425 Harbor Dr

Key Biscayne, FL
$ 7,450,000 Beds 7 Baths 8 Sq 4,565 Virtual Tour
Monthly Estimate* How much can I afford?

Discover this striking contemporary residence, perfectly positioned on an oversized 9,258 SF lot on Harbor Drive, one of Key Biscayne’s most elegant and prestigious streets. Built in 2020, this architectural masterpiece offers 6 bedrooms plus a private office, 7 full baths, and 2 powder rooms across 4,565 SF of beautifully designed living space. Filled with natural light, the home showcases expansive open living areas, impressive volume throughout, and a sleek custom kitchen featuring bespoke cabinetry and top-of-the-line finishes. An elevator provides seamless access to all three levels, culminating in a spectacular rooftop terrace with captivating island views and refreshing bay breezes…a unique advantage of being just moments from the water. Designed for effortless indoor-outdoor living, the exterior features a resort-style saltwater pool and spa, summer kitchen, cabana bath, and generous entertaining areas surrounded by lush tropical landscaping. Additional highlights include , EV charger, and ample driveway parking. Combining exceptional design, comfort, and functionality, this residence embodies the very best of island living in one of Key Biscayne’s most distinguished locations. Just minutes from Miami, Key Biscayne is a hidden island paradise where pristine beaches, world-class outdoor recreation, and a relaxed yet sophisticated lifestyle come together in a way that few places can match.

Active

  • Price
  • $ 7,450,000
  • City
  • Key Biscayne
  • Bedrooms
  • 7
  • Full Bathrooms
  • 7
  • County
  • Miami-Dade
  • Half Bathrooms
  • 2
  • Area
  • 42
  • Lot Size
  • Zip
  • 33149
  • Sqr Footage
  • 4,565
  • Year Built
  • 2020
  • Taxes
  • $ 89673
  • Style
  • MLS#
  • A12034564
Listed By: This listing is courtesy of One Sotheby's International Realty
Data Source: Southeast Florida MLS (SEFMLS)

Features

General

Sewer Public Sewer
Heating Central,Electric
Cooling Central Air
Possession Closing & Funding,Close Of Escrow
Roof Flat
Appliances Built-In Oven,Dryer,Dishwasher,Electric Range,Disposal,Microwave,Refrigerator,Wine Cooler,Washer
Garage Spaces 1
Patio/Porch Features Balcony,Deck,Open
Pool Features Heated,In Ground,Pool
Security Features Smoke Detector(s)
Restrictions Other Restrictions
Construction Materials Block
Year Built 2020
View Other
Levels Three Or More
Property Subtype Single Family Residence
Tax Year 2025
Community Features Other,See Remarks
Accessibility Accessible Elevator Installed
County Miami-Dade
Property Type Residential
Subdivision Name TROPICAL ISLE HOMES SUB 3
Facing Direction West
Garage Y/N true
Full Baths 7
Special Listing Conditions Listed As-Is
Status Active
High School Coral Gables
City Key Biscayne
Senior Community Y/N false
Zoning Description 0100
MLS Area 42
Lot Size Units Square Feet
Lot Size Square Feet 9258
Carport Spaces 2
Carport Y/N true
Listing Terms Cash,Conventional
Elementary School Keybiscayne
Year Built Details Effective Year Built
Tax Annual Amount 89673
Middle/Junior High School Ponce De Leon
Lease Considered Y/N false
Virtual Tour https://vimeo.com/1227819955?share=copy&fl=sv&fe=ci
Standard Status Active
Occupancy Type Call Agent
Property Sub Type Additional Single Family Residence
PostalCity Key Biscayne
Legal Description 32 54 42 & 5-6 55 42 PB 50-83 TROPICAL ISLE HOMES SUB 3RD ADDN LOT 16 BLK 13 LOT SIZE 9258.00 SQ FT COC 22279-1992 05 2004 1

Interior Features

Interior Amenities Built-in Features,Bedroom on Main Level,Breakfast Area,Closet Cabinetry,Dining Area,Separate/Formal Dining Room,Dual Sinks,First Floor Entry,High Ceilings,Kitchen Island,Kitchen/Dining Combo,Shower Only,Walk-In Closet(s),Elevator
Flooring Hardwood,Wood
Furnished Y/N Unfurnished
Air Conditioning Y/N true
Heating Y/N true
Window Features Impact Glass
Half Baths 2
Laundry Features In Garage
Total Bedrooms 7
Total Baths 9

Exterior Features

Exterior Amenities Balcony,Deck,Fence,Security/High Impact Doors,Outdoor Grill,Outdoor Shower
Parking Features Attached Carport,Covered,Driveway,Electric Vehicle Charging Station(s),Other
Lot Features < 1/4 Acre
Water Source Public
Lot Size Area 9258
Foundation Details Raised
Spa true
Building Area Total 6092
Private Pool true
Waterfront Y/N false
Covered Spaces 3

Amenities

  • Foreclosure
  • Views
  • Short Sale
  • New Construction
  • Adult 55+
  • Lease To Own
  • No HOA Fees
  • Furnished
  • Primary On Main
  • Air Conditioning
  • Seller Finance
  • Green
  • Fixer Upper
  • Horse
  • Golf
  • Fireplace
  • Deck
  • Garage
  • Basement
  • Pool

Affordability Calculator

$3,786

Per Month

Based on the average sale price from the Miami Beach, FL office

  • Monthly Principal & interest $2,658
  • Monthly Property Taxes $1,062
  • Monthly Home Insurance $67
Adjust Payment Options
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Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA, or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

Schools

Elementary School Keybiscayne Elementary School
Middle School Ponce De Leon Middle School
High School Coral Gables High School

Price History

6/12/2026 Listed $7,450,000

Property vs Zip Code Average in 33149

Price
AVG $9.24M
$7.45M
Taxes
AVG $76,969
$89,673
Year Built
AVG 1986
2020

In The Neighborhood

Areas That We Cover

425 Harbor Dr Key Biscayne, FL is a Single Family Home for sale at $7450000 with 4565 sqft and a lot size of Acre(s). 425 Harbor Dr Key Biscayne has 7 bedrooms, 7 baths and was built in 2020. The property's zip code is 33149 which is in Key Biscayne, FL

*Information deemed reliable but not guaranteed.

Financial calculator disclaimer: Default based on a 30-year fixed rate of 6.49% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.

Mortgage calculator provided courtesy of Inside Real Estate.

All information deemed reliable, but not guaranteed, and should be independently verified. The real estate information and related content displayed on this site is provided 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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