GRAND BAY TOWER CONDO
430 Grand Bay Dr, Key Biscayne FL 33149
4 beds · 4.5 baths · 9,600 ft²
4
Bedrooms
4.5
Bathrooms
9,600
Sq. Ft.
1999
Year Built
14
Stories
154
Days on Market
Description
Dominating the Key Biscayne skyline, this Geoffrey Bradfield–designed penthouse is a rare display of power, prestige, and absolute luxury. Encompassing 13,630 sq. ft. with 10,421 sq. ft. under air and 3,000+ sq. ft. of oceanfront terraces, it commands 100 feet of unobstructed beachfront with sweeping sunrise and sunset views. Directly adjacent, the $100M+ newly reimagined Ritz-Carlton and its brand-new Beach Club sit at your footsteps, elevating exclusivity to a world-class level. Inside, soaring ceilings showcase a showpiece chef’s kitchen, grand dining, four-private en-suites, a refined executive office, staff quarters, and couture-caliber closets. Includes five premium parking spaces and five oversized private storage cages. A true trophy residence at the apex of coastal luxury.
Facts
- MLS#
- A11915787
- Subdivision
- GRAND BAY TOWER CONDO
- Property Type
- Residential
- Property Sub Type
- Condominium
- Year Built
- 1999
- Lot Size
- 0 sqft
- Sq. Ft.
- 9,600 ft²
- Sq. Mt.
- 892 m²
- Price per sq. ft.
- $2,708/ft²
- Price per sq. mt.
- $29,148/m²
- Stories
- 14
- Garage
- —
- Pool
- —
- Days on Market
- 154 days
- Listed
- Nov 18, 2025
- Last Updated
- Apr 21, 2026
- Price/Lot Sq.Ft.
- —
Comparable homes
Same ZIP, similar price + bedrooms.
Market insights for Key Biscayne
Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.
Sellers market
May 2026
77
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).
| 1/15/2026 | Price change | $26,000,000-23.3% |
| 11/18/2025 | Listed for sale | $33,900,000 |
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.
Xceed Preparatory Academy (Miami)6,7,8,9,10,11,12 · private · 0.9 mi
- Fusion Academy Miami
6,7,8,9,10,11,12 · private · 1.0 mi
- Fusion Academy - Miami
6,7,8,9,10,11,12 · private · 1.0 mi
- Gulliver Preparatory School
PK,KG,1,2,3,4,5,6,7,8,9,10,11,12 · private · 1.0 mi
- Pinecrest Elementary School
PK,KG,1,2,3,4,5 · public · 1.1 mi
- Rambam Day School Temple Beth Am
PK,TK,KG,1,2,3,4,5 · private · 1.3 mi
- Miami Palmetto Senior High Adult
UG · public · 1.3 mi
- Miami Palmetto Senior High School
9,10,11,12 · public · 1.3 mi
- Cattoira Montessori School
PK,TK,KG,1,2,3,4,5,UG · private · 1.3 mi
- Fairglade School
PK,KG,1,2,3,4,5 · private · 1.3 mi
Data provided by GreatSchools.org © 2026. All rights reserved.Estimated Monthly Payment
$160,200/mo
Principal & Interest
$138,383
Property Tax
$21,667
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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