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Slice RealtyPropiedad Futura

$18,999,000

6 bd · 8 ba · 6,692 sq ft · Single Family Residence

87429 Old Hwy, Islamorada FL 33036

For Sale · Active listing

Est. payment $105,236/mo · Mortgage calculator

Listed by Ocean Sothebys Intl Realty / Michaela Walters

Contact: 305-923-1337 (listing contact).

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

About this home

The Oasis Islamorada is a waterfront estate of exceptional scale, conceived as a private Florida Keys compound where architecture, land and water come together spanning nearly 3 meticulously landscaped acres. More than 400' of shoreline, sweeping ocean views and a protected deepwater basin create a marine setting rarely available within a single residential offering. Beyond the grand porte-cochère, the single-level main residence unfolds with soaring ceilings, white oak floors and 12-foot retractable glass walls that dissolve the boundary between interior and oceanfront living. At its center, a chef's kitchen pairs a cascading Calacatta marble island with Thermador appliances and a walk-in pantry, opening seamlessly to expansive living and dining spaces. The main residence includes four bedrooms and six full baths, with an impressive primary suite featuring a fireplace, dual walk-in closets, safe room and spa bath with steam shower. Additional suites offer en suite baths, private balconies and ocean views. A detached two-bedroom, two-bath guest residence brings the estate to six bedrooms while preserving privacy between owners and guests, with substantial grounds offering extraordinary flexibility for the future. Outside, the property assumes the scale of a private resort. Two resort-style pools with spas and sun decks are joined by a summer kitchen and multiple terraces. A fitness center with sauna, soundproof theater and golf simulator complete the lifestyle offering.

Facts
MLS #
A12092985
Subdivision
PLANTATION BEACH
Property type
Residential
Property subtype
Single Family Residence
Sq. ft.
6,692
Price per sq. ft.
$2,839 / sq ft
Year built
2022
County
Monroe County
Date listed
Sep 21, 2026
Last updated
Sep 22, 2026
Financial considerations
Taxes
$64,866 (2025)
Exterior features
Waterfront
Yes
View
Ocean, Direct Ocean
Construction
Concrete Block Construction, CBS Construction
Roof
Metal Roof
Additional features
Built-In Grill, Lighting
Interior features
Heating
Central
Cooling
Central Air
Appliances
Dishwasher, Disposal, Dryer, Microwave, Refrigerator, Wall Oven, Washer
Window features
Complete Impact Glass, Electric Shutters, Impact Glass
Additional features
Built-in Features, Entrance Foyer, Other, Pantry, Vaulted Ceiling(s), Walk-In Closet(s), Separate Guest/In-Law Quarters, Media Room, Recreation Room, Sauna, Storage, Utility Room/Laundry
Additional features
Community
Boating, None

Mortgage calculator

Includes principal and interest, taxes and insurance.

Rate: Freddie Mac 30-year average (2026-10-15). Estimate only.

Loan amount$15,199,200
Total cost of mortgage$37,885,029
Monthly payment$105,236

Local context (our analysis)

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

Source: Southeast Florida MLS (SEFMLS). Last updated Sep 21, 2026, 9:00 PM 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.