$19,750,000
1080 Mariner Drive
Key Biscayne, FL 33149
MLS# A12117649
6 beds  |  7 baths  |  8699 sqft
Modern residence featuring a concrete exterior, floor-to-ceiling glass windows, stone cladding, and a concrete paver walkway
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Modern residence featuring a concrete exterior, floor-to-ceiling glass windows, stone cladding, and a concrete paver walkway Modern architectural exterior featuring smooth stone facade, vertical wood-slat siding, expansive glass paneling, tiered stone stairs with recessed lighting, and a paved courtyard with integrated dark stone inlay Modern architectural exterior featuring expansive glass curtain walls, horizontal slat cladding, smooth stone facade panels, and a tiered concrete paver walkway Modern architectural facade featuring smooth stone exterior walls, extensive floor-to-ceiling glass windows, and a paved stone walkway leading to the entry Waterfront swimming pool with an integrated tanning ledge, expansive wood-finish decking, tiered stone staircases, and recessed architectural lighting Modern waterfront estate featuring a linear lap pool, wood-plank decking, stone terrace steps, floor-to-ceiling glass wall systems, and a wood-paneled ceiling overhang Contemporary waterfront exterior featuring a multi-level swimming pool with stone-tiled steps, a wood-finish deck, floor-to-ceiling glass sliding doors, and integrated recessed lighting Modern architectural exterior featuring expansive glass wall panels, a wood-paneled balcony ceiling, multiple tiers of stone steps, and a swimming pool with integrated wood decking Waterfront residence featuring a private wooden dock, concrete swimming pool, manicured lawn, and multi-level structural exterior Modern waterfront residence featuring floor-to-ceiling glass walls, a private wooden dock, and a rectangular inground swimming pool situated on a manicured lawn Covered patio featuring natural stone flooring, recessed ceiling lighting, and a ceiling fan, opening to a rectangular swimming pool with a wood-plank deck and waterfront bulkhead Modern two-story architectural exterior featuring stone masonry, wood-panel siding, floor-to-ceiling glass windows, and a paved stone driveway Modern architectural exterior featuring expansive glass windows, warm-toned vertical wood-slat siding, large-format stone wall cladding, tiered steps with synthetic turf inlay, and a paved courtyard with gravel-accented geometric concrete patterns Large-format stone tile flooring, expansive floor-to-ceiling multi-panel glass doors, structural wall finished with oversized stone cladding, and recessed linear track lighting Double-height ceilings, floor-to-ceiling glass wall, large-format tile flooring, and recessed architectural lighting Open-concept interior featuring large-format tile flooring, a prominent stone-clad accent wall, floor-to-ceiling glass wall panels, a wood-tread floating staircase with glass railings, and a mezzanine level with glass balustrades Expansive living area featuring floor-to-ceiling black-frame glass windows, natural stone feature wall, polished concrete flooring, built-in wooden cabinetry, and recessed linear lighting Full-height black-framed glass sliding wall panels, expansive neutral-toned floor tile, modern multi-arm linear pendant light fixture, and recessed ceiling lighting Open-concept interior featuring floor-to-ceiling glass panel walls, large-format tile flooring, a stone feature wall, and recessed linear lighting Open-concept interior featuring large-format tile flooring, recessed ceiling lighting, a modern spherical pendant fixture, and expansive floor-to-ceiling sliding glass doors Covered outdoor patio featuring large-format tile flooring, recessed ceiling lighting, a ceiling fan, and a built-in outdoor kitchen with a stainless steel range hood and grill Covered outdoor terrace featuring large-format stone flooring, a built-in stainless steel outdoor kitchen, retractable glass wall panels, and a transparent glass railing Covered outdoor patio featuring stone flooring, a ceiling-mounted fan, a built-in stainless steel outdoor kitchen, and floor-to-ceiling glass sliding doors Covered outdoor living area featuring large-format tile flooring, a ceiling-mounted fan, recessed lighting, and a swimming pool overlooking a canal with a wood-finish bulkhead Modern kitchen featuring flat-panel cabinetry, a waterfall-edge wood-finish breakfast bar, integrated stainless steel appliances, linear pendant lighting, and stone-clad structural columns Custom kitchen featuring a central island with an integrated cooktop and undermount sink, matte finish cabinetry, floor-to-ceiling built-in storage, and a tiered wood-finish breakfast bar Modern kitchen featuring flat-panel cabinetry, a central island with a built-in cooktop, integrated range hood, recessed ceiling lighting, and large-format tile flooring Kitchen featuring flat-panel cabinetry, stone-topped island with gas cooktop, integrated high-end appliances, and an attached wood-surface breakfast bar with pendant lighting Modern kitchen featuring high-gloss cabinetry, a quartz waterfall island, built-in wine refrigeration, integrated gas cooktop, and floor-to-ceiling glass panel walls Staircase featuring wood-finish treads, a vertical ribbed matte black accent wall, and a black metal handrail Floor-to-ceiling windows, wood-finish flooring, glass panel railing, and structural metal slats Photo 32 Floor-to-ceiling windows, wood-finish flooring, recessed linear lighting, louvered doors, and glass panel railing Modern interior featuring wood-finish flooring, floor-to-ceiling glass sliding doors with black frames, recessed ceiling lighting, and a bathroom equipped with a wall-mounted floating vanity and dual vessel sinks Floor-to-ceiling black-framed windows, recessed ceiling lighting, custom white cabinetry, wood-finish flooring, and integrated display shelving Floor-to-ceiling windows, wood-finish flooring, built-in floor-to-ceiling cabinetry, recessed lighting, and integrated shelving Floor-to-ceiling windows, wood-finish flooring, built-in floor-to-ceiling cabinetry, sliding glass doors, and a private balcony with glass railing Floor-to-ceiling glass sliding doors, dark metal window frames, wood-finished ceiling accents, recessed lighting, and water-front access Covered terrace featuring wood-plank ceiling, large-format tile flooring, frameless glass railing, and wall-mounted exterior lighting Expansive covered terrace featuring large-format tile flooring, wood-paneled ceiling, frameless glass railing, and oversized sliding glass door panels Modern bathroom featuring large-format stone flooring, a charcoal oval soaking tub, expansive glass-enclosed walk-in shower, wall-mounted wooden cabinetry with dual vessel sinks, and recessed lighting Floating dual-sink vanity with matte wall-mounted faucets, stone-tiled wall, recessed built-in shelving, freestanding soaking tub, and recessed ceiling lighting Bathroom featuring a freestanding composite soaking tub, walk-in glass-enclosed shower with rain-style showerhead, light-toned stone-finish wall and floor tile, built-in shelving, and black-framed louvered windows Enclosed glass shower with ceiling-mounted rainfall showerhead, stone tile flooring, wall-to-wall stone tile surrounds, wall-mounted rectangular medicine cabinet with integrated mirror, and matte finish door hardware Custom walk-in closet featuring integrated shelving, illuminated hanging rods, wood-finish cabinetry, a central storage island with a glass countertop, and recessed ceiling lighting Floor-to-ceiling sliding glass doors, wood-finish flooring, recessed ceiling lighting, built-in wall shelving, and inset wall niches Floating vanity featuring dual integrated sinks, wall-mounted polished chrome faucets, large frameless mirror, and a walk-in glass-enclosed shower with floor-to-ceiling tile work Freestanding soaking tub featuring a wall-mounted faucet and hand shower, surrounded by large-format light-toned wall tile and a recessed shelving niche Floating wood-slat vanity with a rectangular vessel sink, wall-mounted industrial-style faucet, vertical wood privacy screen, and built-in metallic recessed shelving Covered outdoor living space with large-format tile flooring, ceiling fan, recessed lighting, swimming pool, and wooden dock Covered outdoor terrace featuring large-format stone flooring, floor-to-ceiling glass sliding doors, recessed ceiling lighting, and a built-in outdoor kitchen with a stainless steel grill Covered patio featuring large-format stone flooring, a built-in outdoor kitchen with stainless steel appliances, floor-to-ceiling glass sliding doors, and a glass panel perimeter railing Waterfront pool deck featuring a wood-plank terrace, stone stairs, and deep-water pilings Waterfront property featuring a private wood-plank dock with ladder access, a swimming pool, stone-paver pool deck, and a manicured lawn Waterfront outdoor living area featuring a covered terrace, in-ground pool, stone-paved deck, and private wooden dock Covered outdoor living space featuring a stone-tiled deck, recessed lighting, and a ceiling fan Covered outdoor patio featuring large-format stone flooring, built-in stainless steel kitchen with ventilation hood, recessed ceiling lighting, and frameless glass railing overlooking the waterway Garage space featuring integrated floor-to-ceiling cabinetry, recessed lighting, electric vehicle charging station, and finished flooring Aerial perspective of waterfront properties featuring direct waterway access, private boat docks, and proximity to expansive coastal mangrove preserves Waterfront parcel featuring extensive canal frontage, mature perimeter landscaping, and direct access to navigable waterways

Property Description
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
Maps
Contract Information
Comp Sale YN: No
Listing Date: 2026-11-04
Status: Active
Original List Price: 19750000
List Price: $19,750,000
Current Price: $19,750,000
Occupant Type: Owner
Location and Legal
Country: United States
County Or Parish: Miami-Dade
County Parish Name: Miami-Dade
Street Number: 1080
Street Name: Mariner
Street Suffix: Drive
City Name: Key Biscayne
Municipal Code: 24
State Or Province: FL
Postal Code: 33149
Postal Code +4: 2474
Postal Zip: 33149
Subdivision Name: CAPE FLA SUB SEC 2
Area: 2520
Elementary School: Key Biscayne K-8
Middle Or Junior School: Ponce De Leon
High School: Coral Gables
Parcel Number: 2452050110160
Subdivision Number: 11
Zoning: 2000
Flood Zone: AE
General Property Information
Property Sub Type: Single Family Residence
Bedrooms Total: 6
Bathrooms Total: 7
Bathrooms Full: 6
Bathrooms Half: 1
Building Area Main: 8699
Living Area Main: 6468
Adjusted Area Main: 6871
Year Built: 2018
Garage YN: 1
Garage Spaces: 2
Covered Spaces: 2
Lot Size Area: 12900
Lot Size Acres: 0.3
Senior Community YN: Yes
Waterfront YN: 1
Stories Total: 2
Direction Faces: South
Pool Private YN: Yes
Furnished: Unfurnished
Financial Information
Membership Fee Required YN: No
Tax Annual Amount: 138676
Tax Year: 2025
Tax Legal Description: 5 55 42 CAPE FLA SUB SEC 2 PB 70-67 LOT 9 BLK 6 & PROP INT IN & TO WATERWAY LOT SIZE 100.000 X 129 OR 18730-1581 0699 4
Entry Information
Entry Level: 1
Boat and Dock Information
Dock: Yes
Storm Protection
Impact Glass: Partial
Price Calculations
Current Price To SqFt: 3053.49
Section Details
Parcel Number MLX: 0160
Status Change Information
Major Change Timestamp: 2026-11-04T05:00:00Z
Major Change Type: New Listing
Status Change Date: 2026-11-04
Originating Details
Originating System Key: 569699198
Originating System ID: M00000151
Property Features
Exterior Features: Barbecue
Flooring: Tile
Parking Features: Driveway; Paver Block
Property Condition: Resale
Appliances: Dishwasher; Disposal; Dryer; Microwave; Oven; Washer
Boat and Dock Features: Private Dock
Construction Materials: CBS
Cooling: Central Air; Electric
Heating: Central; Electric
Interior Features: Kitchen Island
Levels: Two
Listing Terms: Cash; Conventional
Pool Features: Other
Possession: Negotiable
Restrictions: No Restrictions
Roof: Aluminum
Sewer: Public Sewer
Special Information: Sold As-Is
Tax Information: Tax Reflects No Exemptions
View: Pool
Water Access: Other
Water Source: Public
Water View: Canal
Showing Requirements: Call Listing Agent
Room Types: Family Room
Acreage Description: 1/4 To Less Than 1/2 Acre Lot
Room Information
Room Name
Family Room
IDX
Listing Office: One Sotheby's International Realty
Source MLS Verified

Last Updated: November - 05 - 2026

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