Premier Brokers International
87429 Old Highway, Islamorada, FL 33036
ActiveMLS listing sourceMIAMI REALTORS® MLS
ActiveMLS® A12092985
$18,999,000

87429 Old Highway, Islamorada, FL 33036

Beds
6
Baths
8
Sqft
6,692
Est. payment$113,487/mo
Home type
Single Family Residence
Year built
2022
Lot size
124,146 sqft
Price / sqft
$2,839
HOA
$0/mo
Community
PLANTATION BEACH

Property description

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.

Listing activity

Days on market
0
Listed
Sep 21, 2026
MLS listing updated
Sep 22, 2026
Feed last checked
7 minutes ago

Listed by Michaela Marie Walters · Ocean Sothebys Intl Realty

Map

Map location is based on MLS-supplied coordinates. Verify the location before relying on it.

Facts & features

Interior

Bedrooms & bathrooms

Bedrooms
6
Bathrooms
8
Bathrooms (decimal)
8
Full bathrooms
8
Half bathrooms
0

Rooms & features

Rooms
5
Interior features
Built-in Features, Entrance Foyer, Pantry, Storage, Vaulted Ceiling(s), Walk-In Closet(s), Other
Flooring
Carpet, Wood
Appliances
Dishwasher, Disposal, Dryer, Microwave, Oven, Refrigerator, Washer
Fireplace
Yes

Heating & cooling

Heating
Central
Cooling
Central Air
Property

Parking

Garage spaces
8
Garage
Yes
Covered spaces
8
Parking features
Boat Access/Parking, Circular Driveway, Covered, Driveway, Garage Door Opener, Golf Cart Garage, Guest, Paver Block, RV Access/Parking
Attached garage
No

Exterior

Building area
18,309 sqft
Exterior features
Built-in Barbecue, Lighting
Fencing
Fenced
Other structures
Outbuilding, Shed(s)
Pool
Yes
Pool features
Concrete, Heated
View
Ocean, Direct Ocean
Waterfront
No Fixed Bridge, Ocean
Waterfront property
Yes
Spa
Yes

Lot

Lot size
124,146 sqft
Lot size (acres)
2.85 acres
Zoning
SR
Construction

Type & style

Home type
Single Family Residence
Architectural style
Contemporary
Year built
2022

Materials

Construction
Block, CBS
Roof
Metal
Faces
West
Utilities & green energy

Utilities

Sewer
Public Sewer
Water
Public
Community & HOA

Community

Subdivision
PLANTATION BEACH
MLS area
5940 - Other Florida County
MLS subarea
Other
Pets allowed
Yes
55+ community
Yes

Association

Has association
No
Estimated monthly dues
$0
Amenities
Boating, None
Lease details

Not reported by the listing source.

Location

Area details

City
Islamorada
County
Monroe
ZIP code
33036
Manufactured home details

Not reported by the listing source.

Financial & listing details

Listing

MLS number
A12092985
Possession
Close Of Escrow
Original list price
$18,999,000
Parcel number
00415210000000
Annual property tax
$64,866
Tax year
2025
Tax legal description
TR P AND FILL & BAY BTM SELY ADJ TRACT P PLANTATION BEACH PB2-76 PLANTATION KEY G69-557 OR213-513 OR777-901 OR777-902 OR785-1571 OR785-1572
Additional MLS details

Reported by the listing source

Association Amenities
Boating, None
Association
No
Bathrooms Total Decimal
8
Bathrooms Total Integer
8
Building Area Total
18309
Construction Materials
Block, CBS
County Or Parish
Monroe
Days On Market
0
Direction Faces
West
Elementary School
Plantation Key
High School
Coral Shores
List Price
18999000
Listing Contract Date
2026-09-21
Living Area
6692
Lot Size Acres
2.85
Lot Size Area
124146
MLSArea Major
5940 - Other Florida County
MLSArea Minor
Other
Middle Or Junior School
Plantation Key
Mls Status
Active
On Market Date
2026-09-21
Photos Count
100
Postal Code
33036
Property Sub Type
Single Family Residence
Property Type
Residential
Rooms Total
5
Senior Community
Yes
Standard Status
Active
State Or Province
FL
Status Change Timestamp
2026-09-21T04:00:00Z
Subdivision Name
PLANTATION BEACH
Water Source
Public
Waterfront Features
No Fixed Bridge, Ocean
Tax Annual Amount
64866
Bathrooms Full
8
Pool Private
Yes
Bedrooms Total
6
Bathrooms Half
0
General Property Information: Senior Community
Yes

Market value

Automated estimate—No licensed valuation source connected
Estimated sales range—Ask Karim for a local market analysis
Estimated rent—No licensed rental valuation source connected

Price history

DateEventPrice
Sep 21, 2026ListedMIAMI REALTORS® MLS$18,999,000$2,839/sqft

Public tax history

YearProperty taxesAssessment
2025$64,866—

Payment calculator

Estimated monthly payment$113,487/moIllustrative estimate, not a loan offer.
Principal & interest
$98,582
Property taxes
$5,406
Insurance
$9,500
Association dues
$0

Live national rate context is displayed below through Mortgage News Daily’s official widget. The calculator rate remains a separate assumption until licensed machine-readable access is connected. This is not a loan offer.

Neighborhood

Area

PLANTATION BEACH

Islamorada · Monroe County · 33036

Climate risk

—

No licensed climate-risk source is connected.

Nearby schools

Plantation KeyElementary
—
Plantation KeyMiddle
—
Coral ShoresHigh
—
School names and districts are MLS-reported when available. Verify attendance boundaries with the school district. Ratings require a licensed ratings provider.

Nearby homes

12 homes

Similar homes

5 homes
MLS listing source

MIAMI REALTORS® MLS · Listing courtesy of Ocean Sothebys Intl Realty. All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc. IDX information is provided exclusively for consumers’ personal, non-commercial use and may be used only to identify prospective properties they may be interested in purchasing or leasing. Terms of use · Equal Housing Opportunity.