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For sale

87429 Old Hwy

Islamorada, FL 33036

$18,999,000

$3,138/ft²

6Beds
6Baths
6,054Sq ft
2022Year built
Single-family homeType

About this home

A private sanctuary of coastal sophistication, The Oasis offers two residences spanning 2.85 meticulously landscaped acres with over 400 feet of pristine waterfront and a protected deepwater basin. Designed for elevated living, The Oasis blends resort-style amenities with the privacy and scale of a true Florida Keys compound. The grand porte-cochère entry sets the tone, leading to a single-level main residence with soaring ceilings, white oak floors, and 12' retractable glass walls that frame sweeping ocean views. The chef's kitchen is anchored by a Calacatta marble island, Thermador appliances, and a walk-in pantry, opening to a spacious great room and dining area ideal for entertaining. The main home features four bedrooms, six full bathrooms, and a soundproof theater. The primary suite is a private retreat with a fireplace, dual walk-in closets, a safe room, and a spa-inspired bath with a steam shower. Each additional bedroom includes an en suite bath, private balcony, and ocean views. A detached guest house offers two additional bedrooms and bathrooms, creating a total of six bedrooms across the estate with endless space for expansion. The summer kitchen, alfresco dining areas, and multiple lounging terraces offer seamless indoor-outdoor living. The deepwater basin accommodates larger vessels. Amenities rival a private resort: soundproof theater, fitness center with sauna, golf simulator, and two resort-style pools—each with a spa, sun deck, & outdoor entertaining spaces.

Features

  • Waterfront

Property details

Listing

MLS #
A11990479
Status
For sale
Listed on
Mar 27, 2026
Days on market
136 days
Listing data updated
Aug 1, 2026

Interior

Beds
6
Baths
6
Living area
6,054 ft²
Price per ft²
$3,138/ft²

Building & community

Type
Single-family home
Year built
2022
County
Monroe

Lot & exterior

Lot size
124,146 ft²
Waterfront
Yes

Days on market, price per ft² and the monthly HOA amount are calculated by this site from the MLS data shown; the association fee is normalized to a monthly figure.

True monthly cost

Mortgage (principal & interest)
$96,069
Property taxes (est.)
$17,416
Home insurance (est.)
$600
Flood insurance (est.)

Estimated total$114,085*/mo

* Some cost lines aren't available yet for this listing; the total shown is incomplete.

Based on 20% down, a 6.5% rate and a 30-year loan, plus this home's estimated Florida carrying costs. All figures are illustrative estimates — not quotes, not financial or insurance advice.

Sources: flood zone — FEMA National Flood Hazard Layer; mortgage, taxes and insurance figures — this site's own estimates; HOA / CDD — as reported for this listing.

What will this home really cost you?

Location

Mortgage calculator

$96,069/moEstimated principal & interest. Taxes, insurance, and HOA are not included. This is an estimate, not a quote or financial advice.

Equal Housing Opportunity

This listing is courtesy of Ocean Sothebys Intl Realty.

Michaela Walters · 305-923-1337 · michaelamariewaltersrealestate@yahoo.com · 305-712-8888

Data deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.

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