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Homes for sale in Key Biscayne
Single Family Residence

1080 Mariner Dr

Key Biscayne, FL 33149
$19,750,000
Beds
6
Baths
6 + 1 half
Sq ft
6,468
Year built
2018
Price per sq ft
$3,053

Listing courtesy of Alina De La Vega, One Sotheby's International Realty

About this home

Spanning over 6,200 sq. ft. with 6 bedrooms and 6.5 baths, the home sits at the end of a private cul-de-sac with sweeping water and mangrove views. A dramatic entry opens to light-filled living spaces with floor-to-ceiling glass, wide-plank European oak floors, and custom millwork throughout. The sleek chef’s kitchen features Italian cabinetry, a marble waterfall island, and top-of-the-line Miele and Sub-Zero appliances. The primary suite offers a private sitting area, expansive custom closets, and a spa-style bathroom with book-matched marble, freestanding soaking tub, dual vanities, and glass-enclosed rain shower. Secondary suites are equally refined, each with bespoke finishes and private baths. Seamlessly connecting indoors and outdoors, the residence showcases covered terraces with natural stone flooring, a summer kitchen with custom cabinetry and Wolf appliances, and a resort-style pool surrounded by tropical gardens curated by CCLA. A private dock with direct Biscayne Bay access completes the waterfront lifestyle. Located within one of Miami’s most coveted island communities, this estate blends modern craftsmanship with timeless design, just minutes from pristine beaches, parks, dining, and top-rated schools.

Details

Property

Type
Single Family Residence
Style
Detached, Two Story
Building
WF/Pool/Ocean Access
Year built
2018
Lot size
12,900 sq ft
Building name
CAPE FLA SUB SEC 2
Subdivision
CAPE FLA SUB SEC 2
County
Miami-Dade County
Faces
South
View
Canal, Pool
Waterfront
Ocean Access
Flood zone
AE

Interior

Appliances
Dishwasher, Disposal, Dryer, Microwave, Wall Oven, Washer
Flooring
Tile
Cooling
Central Air, Electric
Heating
Central, Electric
Features
First Floor Entry, Cooking Island, Family Room
Furnished
Unfurnished

Exterior and parking

Exterior
Barbeque
Parking
Driveway, Paver Block
Garage spaces
2
Construction
CBS Construction
Roof
Aluminum

Community and fees

Annual taxes
$138,676
Terms
All Cash, Conventional

Neighborhood

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The data relating to real estate for sale or lease on this website comes in part from the Internet Data Exchange (IDX) program of MIAMI REALTORS® MLS. Listings are provided by participating brokers.

Information is deemed reliable but is not guaranteed and should be independently verified. It is subject to change and is provided for consumers’ personal, non-commercial use only, to identify properties they may be interested in. Listing last updated November 5, 2026.