$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.
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.