430 Grand Bay Dr # 801, Key Biscayne FL 33149 | Miami-Dade County | A11973615
- $6,900,000
- Condominium
- 2
- 3.5
- 2
- 3950 Sq Ft
- $6,900,000
Description
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.
Property Overview
This is a 2-bedroom, 3.5-bath home of about 3950 square feet at 430 Grand Bay Dr # 801, Key Biscayne FL 33149 (Key Biscayne 33149), listed at $6,900,000.
Monthly Costs, Stated Plainly
The monthly HOA fee is $4,398.
The tax of record is $131,192 (2025). As an ESTIMATE ONLY — Florida reassesses at sale — at this price and a Miami-Dade rate near 2.0%: without homestead, about $138,000/yr (≈ $11,500/mo); with the homestead exemption on a primary residence, about $137,000/yr (≈ $11,417/mo). Confirm with the Miami-Dade Property Appraiser and a tax professional — these are estimates, not quotes.
Frequently Asked Questions
What is the list price, and what typically conveys with a home like this?
The list price for 430 Grand Bay Dr # 801 is $6,900,000. Fixtures and built-in appliances generally convey with the home, though the MLS record does not state if the property is furnished; you must confirm which specific items are included.
Shared community amenities include a heated pool, pool, exercise room, and bike storage, which are separate from the home's private assets. Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify the final inventory.
Where exactly is it, and what should I know about the location?
This property is located at 430 Grand Bay Dr # 801, Key Biscayne FL 33149, situated within the coastal corridor of Key Biscayne 33149. The residence is listed at $6,900,000 and offers 2 bedrooms and 3.5 bathrooms across approximately 3950 sqft.
Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify specific location details.
What are the HOA / association fees, and what do they cover?
The monthly HOA fee is $4,398. This payment covers All Amenities, Common Area, Fidelity Bond, and Pool Service.
The community is subject to city ordinances found at https://library.municode.com/fl/key_biscayne/codes/code_of_ordinances . Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify these details.
What are the property taxes and homestead implications?
The tax of record is $131,192 (2025). As an ESTIMATE ONLY, Florida reassesses at sale; at this price and a Miami-Dade rate near 2.0%, the annual cost is about $138,000/yr (≈ $11,500/mo) without homestead, or about $137,000/yr (≈ $11,417/mo) with the homestead exemption on a primary residence. Florida's homestead exemption lowers taxable value only for a primary residence.
Confirm these figures with the Miami-Dade Property Appraiser and a tax professional, as these are estimates, not quotes. Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify.
Is the home in a flood zone, and what does that mean?
Flood zones designate areas with varying levels of risk for flooding, as defined by FEMA definitions. Lenders often require flood insurance for properties located in high-risk zones. View the FEMA flood map for this address to see the specific designation for 430 Grand Bay Dr # 801.
Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify these details.
Are pets allowed?
As a single-family home, 430 Grand Bay Dr # 801 has no condo or HOA board to dictate pet rules. Pets are at the owner's discretion, subject to city and county ordinances or any existing lease. Documented service animals and ESAs carry separate federal protections.
Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify specifics.
How is the price set and is there room to negotiate?
The list price of $6,900,000 reflects current market conditions. Miami-Dade single-family homes have recently been closing at 95% of original list, around 41 days to contract (MIAMI REALTORS®, May 2026).
The specific valuation for 430 Grand Bay Dr # 801 comes from a CMA. I will provide a Key Biscayne-specific CMA to ensure your offer is precise. Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify these details.
What financing step do you recommend before touring?
Secure a pre-approval from a licensed Florida mortgage professional before touring 430 Grand Bay Dr # 801. This ensures your financial capacity aligns with the $6,900,000 list price. Contact Christopher Lazaro, Key Biscayne Real Estate Broker Associate, to verify these requirements.
Monthly Fees & Carrying Costs
| Association Fee | $4,398 / month |
| Total Monthly Fees | $4,398 / month |
- Membership Required: No
- Application Fee: $100 (one-time)
Have a question about this Key Biscayne listing?
Talk directly with Christopher Lazaro, your Key Biscayne real estate advisor. No pressure — real answers.
Address
Open on Google Maps-
Address: Grand Bay Dr
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City: Key Biscayne
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State/county: Miami-Dade County
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Zip/Postal Code: 33149
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Area: GRAND BAY TOWER CONDO
Details
Updated on August 13, 2026 at 1:39 pm-
Property ID A11973615
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Price $6,900,000
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Property Size 3950 Sq Ft
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Bedrooms 2
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Room 0
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Bathrooms 3.5
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Garages 2
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Year Built 1999
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Type Condominium
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Property Status Active, Residential
Additional details
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Waterfront Features Ocean Access, Ocean Front
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Bedroom Features Primary Bath Shower, Primary Bath Tub, Sitting Area - Primary Bedroom
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Cooling Central Air
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Association Type Condo, Homeowners
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Building Grand Bay
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Association Fee Frequency Monthly
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Area Grand Bay Tower Condo
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Annual Tax 131192
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Association Yes
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Elementary School Keybiscayne
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Private Pool No
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Listing Terms All Cash, Conventional
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Waterfront Yes
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Full Bathrooms 3
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Subdivision GRAND BAY TOWER CONDO
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Total Stories 13
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Restrictions Daily Rentals Allowed, No Trucks/Rv'S
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Maintenance Includes All Amenities, Common Area, Fidelity Bond, Pool Service
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Amenities Bike Storage, Exercise Room, Heated Pool, Pool
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Parking 2 Or More Spaces, Valet
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Heating Electric
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Structure Type Condo 5+ Stories, Condo
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Tax Year 2025
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Construction CBS Construction
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Building Area 3950
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Covered Spaces 2
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Middle School Ponce De Leon
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Unit Floor 8
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View Ocean View, Direct Ocean
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Year Built Details Resale
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High School Coral Gables
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Pets Allowed Yes
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Attached Yes
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Unit Number 801
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Inclusions Unrestricted Salt Water Access
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Half Bathrooms 1
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Flood Zone AE
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Patio / Porch Open Balcony
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New Construction No
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Garage Spaces 2
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Style Condo 5+ Stories
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Association Fee 4398
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Lot Size (Sq Ft) 0
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Membership Purchase Required No
Features
- Chandelier To Be Replaced
- Closet Cabinetry
- Cooking Island
- Dishwasher
- Disposal
- Dryer
- Electric Range
- Electric Water Heater
- Entrance Foyer
- Family Room
- Fire Sprinklers
- Has a View
- Has Cooling System
- Has Garage
- Has Heating System
- Has Waterfront
- Home Owners Association
- Laundry Tub
- Lobby
- Media Room
- Microwave
- Open Balcony
- Property Attached
- Refrigerator
- Storage
- Utility Room/Laundry
- Walk-In Closet(s)
Mortgage Calculator
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