445 Grand Bay Drive PH-1A, Key Biscayne, FL 33149 (MLS# A11954185)

445 Grand Bay Drive PH-1A, Key Biscayne, FL 33149

$18,900,000

Property Type: Residential Bedrooms: 5 Baths: 6 Square Footage: 11,260 Status: Active

Current Price: $18,900,000 List Date: 2/14/2026 Last Modified: 8/13/2026

Overview

Description

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 ... (Read more)

Listing Details MLS# A11954185

General Property Information

Total Units In Building: 138
Unit Floor #: 14
Property Sub Type: Condominium
Bedrooms Total: 5
Bathrooms Total: 6
Bathrooms Full: 5
Bathrooms Half: Yes
Building Area Main: 11260
Living Area Main: 8435
Year Built: 1997
Senior Community YN: Yes
Waterfront YN: Yes
Outdoor Living Spaces YN: Yes
Stories Total: 14
Stories: Yes
Direction Faces: East
Furnished: Unfurnished

Property Features

Application Information: 1-2 Weeks Approval; Association Approval Required Association Fee Includes: Cable TV; Common Areas; Maintenance Grounds; Security; Sewer; Water Dining Area: Breakfast Area; Eat-In Kitchen; Formal Dining Electric: Fuses Flooring: Carpet; Marble; Wood Leasing Permitted Details: Okay To Lease Parking Features: Covered; Garage Door Opener; Valet Property Condition: Resale Appliances: Dishwasher; Disposal; Dryer; Electric Range; Ice Maker; Microwave; Oven; Refrigerator; Washer Water Heater Details: Electric Water Heater Construction Materials: CBS Association Type: Condominium Heating: Electric Interior Features: Built-in Features; Closet Cabinetry; Entrance Foyer; High Ceilings; Pantry; Walk-In Closet(s); Wet Bar Listing Terms: Cash; Conventional Pets Allowed YN: Yes Pets Allowed: Pet Restrictions Possible Possession: Negotiable Restrictions: Parking - No RV; Parking - No Trailer; Parking - No Truck Security Features: Elevator Secure; Fire Alarm; Secured Garage/Parking; Security Guard; Smoke Detector(s) Special Information: Flood Zone; Sold As-Is Unit Description: Corner/End Unit; Penthouse; High Rise Utilities: Cable Available Water Access: Deeded Beach Access; Ocean Access Water View: Bay; Direct Ocean; Ocean Waterfront Features: Ocean Front Window Features: Blinds; Drapes; Rods Showing Requirements: Call Listing Agent Outdoor Living Spaces: Balcony Balcony Details: Balcony - Open Room Types: Den; Family Room; Great Room

Contract Information

Comp Sale YN: No
Original List Price: 18900000
Occupant Type: Vacant

Location and Legal

Country: United States
County Or Parish: Miami-Dade
County Parish Name: Miami-Dade
Street Number: 445
Street Name: Grand Bay
Street Suffix: Drive
Unit Number: PH-1A
City Name: Key Biscayne
Municipal Code: 24
State Or Province: FL
Postal Code: 33149
Postal Code +4: 1905
Postal Zip: 33149
Subdivision Name: GRAND BAY RESIDENCES COND
Development Name: GRAND BAY
Area: 2520
Elementary School: Key Biscayne K-8
Middle Or Junior School: Ponce De Leon
High School: Coral Gables
Special Assessment YN: No
Parcel Number: 2452050491350
Subdivision Number: 49
Flood Zone: AE
Building Name: 445

Financial Information

Association YN: Yes
Association Fee: 9923
Association Fee Frequency: Monthly
Application Required YN: Yes
Estimated Monthly Assoc Recurring Fee: 9923
Membership Fee Required YN: No
Tax Annual Amount: 54141
Tax Year: 2025
Tax Legal Description: GRAND BAY RESIDENCES CONDO UNIT PH-1A UNDIV 1.7892% INT IN COMMON ELEMENTS OFF REC 17374-0773 OR 17905-3465 1297 1

Status Change Information

Major Change Timestamp: 2026-02-14T05:00:00Z
Major Change Type: New Listing
Status Change Date: 2026-02-14

More Information

Application Fee Details

Application Fee Required: Yes
Application Fee: 150

Leasing Permitted Details

Leasing Permitted YN: Yes

Parking Information

Open Parking Spaces: 2
Parking Space Number: 3

Leasing Restrictions

Leasing - Max Times Per Year: 2
Leasing - Minimum Number of Days: 180

Storm Protection

Impact Glass: Partial

Price Calculations

Current Price To SqFt: 2240.66

Section Details

Parcel Number MLX: 1350

Originating Details

Originating System Key: 426001073
Originating System ID: M00000151

Room Information

Room Name
Den
Family Room
Great Room

Listing Office: One Sotheby's International Realty

Last Updated: August - 13 - 2026

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