420 Island Dr, Key Biscayne FL 33149 | Miami-Dade County | A11812864
- $12,485,000
- $12,485,000
Description
Spectacular and impeccably appointed modern residence situated on a 13,651 SF lot on prestigious Island Drive—one of Key Biscayne’s most elevated streets. Boasting a total of 8,011 SF, this 6-bedroom, 6 full bath + 2 half bath home is open, bright, and flooded with natural light throughout. Enjoy breathtaking water views and private access to the water in a setting that blends refined luxury with ultimate privacy. This residence showcases exquisitely curated, high-end designer finishes, a dramatic wine cellar, two expansive family rooms, and a closed 2-car garage. The outdoor living area is equally impressive, featuring a sleek summer kitchen and lush, professionally designed landscaping—ideal for elegant island living and entertaining. Per approved plans 6,405 SF under AC -8,682 SF Total
Property Overview
This is a 6-bedroom, 7-bath home of about 6405 square feet at 420 Island Dr, Key Biscayne FL 33149 (Key Biscayne 33149), listed at $12,485,000.
Monthly Costs, Stated Plainly
This home has no mandatory HOA (single-family / no association on record).
The tax of record is $88,746 (2024). As an ESTIMATE ONLY — Florida reassesses at sale — at this price and a Miami-Dade rate near 2.0%: without homestead, about $249,700/yr (≈ $20,808/mo); with the homestead exemption on a primary residence, about $248,700/yr (≈ $20,725/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 the property at 420 Island Dr, Key Biscayne FL 33149 is $12,485,000. This 6 bedroom, 7 bathroom home, spanning approximately 6405 square feet, is listed without explicit mention of being furnished, meaning that only the fixtures and built-in appliances are expected to convey with the sale. A private In Ground, Fenced pool is included with the property. It's essential to note that while the home itself includes certain amenities, such as the private pool, other community or on-site amenities are shared and managed by the HOA, and their specifics can be confirmed upon request.
To verify the details of what conveys with the home, including any potential furnishings or community amenities, it's advisable to reach out to Christopher Lazaro, Key Biscayne Real Estate Broker. He can provide a detailed breakdown of the property's features and guide you through the process of making an informed decision. Contact Christopher Lazaro to schedule a viewing or to discuss the property further, ensuring you have all the necessary information to proceed with confidence.
Where exactly is it, and what should I know about the location?
The property at 420 Island Dr is located in Key Biscayne, FL 33149, situated along the coastal corridor of Key Biscayne. This location is distinct due to its island setting, which can impact various aspects of ownership and living conditions. The property itself is listed at $12,485,000, featuring 6 bedrooms and 7 bathrooms within approximately 6405 square feet of living space.
To understand the specifics of this location and how it might suit your needs, it's essential to consult with a local expert. For detailed information and to verify the property's details, consider reaching out to Christopher Lazaro, Key Biscayne Real Estate Broker, who can provide insights tailored to your interests and requirements, helping you make an informed decision about this significant investment at 420 Island Dr, Key Biscayne, FL 33149.
What are the HOA / association fees, and what do they cover?
The property at 420 Island Dr, Key Biscayne FL 33149, listed at $12,485,000, does not have a mandatory HOA, as it is a single-family home with no association on record. This means the owner is responsible for handling their own utilities and upkeep. Although there is no HOA, the property is still subject to city ordinances, which can be found in the municipal code.
To verify the details of this property and understand the responsibilities that come with ownership, contact Christopher Lazaro, Key Biscayne Real Estate Broker, to schedule a consultation and review the property's specifications, including its ~6405 sqft of living space and 6bd/7ba layout.
What are the property taxes and homestead implications?
The property taxes for 420 Island Dr, Key Biscayne FL 33149, listed at $12,485,000, can be estimated in two ways. As an ESTIMATE ONLY, considering the Miami-Dade rate near 2.0%, the annual property tax would be about $249,700/yr (≈ $20,808/mo) without homestead, and about $248,700/yr (≈ $20,725/mo) with the homestead exemption, which lowers the taxable value only for a primary residence. The tax of record is $88,746 (2024), but Florida reassesses at sale, so these figures are estimates, not quotes.
It is essential to confirm these estimates with the Miami-Dade Property Appraiser and a tax professional. To verify the details and get a more accurate understanding of the property taxes and homestead implications for this 6bd/7ba, ~6405 sqft property, we recommend reaching out to Christopher Lazaro, Key Biscayne Real Estate Broker, to discuss your specific situation and get personalized guidance on this $12,485,000 listing.
Is the home in a flood zone, and what does that mean?
The property at 420 Island Dr, Key Biscayne, FL 33149, listed at $12,485,000, is located in a area that buyers should investigate for flood zone designation. Flood zones are areas that the Federal Emergency Management Agency (FEMA) has identified as being at risk for flooding, and they are categorized based on the level of risk. For more information on flood zones, visit the FEMA definitions page. Buyers can also View the FEMA flood map for this address to determine the specific flood zone designation for this property.
Lenders often require flood insurance for properties located in high-risk flood zones, which can impact the cost of owning the property. To verify the flood zone designation and understand any potential implications for ownership, buyers should contact Christopher Lazaro, Key Biscayne Real Estate Broker, to discuss the details of this property and determine the best course of action for their specific situation.
Are pets allowed?
As a single-family home, 420 Island Dr in Key Biscayne, listed at $12,485,000, does not have a governing board that dictates pet policies. Instead, pet ownership is at the owner's discretion, subject to city and county ordinances, as well as any lease that may be in place. This means that the owner has the freedom to decide whether or not to allow pets on the property. Documented service animals and ESAs carry separate federal protections. To verify the specifics of pet ownership for this 6 bedroom, 7 bathroom, ~6405 square foot property, contact Christopher Lazaro, Key Biscayne Real Estate Broker, to discuss your individual circumstances and get a clearer understanding of what is possible.
How is the price set and is there room to negotiate?
Miami-Dade single-family homes have recently been closing at 95% of original list, around 41 days to contract, according to MIAMI REALTORS®, May 2026. This market statistic provides a general indication of the negotiability of prices in the area. However, the specific price of 420 Island Dr, listed at $12,485,000, may be influenced by factors such as the property's unique features and the local Key Biscayne market. A more precise assessment of the property's value can be obtained through a Comparative Market Analysis (CMA) that takes into account the specific characteristics of the building and its vicinity. To get a better understanding of the property's value and to discuss potential negotiation strategies, it is recommended to review a Key Biscayne-specific CMA before setting an offer.
For a more detailed analysis and to verify the current market conditions, buyers are advised to reach out to Christopher Lazaro, Key Biscayne Real Estate Broker, to schedule a consultation and discuss the best approach to purchasing 420 Island Dr, a 6bd/7ba ~6405 sqft property in the desirable Key Biscayne area.
What financing step do you recommend before touring?
To ensure a smooth home buying process, it's essential to get pre-approved for a mortgage before touring properties like 420 Island Dr, Key Biscayne FL 33149. This step helps you understand your budget and makes you a more competitive buyer. Speaking with a Florida-licensed Mortgage Loan Originator (MLO) can guide you through this process; you can start by visiting https://Get-PreApproved.com to get pre-approved. Given the property's listing price of $12,485,000 and its substantial size of ~6405 sqft with 6 bedrooms and 7 bathrooms, securing financing is crucial. To verify the property's details and discuss your options, contact Christopher Lazaro, Key Biscayne Real Estate Broker, to schedule a consultation and explore how to proceed with your purchase.
Monthly Fees & Carrying Costs
- Membership Required: No
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: Island 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: CAPE FLORIDA SUB SEC 1
Details
Updated on September 20, 2026 at 1:39 am-
Property ID A11812864
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Price $12,485,000
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Property Size 6405 Sq Ft
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Bedrooms 6
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Room 0
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Bathrooms 7
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Garage 0
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Year Built 2017
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Type Single Family Residence
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Property Status Active, Residential
Additional details
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View Canal
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Cooling Central Air
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Heating Central
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Tax Year 2024
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Flooring Marble
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Inclusions Dock Available
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Building CAPE FLORIDA SUB SEC 1
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Garage Spaces 0
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Listing Terms All Cash, Conventional
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Area Cape Florida Sub Sec 1
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Waterfront Yes
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Association No
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Full Bathrooms 6
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Half Bathrooms 2
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Covered Spaces 1
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Style WF/Pool/Ocean Access
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Private Pool No
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Structure Type House
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Parking Covered, Golf Cart Parking
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Subdivision CAPE FLORIDA SUB SEC 1
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Annual Tax 88746
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Year Built Details Resale
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Building Area 8682
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Lot Size (Sq Ft) 13651
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Flood Zone AE
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New Construction No
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Waterfront Features Ocean Access, Canal Front
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Bedroom Features At Least 1 Bedroom Ground Level, Sitting Area - Primary Bedroom
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Restrictions Other Restrictions
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Construction CBS Construction
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Association Type None
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Membership Purchase Required No
Features
- Built-in Features
- Chandelier To Be Replaced
- Cooking Island
- Custom Mirrors
- Electric Water Heater
- First Floor Entry
- Has a View
- Has Cooling System
- Has Heating System
- Has Waterfront
- Ice Maker
- Laundry Tub
- Microwave
- Other
- Pantry
- Refrigerator
- Self Cleaning Oven
- Split Bedroom
- Vaulted Ceiling(s)
- Volume Ceilings
- Walk-In Closet(s)
- Wall Oven
- Washer
Mortgage Calculator
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