425 Harbor Dr
Key Biscayne, FL 33149
7 Beds
8 Baths
4,565 sqft
7 Beds
8 Baths
4,565 sqft
Local Information
- Map ViewExplore the area around 425 Harbor Dr.
- Schools2 Preschool Schools1 Elementary School2 Middle Schools1 High School
- Shop & Eat
-- mins to
Description
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.
Home Highlights
Parking
Garage
Outdoor
Deck, Pool
View
Other
HOA
None
Price/Sqft
$1,632
Listed
25 days ago
Home Details for 425 Harbor Dr
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Beds & Baths Number of Bedrooms: 7Number of Bathrooms: 9Number of Bathrooms (full): 7Number of Bathrooms (half): 2 |
Dimensions and Layout Living Area: 4565 Square Feet |
Appliances & Utilities Appliances: Dishwasher, Disposal, Dryer, Electric Range, Microwave, Refrigerator, Oven, WasherDishwasherDisposalDryerLaundry: In GarageMicrowaveRefrigeratorWasher |
Heating & Cooling Heating: Central,ElectricHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Central |
Fireplace & Spa Has a Spa |
Windows, Doors, Floors & Walls Window: Complete Impact Glass, High Impact WindowsDoor: High Impact DoorsFlooring: Wood |
Levels, Entrance, & Accessibility Levels: Three Or MoreEntry Location: First Floor EntryAccessibility: Accessible Elevator InstalledElevatorFloors: Wood |
View Has a ViewView: Other |
Security Security: Smoke Detector |
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Exterior Home Features Roof: Flat Roof With Facade FrontPatio / Porch: DeckFencing: FencedExterior: Built-in Barbecue, Balcony, Outdoor ShowerFoundation: RaisedHas a Private Pool |
Parking & Garage Number of Garage Spaces: 1Number of Carport Spaces: 2Number of Covered Spaces: 3Has a CarportHas a GarageHas Open ParkingParking Spaces: 3Parking: Attached Carport,Covered,Driveway,Electric Vehicle Charging Station(s),Other |
Pool Pool: In Ground, Heated, Pool OnlyPool |
Frontage Not on Waterfront |
Water & Sewer Sewer: Public Sewer |
Farm & Range Not Allowed to Raise Horses |
Surface & Elevation Elevation Units: Feet |
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Days on Market: 25 |
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Year Built Year Built: 2020 |
Property Type / Style Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: House,Attached |
Building Building Name: Tropical Isle Homes Sub 3Construction Materials: CBS Construction |
Property Information Parcel Number: 2442320050220 |
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Price List Price: $7,450,000Price Per Sqft: $1,632 |
Status Change & Dates Possession Timing: Funding |
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MLS Status: Active |
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Direction & Address City: Key BiscayneCommunity: Tropical Isle Homes Sub 3 |
School Information Elementary School: KeybiscayneJr High / Middle School: Ponce De LeonHigh School: Coral Gables |
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Listing Agent Listing ID: A12034564 |
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Building Area Building Area: 6092 Square Feet |
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Community Features: Other Subdivision - See Remarks |
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Association for this Listing: A-Miami Association of REALTORSNo HOA |
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Lot Area: 9258 sqft |
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Listing Terms: All Cash, Conventional |
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Mls Number: A12034564 |
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Other Subdivision - See RemarksSource Internet Entire Listing Display |
Last check for updates: about 4 hours ago
Listing courtesy of Mark Chatburn, (305) 393-6032
One Sotheby's International Realty
Brigitte Nachtigall, (305) 710-9664
One Sotheby's International Realty
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A12034564
Also Listed on MIAMI.
Market trends in Key Biscayne
Last updated May 2026
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
167
2MoM
Price History for 425 Harbor Dr
| Date | Price | Event | Source |
|---|---|---|---|
| 06/12/2026 | $7,450,000 | Listed For Sale | MIAMI #A12034564 |
| 04/21/2026 | $7,750,000 | ListingRemoved | MIAMI #A11873862 |
| 09/07/2025 | $7,750,000 | Listed For Sale | MIAMI #A11873862 |
| 08/22/2025 | $7,899,000 | ListingRemoved | MIAMI #A11752360 |
| 02/28/2025 | $7,899,000 | Listed For Sale | MIAMI #A11752360 |
| 05/16/2023 | ListingRemoved | MIAMI #A11385426 | |
| 05/11/2023 | $35,000 | Listed For Rent | MIAMI #A11385426 |
| 05/02/2023 | $6,800,000 | Sold | MIAMI #A11304500 |
| 03/20/2023 | $7,400,000 | Pending | MIAMI #A11304500 |
| 11/17/2022 | $7,400,000 | Listed For Sale | MIAMI #A11304500 |
| 10/15/2020 | $4,050,000 | Sold | MIAMI #A10938273 |
| 10/06/2020 | $4,490,000 | Listed For Sale | Agent Provided |
| 02/12/2020 | $3,840,000 | Sold | MIAMI #A10746909 |
| 01/06/2020 | $4,390,000 | Pending | Agent Provided |
| 09/30/2019 | $4,390,000 | Listed For Sale | Agent Provided |
| 09/26/2016 | $2,300,000 | Sold | N/A |
| 02/19/2016 | $2,450,000 | PriceChange | Agent Provided |
| 09/01/2015 | $2,600,000 | Listed For Sale | Agent Provided |
| 06/26/2015 | $23,000 | Sold | N/A |
| 04/06/2015 | $2,400,000 | Listed For Sale | Agent Provided |
| 12/18/2013 | $2,350,000 | ListingRemoved | Agent Provided |
| 09/30/2013 | $2,350,000 | Listed For Sale | Agent Provided |
| 07/05/2012 | $7,000 | ListingRemoved | Agent Provided |
| 06/26/2012 | $7,000 | Listed For Rent | Agent Provided |
| 04/10/2012 | $7,000 | ListingRemoved | Agent Provided |
| 03/12/2012 | $7,000 | Listed For Rent | Agent Provided |
| 07/22/2011 | $1,350,000 | Sold | N/A |
| 07/16/2009 | $990,000 | Sold | N/A |
| 05/07/2004 | $940,000 | Sold | N/A |
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Property Tax and Assessment
| Year | 2025 |
|---|---|
| Tax | $89,673 |
| Assessment | $5,683,569 |
Home facts updated by county records
Comparable Sales for 425 Harbor Dr
Address | Distance | Property Type | Sold Price | Sold Date | Bed | Bath | Sqft |
|---|---|---|---|---|---|---|---|
0.29 | Single-Family Home | $4,820,000 | 08/15/25 | 6 | 6.5 | 4,165 | |
0.21 | Single-Family Home | $6,275,000 | 12/11/25 | 5 | 5.5 | 3,525 | |
0.27 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.56 | Single-Family Home | $6,500,000 | 03/31/26 | 7 | 7.5 | 5,528 | |
0.33 | Single-Family Home | $6,350,000 | 07/31/25 | 5 | 5.5 | 3,525 | |
0.14 | Single-Family Home | $4,400,000 | 04/08/26 | 5 | 5 | 3,230 | |
0.29 | Single-Family Home | $4,600,000 | 10/10/25 | 5 | 5.5 | 4,089 | |
0.27 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.43 | Single-Family Home | $6,700,000 | 04/22/26 | 6 | 5.5 | 3,520 | |
0.39 | Single-Family Home | $5,220,000 | 10/01/25 | 6 | 6 | 3,737 |
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Assigned Schools
These are the assigned schools for 425 Harbor Dr.
- Key Biscayne K-8 Center
- PK-8
- Public
- 803 Students
8/10GreatSchools RatingParent Rating Averagethey have nothing they lost it allParent Review9mo ago - Ponce De Leon Middle School
- 6-8
- Public
- 668 Students
6/10GreatSchools RatingParent Rating AverageMi hija estudio en Ponce de León Middle School durante 3 años, y realmente su experiencia fue muy satisfactoria. El personal administrativo, los maestros, Los principales Señor Balboa durante 1 año, y posteriormente la Sra Gonzalez durante los últimos dos años, en fin todo el staff. Nos llevamos muchas buenas experiencias de este colegio. La Sra Marlene Ramos, la coordinadora de IB marca la diferencia, nos aconsejo y acompaño durante estos años cada día, dándonos los mejores consejos y asesorías. Estamos felices de haber pertenecido a esta comunidad. Muchas graciasParent Review1mo ago - Coral Gables Senior High School
- PK-12
- Public
- 2931 Students
5/10GreatSchools RatingParent Rating AverageAs a current teacher and Alumni of CGHS, this is, without a doubt, the worst school I have ever taught and studied at. The primary factor for this is the teachers, especially Diana Van-Wyk. She is the "IB Coordinator" of the school, who demonstrates clear favoritism, laziness, apathy, and sexism. As a counsellor and coordinator of such a prestige program such as the IB, I would expect her to care for her students and support them fully through their academic journey, as would most people. However, since she has joined this school years ago, I have seen a noticeable decline in student mental health, overall happiness, and communication with teachers. This is what inspired me to become a teacher, so I could be everything she isn't. Furthermore, I have received multiple student complaints about her, and her failure of communication as well as her stubbornness. I don't think she understands that the students she deals with are socially maturer than most, perhaps indicating why she refuses to admit she's wrong. It is in the best interest of the school to remove her as a faculty.Teacher Review4mo ago 
Check out schools near 425 Harbor Dr.
What Locals Say about Key Biscayne
At least 116 Trulia users voted on each feature.
94 % Say it's walkable to grocery stores
94 % Say kids play outside
90 % Say it's dog friendly
90 % Say it's walkable to restaurants
85 % Say people would walk alone at night
85 % Say there are sidewalks
79 % Say it's quiet
79 % Say there's holiday spirit
76 % Say they plan to stay for at least 5 years
68 % Say parking is easy
67 % Say streets are well-lit
60 % Say there are community events
58 % Say neighbors are friendly
54 % Say yards are well-kept
52 % Say there's wildlife
50 % Say car is needed
Sourced by Trulia users. Learn more about our methodology.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Mark Chatburn, One Sotheby's International Realty
Agent Phone: (305) 393-6032
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
425 Harbor Dr, Key Biscayne, FL 33149 is a 7 bedroom, 9 bathroom, 4,565 sqft single-family home built in 2020. This property is currently available for sale and was listed by MIAMI on Jun 12, 2026. The MLS # for this home is MLS# A12034564.