Virtual TourMap

For SaleSingle Family ResidenceActive

1080 Mariner Dr

Key Biscayne, FL 33149

$19,750,000

9 Days On Site

  • 6Beds
  • 7Baths6 full, 1 half
  • 6,468Sq Ft
  • $3,053Per Sq Ft
  • 0.2961Acres
  • 2018Built
Subdivision
Cape Fla Sub Sec 2
County
Miami-Dade
MLS®
A12117649

Overview

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.

Listing Snapshot

Price
$19,750,000
Days On Site
9 Days
Bedrooms
6
Inside Area (SqFt)
6,468 sqft
Total Baths
7
Full Baths
6
Partial Baths
1
Lot Size
0.2961 Acres
Year Built
2018
MLS® Number
A12117649
Status
Active
Property Tax
$138,676 (2025)
HOA/Condo/Coop Fees
N/A
Sq Ft Source
N/A

Property Details

General Features

11 items
Direction Faces
South
Garage
Yes
Garage Spaces
2
Levels
Two
Parking
Driveway, Paver Block
Property Sub Type
Single Family Residence
Sewer
Public Sewer
SqFt Total
8,699
Style
Detached, TwoStory
Water Source
Public
Zoning
2000

Interior Features

6 items
Appliances
Dryer, Dishwasher, Disposal, Microwave, Washer, Oven
Cooling
Central Air, Electric
Flooring
Tile
Furnished
Unfurnished
Heating
Central, Electric
Interior
Kitchen Island, Master Downstairs

Exterior Features

10 items
Construction Details
Block, Concrete
Exterior
Barbecue
Frontage
0
Lot Features
Waterfront
Pool Features
Other, Private
Private Pool
Yes
Roof
Aluminum
View
Canal, Pool
Waterfront
Yes
Waterview
Canal, Pool

Community Features

3 items
Community Features
Other
MLS Area
52
Financing Terms Available
Cash, Conventional

Location

1080 Mariner Dr, Key Biscayne, FL 33149 · 52

Neighborhood & Commute

ZIP Code 33149

Median household income
$152,895
Income per person
$72,459
Households
5,812
Average household size
2.75
Median age
41.6

Source: Walk Score.

Disclosure: Community information and market data powered by Constellation Data Labs. Information is deemed reliable but not guaranteed.

Schools

Elementary School
Keybiscayne
Middle School
Ponce De Leon
High School
Coral Gables

Price & Status History

  1. Listing updated with changes from the MLS®
  2. Status changed to Active
  3. Listing first seen on site
  4. Price changed to $19,750,000

Friends & Family

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Listing courtesy of One Sotheby's International Realty (305) 335-8219

Stellar MLS

Listing information is provided by Participants of the Stellar MLS. IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed. Properties displayed may be listed or sold by various participants in the MLS Copyright 2026, Stellar MLS.

Last checked: 2026-11-14 01:05 AM EST

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