430 Grand Bay Dr, Key Biscayne FL 33149, photo 1
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$26,000,000

CondominiumActive
⏱️ Listed 167 days ago (~6 months)⬇️ Price reduced $7,900,000 (23%) on January 15, 2026
4Beds
6Baths
9,600Sq Ft
1999Built

430 Grand Bay Dr, Key Biscayne FL 33149

MLS #A11915787

About This Property

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.

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Marie I. Sanjurjo
Licensed Broker
Blue Mar Real Estate Group
📞 (305) 680-5672✉️ marie@bluemargroup.com

About Key Biscayne

Key Biscayne is a barrier island community just a bridge ride from Brickell, offering an island lifestyle wrapped around Crandon Park, Cape Florida State Park, and the Crandon Golf Course. The village is known for its safety, top-rated schools, and walkable pace, with residents ranging from young families to international buyers seeking secondary residences. Limited inventory and tight geography keep prices premium relative to mainland Miami.

Explore Key Biscayne📊 Key Biscayne market report

Property Details

Property Type

Condominium

Year Built

1999

Living Area

9,600 sq ft

Bedrooms

4

Bathrooms

6

Pool

No

Waterfront

Yes

Cooling

Electric

Heating

Electric

Flooring

Ceramic Floor

Construction

CBS Construction

Style

Corner Unit, High Rise, Penthouse

HOA Fee

None

Annual Taxes

$153,827 (2024)

Days on Market

154

MLS #

A11915787

Features & Amenities

Interior

Built-in FeaturesCloset CabinetryFire SprinklersEntrance FoyerVolume CeilingsWalk-In Closet(s)Den/Library/OfficeFamily RoomGreat RoomMaid/In-Law QuartersStorageUtility Room/Laundry

Appliances

DishwasherDisposalDryerElectric Water HeaterMicrowaveElectric RangeRefrigeratorWall OvenWasher

Exterior

Open Balcony

Other

Ocean AccessOcean Front2 Or More SpacesGuestValetNo Rv/Boats

Nearby Schools

Assigned public schools pulled from Miami-Dade County Public Schools’s official attendance-boundary data. Verify current boundaries with MDCPS before buying — zones can change year to year.

Assigned Public Schools
Elementary
Key Biscayne K-8 Center
Grades PK-8
150 W McIntire St., Key Biscayne 33149
Middle
Ponce de Leon MS
Grades 6-8
5801 Augusto St., Coral Gables 33146
High
Coral Gables Senior High
Grades 9-12
450 Bird Rd., Coral Gables 33146
Private Schools Within 5 Miles
St Christophers - By-The-Sea Montessori School0.5 mi
95 Harbor Dr, Key Biscayne
St Agnes Academy0.6 mi
122 Harbor Dr, Key Biscayne
Key Biscayne Presbyterian School0.7 mi
160 Harbor Dr, Key Biscayne
Immaculata-La Salle High School4.7 mi
3601 S Miami Ave, Miami
Fisher Island Day School4.8 mi
2 Fisher Island Dr, Miami Beach
La Prima Casa Montessori - Brickell Campus5.0 mi
1770 Brickell Ave, Miami

School data source: Miami-Dade County Open Data Hub

Location

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City

Key Biscayne

State

FL

ZIP Code

33149

County

Miami-Dade County

$26,000,000
430 Grand Bay Dr, Key Biscayne FL 33149
4Beds
6Baths
9,600Sq Ft
📞 (305) 680-5672

Listing provided by Julian Johnston at The Corcoran Group. Data from Miami Association of REALTORS®. All information deemed reliable but not guaranteed. Listing #A11915787.