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Slice RealtyPropiedad Futura

$19,800,000

4 bd · 9 ba · 8,240 sq ft · Single Family Residence

100 Cape Florida Dr, Key Biscayne FL 33149

For Sale · Active listing

Est. payment $108,810/mo · Mortgage calculator

Listed by One Sotheby's International Realty / Lucia Marin

Contact: 786-325-6800 (listing contact).

Shown through Slice Realty. Requests from this page reach Slice Realty / Propiedad Futura, not the listing agent.

About this home

Enjoying an exceptional 270ft of L-shaped water frontage facing 185-ft-wide Pines Canal and the natural beauty of Bill Baggs Cape Florida State Park, this elegant island-coastal estate is tailored to a boating lifestyle. Offering calm and naturally sheltered harbor, concrete seawall, boat lift, dockside kitchen and side-dock boat storage that preserves unobstructed water views, the property provides a sense of openness, privacy, and tranquility. Clean architectural lines, an internal garden courtyard, and generous covered terraces fill the residence with natural light and create a seamless connection to the surrounding water and landscape. This elevated home offers 4 bedrooms plus staff quarters, 5 bathrooms, and 4 half-baths within 8,240 sqft of living space on a 16,500-sqft lot. Architectural tray ceilings, refined millwork, custom wall paneling, and thoughtfully designed built-ins with abundant storage add depth and craftsmanship while maintaining a light, contemporary coastal aesthetic. Formal living and dining rooms with elegant millwork provide an ideal setting for entertaining. The kitchen is appointed with Calacatta Gold marble countertops, gas cooking, Sub-Zero and Viking appliances, and a butler’s pantry. Additional highlights include 2 family rooms, fitness center with water views, 2 garages accommodating 7+ cars/golf carts, temperature-controlled wine cellar for 1,400+ bottles, elevator, retractable screen doors, generator and saltwater heated pool.

Facts
MLS #
A11934196
Subdivision
CAPE FLORIDA SUB SEC 3
Property type
Residential
Property subtype
Single Family Residence
Sq. ft.
8,240
Price per sq. ft.
$2,403 / sq ft
Year built
2007
Days on market
151
County
Miami-Dade County
Date listed
Jan 6, 2026
Last updated
Feb 11, 2026
Financial considerations
Taxes
$155,395 (2025)
Exterior features
Waterfront
Yes
View
Canal
Construction
CBS Construction
Roof
Metal Roof
Additional features
Lighting, Outdoor Shower
Interior features
Furnished
Furniture For Sale,Furniture Negotiable
Heating
Electric
Cooling
Electric
Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Microwave, Other Equipment/Appliances, Water Purifier, Gas Range, Refrigerator, Washer
Window features
Complete Impact Glass, Blinds, Impact Glass
Additional features
Built-in Features, Closet Cabinetry, Elevator, Vaulted Ceiling(s), Walk-In Closet(s), Den/Library/Office, Family Room, Other, Recreation Room
Additional features
Security
Smoke Detector
Community
Public Road

Mortgage calculator

Includes principal and interest, taxes and insurance.

Rate: Freddie Mac 30-year average (2026-10-22). Estimate only.

Loan amount$15,840,000
Total cost of mortgage$39,171,532
Monthly payment$108,810

Local context (our analysis)

Area stats are available for our covered neighborhoods. See neighborhoods.

Source: Southeast Florida MLS (SEFMLS). Last updated Feb 11, 2026, 10:32 AM ET

Listing data is deemed reliable but is not guaranteed accurate by the MLS. Information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.