GRAND BAY TOWER CONDO
430 Grand Bay Dr # 801, Key Biscayne FL 33149
2 beds · 3.5 baths · 3,950 ft²
$6,900,000
Est. Payment $36,725/mo
2
Bedrooms
3.5
Bathrooms
3,950
Sq. Ft.
1999
Year Built
2
Garage
13
Stories
77
Days on Market
Description
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 Sub Type
- Condominium
- Year Built
- 1999
- Lot Size
- 0 sqft
- Sq. Ft.
- 3,950 ft²
- Sq. Mt.
- 367 m²
- Price per sq. ft.
- $1,747/ft²
- Price per sq. mt.
- $18,801/m²
- Stories
- 13
- Garage
- 2 spaces
- Pool
- —
- Days on Market
- 77 days
- Listed
- Mar 18, 2026
- Last Updated
- Jun 16, 2026
- Price/Lot Sq.Ft.
- —
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Market insights for Key Biscayne
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
July 2026
52
Median days to sold
+4.5%
1-year price forecast (est.)
Price & tax history
From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).
| 3/18/2026 | Listed for sale | $6,900,000 |
History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).
Location
GreatSchools Summary Ratings
Public + private K-12 schools within 5 miles of this listing.
Fisher Island Day SchoolPK,KG,1,2,3,4,5,6,7,8 · private · 0.5 mi
South Pointe Elementary SchoolPK,KG,1,2,3,4,5 · public · 0.9 mi
Landow Yeshiva CenterPK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 1.5 mi
Klurman Mesivta High School7,8,9,10,11 · private · 1.5 mi
Fienberg/Fisher K-8 CenterPK,KG,1,2,3,4,5,6,7,8 · public · 1.8 mi
Miami Beach Adult & Community Ed CenterUG · public · 1.8 mi
Amikids Miami-Dade South6,7,8,9,10,11,12 · public · 2.0 mi
Temple Beth Shmuel MontessoriPK,KG · private · 2.2 mi
Mast Academy6,7,8,9,10,11,12 · public · 2.4 mi
Miami Beach Senior High School9,10,11,12 · public · 2.7 mi
Estimated Monthly Payment
$42,625/mo
Principal & Interest
$36,725
Property Tax
$5,750
Insurance
$150
HOA
$0
Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.
The data relating to real estate for sale on this website comes in part from the Southeast Florida Multiple Listing Service. MLS Data is deemed reliable, but is not guaranteed accurate by MIAMI REALTORS®.
Accuracy of listing information is not guaranteed. Listing information is provided for personal consumer, non-commercial use, solely to identify potential properties for potential purchase. All other use is strictly prohibited and may be a violation of federal and state law.
Copyright Southeast Florida MLS a/k/a SEFMLS © 2026.
Updated within 24 hours
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