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430 Grand Bay Dr, Key Biscayne FL 33149

Penthouse For Sale
$26,000,000

BTC: 405.04997616

ETH: 14,748.09125665

-$8M (2026/01/15)
211 days
Waterfront
4 bds
4 ba
9,600 sqft

Overview

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.

Location

Florida • Key Biscayne • 33149 • Penthouse • For Sale • Waterfront

Details

Type:
Residential
Parking:
2 Or More Spaces / Guest / Valet / No Rv/Boats
Year Built:
1999
Lot:
No Data
Heating:
Electric
Price/sqft:
$2,708
Cooling:
Electric
HOA:
No Data

Valuation

Recent sales nearby
30 public-records sales within 0.5 mi
Median actual sale: $2.3M
Not enough MLS comparables for a model estimate on this property. Public-records data shown instead.

Highlights

Annual tax
$153,827
2024
View
Bay, Ocean View
Waterfront
Ocean Access, Ocean Front
Pets
Restrictions Or Possible Restrictions
All facts and features

  • Flooring

    • Ceramic Floor

    Heating

    • Electric

    Cooling

    • Electric

    Appliances

    • Dishwasher

    • Disposal

    • Dryer

    • Electric Water Heater

    • Microwave

    • Electric Range

    • Refrigerator

    • Wall Oven

    • Washer

    Other interior features

    • Built-in Features

    • Closet Cabinetry

    • Fire Sprinklers

    • Entrance Foyer

    • Volume Ceilings

    • Walk-In Closet(s)

    • Den/Library/Office

    • Family Room

    • Great Room

    • Maid/In-Law Quarters

    • Storage

    • Utility Room/Laundry

    Bedrooms and bathrooms

    • Bedrooms: 4

    • Bathrooms: 2

    • Full bathrooms: 4

  • Parking

    • 2 Or More Spaces

    • Guest

    • Valet

    • No Rv/Boats

    Property

    • Exterior Features: Open Balcony

    Other Property Information

    • Parcel Number: 24-52-05-060-0960

  • Type and style

    • Property Type: Residential

    • Property Sub Type: Condominium

  • Other financial information

    • HOA Frequency: Monthly

    • Annual tax amount: $153,827

  • Source details

    • MLS ID: A11915787

    Other facts

    • Construction Materials: CBS Construction

    • Laundry Features: Utility Room/Laundry

    • Patio And Porch Features: Open Balcony

    • Window Features: Blinds

    • Architectural Style: Corner Unit / High Rise / Penthouse

    • Waterfront: Yes

    • Living Area: 9600

    • Subdivision Name: GRAND BAY TOWER CONDO

Private inquiry
Talk to the advisor on this listing.
Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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Market around this address

Live counts in the same area.
View all
This zip
33149
151
median $2.8M
Active
Same city
Key Biscayne
151
median $2.8M
Active
Same type
Penthouse
6
median $18.2M
Active
Similar price
$18.2M – $33.8M
9
median $19.9M
Active

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: The Corcoran Group