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Slice RealtyPropiedad Futura

$6,900,000

2 bd · 4 ba · 3,950 sq ft · Condominium

430 Grand Bay Dr # 801, Key Biscayne FL 33149

For Sale · Active listing

Est. payment $37,919/mo · Mortgage calculator

Listed by Coldwell Banker Realty / Adriana Vollmer

Contact: 305-302-8949 (listing contact).

Shown through Slice Realty. Requests from this page reach Slice Realty / Propiedad Futura, not the listing agent.

About this home

Commanding breathtaking Atlantic vistas from its privileged eighth-floor setting at Grand Bay Tower, this residence is a rare offering on Key Biscayne. Enjoying an unusually private setting with unobstructed ocean views and minimal visibility from neighboring residences, the home offers a level of seclusion seldom found in oceanfront condominium living. Originally a three-bedroom, five-and-a-half-bath home, it has been masterfully reimagined into a grand two-bedroom, three-and-a-half-bath layout, enhancing scale and flow for refined entertaining and effortless daily living. Spanning approximately 3,950 square feet, the living and dining areas, a cozy family room, and a bright kitchen with breakfast area are complemented by three terraces totaling approximately 595 square feet, seamlessly integrated to capture sweeping Atlantic views from every room. Custom woodwork by renowned designer Juan Montoya enriches the interiors, while the serene primary suite offers a secluded sitting room, bespoke closets, and a spa-inspired bath, creating a private sanctuary within this singular home. The sale includes a private guest quarters—an increasingly rare and coveted amenity at Grand Bay—as well as two storage units. Combining exceptional scale, refined finishes, remarkable privacy, unobstructed Atlantic views, and desirable ancillary spaces, this residence represents a unique opportunity within one of Key Biscayne’s most prestigious oceanfront buildings.

Facts
MLS #
A11973615
Subdivision
GRAND BAY TOWER CONDO
Property type
Residential
Property subtype
Condominium
Sq. ft.
3,950
Price per sq. ft.
$1,747 / sq ft
Year built
1999
Days on market
162
County
Miami-Dade County
Date listed
Mar 18, 2026
Last updated
Sep 9, 2026
Financial considerations
HOA fee
$4,398 monthly
Taxes
$131,192 (2025)
HOA amenities
Bike Storage, Exercise Room, Heated Pool, Pool
Exterior features
Waterfront
Yes
View
Ocean View, Direct Ocean
Construction
CBS Construction
Additional features
Open Balcony
Interior features
Heating
Electric
Cooling
Central Air
Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Microwave, Electric Range, Refrigerator
Window features
Electric Shutters, Hurricane Shutters
Additional features
Lobby, Closet Cabinetry, Cooking Island, Fire Sprinklers, Entrance Foyer, Laundry Tub, Chandelier To Be Replaced, Walk-In Closet(s), Family Room, Media Room, Storage, Utility Room/Laundry
Additional features
Pets allowed
Restrictions Or Possible Restrictions
Security
Fire Sprinklers, Doorman, Card Entry, Lobby Secured

Mortgage calculator

Includes principal and interest, taxes and insurance.

Rate: Freddie Mac 30-year average (2026-10-22). Estimate only.

Loan amount$5,520,000
Total cost of mortgage$13,650,685
Monthly payment$37,919

Local context (our analysis)

Area stats are available for our covered neighborhoods. See neighborhoods.

Source: Southeast Florida MLS (SEFMLS). Last updated Sep 9, 2026, 11:58 AM ET

Listing data is deemed reliable but is not guaranteed accurate by the MLS. Information is provided for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.