445 Grand Bay Drive # 1A, Key Biscayne FL 33149, photo 1
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$18,900,000

CondominiumActive
⏱️ Listed 121 days ago (~4 months)
5Beds
6Baths
8,435Sq Ft
1997Built

445 Grand Bay Drive # 1A, Key Biscayne FL 33149

MLS #A11954185

About This Property

High above the turquoise waters of Key Biscayne rises a penthouse that simply cannot be replicated. Once featured in Architectural Digest, this legendary corner residence at Grand Bay is a statement of scale, design, and presence. From sunrise over the Atlantic to glittering sunsets across Biscayne Bay and the Miami skyline, the views are cinematic in every direction, offering endless blue water, golden light, and exceptional privacy. Spanning an extraordinary 8,435 square feet under air and 2,825 square feet of terraces, totaling 11,260 square feet as per the developer’s floor plan, the residence is defined by soaring 12-foot ceilings and grand proportions throughout. A dramatic foyer leads to a spectacular Grand Room designed for both intimate living and large-scale entertaining. The formal dining room is separate and elegant, while the completely remodeled kitchen and family room provide comfort and functionality. The fully renovated private library and custom bar enhance the home’s entertaining appeal. The primary suite is serene and expansive. All the bathrooms have just been completely remodeled, offering a fresh spa-inspired experience finished to today’s highest standards. Four (4) additional en-suite bedrooms ensure comfort and privacy. The terraces offer expansive outdoor living in the sky, perfect for sunrise mornings and sunset evenings overlooking the water and skyline. This is not simply a penthouse. It is a landmark residence, rare and impossible to duplicate.

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Marie I. Sanjurjo
Licensed Broker
Blue Mar Real Estate Group
📞 (305) 680-5672💬 WhatsApp Marie✉️ [email protected]

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

1997

Living Area

8,435 sq ft

Bedrooms

5

Bathrooms

6

Pool

No

Waterfront

Yes

Cooling

Electric

Heating

Electric

Flooring

Carpet, Marble, Wood

Construction

CBS Construction

Style

Corner Unit, High Rise, Penthouse

HOA Fee

None

Annual Taxes

$54,141 (2025)

Days on Market

112

MLS #

A11954185

Features & Amenities

Interior

Built-in FeaturesCloset CabinetryEntrance FoyerPantryVolume CeilingsWalk-In Closet(s)Wet BarDen/Library/OfficeFamily RoomGreat Room

Appliances

DishwasherDisposalDryerElectric Water HeaterIce MakerMicrowaveElectric RangeRefrigeratorWall OvenWasher

Exterior

Open Balcony

Other

Ocean AccessOcean Front2 Or More SpacesCoveredValetNo Rv/BoatsNo Trucks/Trailers

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 School4.9 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

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Location

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City

Key Biscayne

State

FL

ZIP Code

33149

County

Miami-Dade County

$18,900,000
445 Grand Bay Drive # 1A, Key Biscayne FL 33149
5Beds
6Baths
8,435Sq Ft
📞 (305) 680-5672💬 WhatsApp
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445 Grand Bay Drive # 1A, Key Biscayne FL 33149$18,900,000

Listing provided by Brigitte Nachtigall at One Sotheby's International Realty. Data from Miami Association of REALTORS®. All information deemed reliable but not guaranteed. Listing #A11954185.