$18,900,000

Grand Bay Residences 445 Grand Bay Dr Unit PH1A Floor 14 Key Biscayne, FL 33149

Key Biscayne Area

Estimated payment $117,416/month

Total Views 13,870
5 Beds
5.5 Baths
8,435 Sq Ft
$2,241 Price per Sq Ft

Highlights

  • Valet Parking
  • Ocean Front
  • Active Adult
  • Deeded Waterfront Access Rights
  • Fitness Center
  • Clubhouse

About This Home

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.

Listing Agent

Brigitte Nachtigall

One Sotheby's International Realty License #0542022 Listed on: 02/14/2026

One Sotheby's International Realty

Co-Listing Agent

Jorge Boj

One Sotheby's International Realty License #3016066

Property Details

Home Type

  • Condominium

Est. Annual Taxes

  • $54,141

Year Built

  • Built in 1997

Lot Details

  • Ocean Front
  • East Facing Home

HOA Fees

  • $9,923 Monthly HOA Fees

Property Views

  • Ocean
  • Bay

Home Design

  • Entry on the 14th floor

Interior Spaces

  • 8,435 Sq Ft Home
  • Wet Bar
  • Built-In Features
  • High Ceiling
  • Drapes & Rods
  • Blinds
  • Entrance Foyer
  • Formal Dining Room

Kitchen

  • Breakfast Area or Nook
  • Eat-In Kitchen
  • Oven
  • Electric Range
  • Microwave
  • Ice Maker
  • Dishwasher
  • Disposal

Flooring

  • Wood
  • Carpet
  • Marble

Bedrooms and Bathrooms

  • 5 Bedrooms
  • Primary Bedroom on Main
  • Closet Cabinetry
  • Walk-In Closet
  • Bidet
  • Dual Sinks
  • Separate Shower in Primary Bathroom
  • Soaking Tub

Laundry

  • Dryer
  • Washer

Home Security

Parking

  • Garage
  • 2 Open Parking Spaces
  • Garage Door Opener
  • Secured Garage or Parking

Outdoor Features

  • Deeded Waterfront Access Rights
  • Property has ocean access
  • Beach Access
  • Balcony
  • Open Patio
  • Outdoor Living Area

Schools

  • Key Biscayne K-8 Elementary School
  • Ponce De Leon Middle School
  • Coral Gables High School

Utilities

  • Cooling Available
  • Heating Available
  • Electric Water Heater
  • Cable TV Available

Listing and Financial Details

  • Assessor Parcel Number 2452050491350

Community Details

Overview

  • Active Adult
  • Association fees include common areas, cable TV, ground maintenance, sewer, security, water
  • Grand Bay Residences Cond Subdivision
  • 1-Story Property

Amenities

  • Valet Parking
  • Clubhouse
  • Bike Room

Recreation

  • Community Pool

Pet Policy

  • Pets Allowed with Restrictions

Security

  • Security Guard
  • Resident Manager or Management On Site
  • Secure Elevator
  • Fire and Smoke Detector

Property Details

Home Type

Condominium

Est. Annual Taxes

$54,141

Year Built

Built in 1997

Lot Details

0 Sq Ft Lot

HOA Fees

$9,923 per month

Listing Details

  • Prop. Type: Residential
  • Property Sub Type: Condominium
  • Property Sub Type Additional: Condominium
  • Year Built: 1997
  • Entry Level: 14
  • Unit Levels: One
  • New Construction: No
  • Building Stories: 1
  • DelayedMarketingYN: No
  • Special Features: None
  • Stories: 1

Interior Features

  • Interior Amenities: Wet Bar, Bidet, Built-in Features, Breakfast Area, Bathtub, Closet Cabinetry, Dining Area, Separate/Formal Dining Room, Dual Sinks, Entrance Foyer, Eat-in Kitchen, High Ceilings, Main Level Primary, Pantry, Soaking Tub, Separate Shower, Walk-In Closet(s)
  • Furnished: Unfurnished
  • Appliances: Dryer, Dishwasher, Electric Range, Electric Water Heater, Disposal, Ice Maker, Microwave, Oven, Refrigerator, Washer
  • Full Bathrooms: 5
  • Half Bathrooms: 1
  • Total Bedrooms: 5
  • Flooring: Carpet, Marble, Wood
  • Living Area: 8435.0
  • Stories: 14
  • Window Features: Blinds, Drapes, Rods

Exterior Features

  • Exterior Features: Balcony, Outdoor Living Area
  • View: Bay, Ocean
  • Pool Features: Association
  • View: Yes
  • Waterfront Features: Beach Access, Deeded Access, Ocean Access, Ocean Front
  • Waterfront: Yes
  • Disclosures: Flood Plain Disclosure
  • Construction Type: Block
  • Direction Faces: East
  • Patio And Porch Features: Open, Balcony
  • Property Condition: Resale

Garage/Parking

  • Open Parking Spaces: 2.0
  • Garage Yn: No
  • Parking Features: Covered, Garage, Garage Door Opener, Valet

Utilities

  • Security: Elevator Secured, Fire Alarm, Secured Garage/Parking, Smoke Detector(s), Security Guard
  • Cooling: Electric
  • Cooling Y N: Yes
  • Heating: Electric
  • Heating Yn: Yes
  • Electric: Fuses
  • Utilities: Cable Available

Condo/Co-op/Association

  • Association Fee: 9923.0
  • Pets Allowed: Yes
  • Senior Community: Yes
  • Amenities: Bike Storage, Clubhouse, Fitness Center, Management, Pool
  • Association Fee Frequency: Monthly
  • Association: Yes
  • Pets Allowed: Pet Restrictions, Yes
  • Common Interest: Condominium

Fee Information

  • Association Fee Includes: Common Areas, Cable TV, Maintenance Grounds, Sewer, Security, Water

Schools

  • Elementary School: Key Biscayne K-8
  • High School: Coral Gables
  • Middle Or Junior School: Ponce De Leon

Lot Info

  • Parcel #: 2452050491350
  • Mobile Dim Units: Feet

Tax Info

  • Tax Year: 2025
  • Tax Annual Amount: 54141.0

Map

About Grand Bay Residences

Range of Values:

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Value Increase
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Percent Increase
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Adjusted for Inflation
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Home Values in the Area

Source: Public Records

Average Home Value in this Area

Source: Public Records

Tax History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Year Tax Paid Tax Assessment Tax Assessment Total Assessment is a certain percentage of the fair market value that is determined by local assessors to be the total taxable value of land and additions on the property. Land Improvement
2025 $129,559 $8,365,000
2024 $133,167 $8,365,000
2023 $133,167 $8,365,000 $0 $0
2022 $54,649 $3,465,817 $0 $0
2021 $54,926 $3,364,871 $0 $0
2020 $54,141 $3,318,414 $0 $0
2019 $53,041 $3,243,807 $0 $0
2018 $50,350 $3,183,324 $0 $0
2017 $49,734 $3,117,850 $0 $0
2016 $49,851 $3,053,722 $0 $0
2015 $50,594 $3,032,495 $0 $0
2014 $51,361 $3,008,428 $0 $0
Source: Public Records

Property History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Event Price List to Sale Price per Sq Ft Prior Sale
02/14/2026 02/14/26 For Sale $18,900,000 +66.2% $2,241 / Sq Ft
03/09/2022 03/09/22 Sold $11,375,000 -18.0% $1,349 / Sq Ft View Prior Sale
12/13/2021 12/13/21 Pending -- -- --
10/09/2021 10/09/21 For Sale $13,870,000 -- $1,644 / Sq Ft
Source: BeachesMLS (Greater Fort Lauderdale)

Purchase History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Type Sale Price Title Company
Warranty Deed $11,375,000 Rodriguez Oscar J
Warranty Deed -- Heller Espenkotter Pllc
Deed $2,240,000 --
Source: Public Records

Mortgage History

We collect this data history from publicly available records. To have your information removed, we recommend requesting removal directly through your county’s website.

Date Status Loan Amount Loan Type
Open $8,531,250 New Conventional
Previous Owner $920,000 New Conventional
Source: Public Records

Source: BeachesMLS (Greater Fort Lauderdale)

MLS Number: A11954185

BeachesMLS (Greater Fort Lauderdale)

APN: 24-5205-049-1350

Florida Miami/Dade County Key Biscayne 33149

445 Grand Bay Dr Unit PH1A, Key Biscayne, FL

Disclaimer: Certain information contained herein is derived from information provided by parties other than Homes.com. All information provided is deemed reliable, but is not guaranteed to be accurate and should be independently verified.

BeachesMLS (Greater Fort Lauderdale) All listings featuring the BMLS logo are provided by Beaches MLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright 2026 Beaches Multiple Listing Service, Inc. Information is provided exclusively for consumers' personal, non-commercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing.

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Brigitte Nachtigall
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