Closet(s)
Wall Oven
Washer
Location
230 Harbor Drive, Key Biscayne FL 33149
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List your rental →Listing data © MIAMI MLS · IDX information deemed reliable but not guaranteed · 676 days on market.
We do not advertise a “free” buyer’s agent; buyer-representation compensation is disclosed in writing. Bitcoin pricing is indicative and updates with the market — not financial, tax, or legal advice. Buyer to independently verify all measurements, assessments, and flood & insurance facts.