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| Asking Price | $6,900,000 |
|---|---|
| Price per SqFt | $1,747 |
| Maintenance Fee | $4,398 Monthly |
| Property Taxes | $131,192 2025 |
| Interior Space | 3,950 SqFt |
| Beds/Baths | 2/3½ |
| Year Built | 1999 |
| MLS # | A11973615 |
Location
From the listing
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.
Listed by Coldwell Banker Realty
What It Costs to Own
Monthly, before a mortgage and insurance
Maintenance $4,398 a month; taxes $131,192 for 2025. MLS figures, which may not be accurate.
Sales History for This Unit · Grand Bay Tower Unit 801
Sales history is unavailable for this property
What Other Units Have Been Selling For at Grand Bay Tower
No comparable sales on record.

Listed by Coldwell Banker Realty. Mark Zilbert of ONE Sotheby's International Realty is a cooperating (transaction) broker and helps buyers find properties in Key Biscayne and throughout South Florida.
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Grand Bay Tower Unit 801, 430 Grand Bay Drive · MLS A11973615 · $6,900,000
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The curated data and calculated data for this property and its surrounding condo units and homes is based solely on data we have extracted from the MLS. There may be unpublished, private, quit claim and other property offerings and transfers that do not appear here, which may affect how a buyer or seller perceives property values. Always conduct proper due diligence when considering buying or selling property.
More at Grand Bay Tower
At Grand Bay Tower, 4 of 100 units are for sale and 2 sold in the last 12 months at an average of $1,503 per SqFt. Unit 801 asks $1,747 per SqFt, above the building's recent sold average. Figures compiled by Mark Zilbert, a Key Biscayne real estate agent with ONE Sotheby's International Realty, from MLS records.


