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430 Grand Bay Dr # 801, Key Biscayne FL 33149

Condo/Co-op For Sale
$6,900,000

BTC: 113.11475410

ETH: 4,181.81818182

95 days
Waterfront
2 bds
3 ba
3,950 sqft

Overview

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.

Location

Details

Type:
Residential
Parking:
2 Or More Spaces / Valet
Year Built:
1999
Lot:
No Data
Heating:
Electric
Price/sqft:
$1,747
Cooling:
Central Air
HOA:
$4,398

Valuation

Our model vs. what's actually selling nearby.
Estimate
$5,100,000
$3.2M – $5.9M
Confidence Low
List vs. estimate
$1.8M above estimate
List $6,900,000 · +35.3%
Our model says this listing is priced above recent comparable activity. Room to negotiate.
Price per sq ft
$1,746
+81.1% vs. city median $964
Based on
9 MLS comparables
+ 30 public-records sales within 0.5 mi
Median actual sale: $2.3M
Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax
$131,192
2025
HOA
$4,398/mo
View
Ocean View, Direct Ocean
Waterfront
Ocean Access, Ocean Front
Garage
2 car garage
Pets
Restrictions Or Possible Restrictions
All facts and features
  • Heating

    • Electric

    Cooling

    • Central Air

    Appliances

    • Dishwasher

    • Disposal

    • Dryer

    • Electric Water Heater

    • Microwave

    • Electric Range

    • Refrigerator

    Other interior features

    • Lobby

    • Closet Cabinetry

    • Cooking Island

    • Fire Sprinklers

    • Entrance Foyer

    • Laundry Tub

    • Chandelier To Be Replaced

    • Walk-In Closet(s)

    • Family Room

    • Media Room

    • Storage

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 2

    • Bathrooms: 1

    • Full bathrooms: 3

  • Parking

    • 2 Or More Spaces

    • Valet

    Property

    • Exterior Features: Open Balcony

    Other Property Information

    • Parcel Number: 24-52-05-060-0080

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Condominium

  • Other financial information

    • HOA: $4,398

    • HOA Frequency: Monthly

    • Annual tax amount: $131,192

  • Source details

    • MLS ID: A11973615

    Other facts

    • Construction Materials: CBS Construction

    • Laundry Features: Laundry Tub / Utility Room/Laundry

    • Patio And Porch Features: Open Balcony

    • Window Features: Electric Shutters / Hurricane Shutters

    • Direction Faces: East

    • Architectural Style: Corner Unit / High Rise

    • Waterfront: Yes

    • Garage Spaces: 2

    • Garage: Yes

    • Living Area: 3950

    • Subdivision Name: GRAND BAY TOWER CONDO

Private inquiry
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The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: Coldwell Banker Realty