Mansion
$19,800,000
100 Cape Florida Dr, Key Biscayne FL 33149 – Residential
Cape Florida Dr
- 4 beds
- 7 baths
- 8,240 sqft
5
Beds
5.5
Baths
5,421
SQUARE FEET
Single Family Residence
Type
2001
Built
Listing courtesy of
Avanti Way Realty LLC
Marisela Gonzalez Servat
MLS® #A11997896
Listing information last updated May 6, 2026
MiamiCityRealty.com is an agent's best friend. We proudly co-broke and partner with Avanti Way Realty LLC — and every agent and broker in Miami — to get the deal done.
Overview
This single family residence in Key Biscayne has 5 bedrooms and 5.5 bathrooms across 5,421 square feet, and is listed for sale at $6,950,000 (about $1,282 per square foot). Built in 2001.
Timeless colonial-style residence, also known as Villa Rosa, set on a rare 12,200 sqft lot in the heart of Key Biscayne. Designed by renowned architect Cesar Molina, this 5-bedroom home is located on a very quiet, low-traffic street, offering privacy within a well-established, comfortable neighborhood.
The home features double balconies, bright interiors, and a functional indoor-outdoor layout with expansive covered terraces. The kitchen includes an island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite offers a private terrace, oversized walk-in closet with safe, and dual bathrooms with sauna.
The spacious backyard includes a pool and generous green space. Additional features include maid’s quarters and construction that meets hurricane code requirements. Ideally located near beaches, parks, and top-rated schools, this is a rare opportunity to own a well-designed home on one of Key Biscayne’s most desirable streets.
Listing history
Listed for sale
Apr 16, 2026 · MIAMI MLS
$6,950,000
Days on market
as of today
96 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 (2025)
$40,335
Association type
None
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 #A11997896
Price$6,950,000
Size5,421 Square Feet
Bedrooms5
Bathrooms5.5
Garage1
Year built2001
TypeSingle Family Residence
StatusFor Sale
Price / Square Feet$1,282
Flood zoneAE
Features & amenities
Bar
Closet Cabinetry
Cooking Island
Dishwasher
Disposal
Dryer
Electric Water Heater
Entrance Foyer
Family Room
First Floor Entry
Garage Attached
Gas Range
Great Room
Has a View
Has Cooling System
Has Garage
Has Heating System
Ice Maker
Lighting
Open Balcony
Open Parking
Refrigerator
Storage
Walk-In Closet(s)
Location
685 Harbor Ln, Key Biscayne FL 33149
Estimate your payment
$
Est. monthly payment
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Property tax (est.)—
Down (20%)—
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List your rental →Listing data © MIAMI MLS · IDX information deemed reliable but not guaranteed · 96 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.