1080 Mariner Dr, Key Biscayne FL 33149, photo 1
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$19,750,000

Single Family ResidenceActive
⏱️ Listed today
6Beds
7Baths
6,468Sq Ft
2018Built

1080 Mariner Dr, Key Biscayne FL 33149

MLS #A12117649

About This Property

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.

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Marie I. Sanjurjo
Licensed Broker
Blue Mar Real Estate Group
📞 (305) 680-5672💬 WhatsApp Marie✉️ [email protected]

About Key Biscayne

Key Biscayne is a barrier island community just a bridge ride from Brickell, offering an island lifestyle wrapped around Crandon Park, Cape Florida State Park, and the Crandon Golf Course. The village is known for its safety, top-rated schools, and walkable pace, with residents ranging from young families to international buyers seeking secondary residences. Limited inventory and tight geography keep prices premium relative to mainland Miami.

Explore Key Biscayne →📊 Key Biscayne market report

Property Details

Property Type

Single Family Residence

Year Built

2018

Living Area

6,468 sq ft

Lot Size

12,900 sq ft

Bedrooms

6

Bathrooms

7

Garage

2 Spaces

Pool

No

Waterfront

Yes

Cooling

Central Air, Electric

Heating

Central, Electric

Roof Type

Aluminum

Flooring

Tile

Construction

CBS Construction

Style

Detached, Two Story

HOA Fee

None

Annual Taxes

$138,676 (2025)

Days on Market

0

MLS #

A12117649

Features & Amenities

Interior

First Floor EntryCooking IslandFamily Room

Appliances

DishwasherDisposalDryerMicrowaveWall OvenWasher

Exterior

Barbeque

Community

Other

Other

Ocean AccessDrivewayPaver Block

Nearby Schools

Assigned public schools pulled from Miami-Dade County Public Schools’s official attendance-boundary data. Verify current boundaries with MDCPS before buying — zones can change year to year.

Assigned Public Schools
Elementary
Key Biscayne K-8 Center
Grades PK-8
150 W McIntire St., Key Biscayne 33149
Middle
Ponce de Leon MS
Grades 6-8
5801 Augusto St., Coral Gables 33146
High
Coral Gables Senior High
Grades 9-12
450 Bird Rd., Coral Gables 33146
Private Schools Within 5 Miles
St Christophers - By-The-Sea Montessori School1.1 mi
95 Harbor Dr, Key Biscayne
Key Biscayne Presbyterian School1.2 mi
160 Harbor Dr, Key Biscayne
St Agnes Academy1.2 mi
122 Harbor Dr, Key Biscayne
Immaculata-La Salle High School4.9 mi
3601 S Miami Ave, Miami

School data source: Miami-Dade County Open Data Hub

Location

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City

Key Biscayne

State

FL

ZIP Code

33149

County

Miami-Dade County

Subdivision

CAPE FLA SUB SEC 2

$19,750,000
1080 Mariner Dr, Key Biscayne FL 33149
6Beds
7Baths
6,468Sq Ft
📞 (305) 680-5672💬 WhatsApp
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1080 Mariner Dr, Key Biscayne FL 33149$19,750,000

Listing provided by Alina De La Vega at One Sotheby's International Realty. Data from Miami Association of REALTORS®. All information deemed reliable but not guaranteed. Listing #A12117649.