EXPLORE 3D TOUR
1 / 50
See all 50
425 Harbor Dr, Key Biscayne, FL 33149
$7,450,000
· $1,632/sqft · Est. $49,335/mo
7 bd · 7 ba + 2 half · 4,565 sqft · 0.21 acres (9,258 sqft) · 504 days on market · MLS# A12034564
Request Property Documents For 425 Harbor Dr, Key Biscayne, FL 33149
Request a document for this home and we'll follow up with it.
Seller's Disclosure
Property Survey
Floor Plan
Comparative Market Analysis
About 425 Harbor Dr, Key Biscayne, FL 33149
Listing details for 425 Harbor Dr, Key Biscayne, FL 33149: 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.
Bedrooms
7
Bathrooms
7 full · 2 half
Square Feet
4,565
Year Built
2020
Lot
0.21 acres (9,258 sqft)
Garage
1 space
HOA
No
Taxes (2025)
$89,673
Property Details for 425 Harbor Dr, Key Biscayne, FL 33149
MLS# A12034564 · Source: MIAMI + RWorld · Updated Sep 17, 2026
Interior
Bedrooms & Bathrooms
- Bedrooms: 7
- Full Baths: 7
- Half Baths: 2
Heating & Cooling
- Heating: Central, Electric
- Cooling: Central Air
Appliances & Laundry
- Appliances Included: Built-In Oven, Dryer, Dishwasher, Electric Range, Disposal, Microwave, Refrigerator, Wine Cooler, Washer
- Laundry: In Garage
Interior Features
- Interior Features: 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
- Has Fireplace: No
- Accessibility Features: Accessible Elevator Installed
- Furnished: Unfurnished
Interior Area
- Total Interior Livable Area: 4,565 sqft
- Total Structure Area: 6,092 sqft
- Virtual Tour: View Virtual Tour
Property
Parking
- Has Garage
- Yes
- Garage Spaces
- 1
- Covered Spaces
- 3
- Parking Features
- Attached Carport, Covered, Driveway, Electric Vehicle Charging Stations
- Carport
- Yes
Features
- Direction Faces
- West
- Patio & Porch
- Balcony, Deck, Open
- Exterior Features
- Balcony, Deck, Fence, Security High Impact Doors, Outdoor Grill, Outdoor Shower
- Has Private Pool
- Yes
- Pool Features
- Heated, In-Ground, Pool
- Waterfront
- No
Lot
- Lot Size
- 0.21 acres (9,258 sqft)
- Lot Features
- Less than 1/4 Acre
Details
- Parcel Number
- 24-42-32-005-0220
- Zoning
- 0100
- 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
Construction
Type & Style
- Home Type
- Single Family Residence
- Property Type
- Residential
Materials
- Construction Materials
- Block
- Roof
- Flat
- Foundation
- Raised
- Window Features
- Impact Glass
- Storm Protection
- Complete Impact Glass
Condition
- Condition
- Effective Year Built
- New Construction
- No
- Year Built
- 2020
Utilities & Green Energy
- Water Source
- Public
- Sewer
- Public Sewer
- Security Features
- Smoke Detectors
Community & HOA
Community
- Subdivision
- Tropical Isle Homes Sub 3
- Community Features
- See Remarks
- Restrictions
- Other Restrictions
- 55+ Community
- No
Housing in Village Of Key Biscayne
- Median Value of All Homes (2023 Census)
- $1,246,268
- Median Rent
- $3,394/mo
- Owner-Occupied Homes
- 69%
- Homes Built
- Mostly 1970s
- Housing Units
- 4,994
HOA
- Membership Required
- No
Location
- Neighborhood
- Village Of Key Biscayne
Financial & Listing Details
- Price per Sq Ft
- $1,632/sq ft
- Annual Tax Amount
- $89,673
- Tax Year
- 2025
- Date on Market
- Jun 12, 2026
- Cumulative Days on Market
- 504 days
- Listing Terms
- Cash, Conventional
- Special Conditions
- Listed As Is
- Possession
- Closing and Funding, Close of Escrow
- Occupant Type
- Call Agent
- MLS Number
- A12034564
- Listed By
- Mark Chatburn — One Sotheby's International Realty, Brigitte Nachtigall — One Sotheby's International Realty
Tropical Isle Homes Sub 3
Tropical Isle Homes Sub 3 is a neighborhood in Key Biscayne. Census median home value is $1,246,268.
Location of 425 Harbor Dr, Key Biscayne, FL 33149
- Street Address
- 425 Harbor Dr
- City
- Key Biscayne
- ZIP Code
- 33149
- Neighborhood
- Tropical Isle Homes Sub 3
- County
- Miami-Dade County
Estimated monthly
30-yr fixed
$49,335
/mo
$7,450,000 · 20% down · 7.16%
Principal & interest
$40,311
Property taxes
$7,473
Home insurance
$1,552
Home price
$7,450,000
Down payment
$1,490,000 · 20%
Interest rate
7.16%
Estimates only. Actual costs vary by lender, credit score, and market conditions.
Frequently Asked Questions About 425 Harbor Dr
How much is 425 Harbor Dr, Key Biscayne, FL 33149 listed for?
425 Harbor Dr, Key Biscayne, FL 33149 is currently listed at $7,450,000. That works out to approximately $1,632 per square foot.
How big is 425 Harbor Dr?
This property features 7 bedrooms, 7 full and 2 half bathrooms, 4,565 sq ft of living space.
What are the property taxes on 425 Harbor Dr, Key Biscayne, FL 33149?
The most recent tax bill for 425 Harbor Dr, Key Biscayne, FL 33149 is $89,673/yr (~$7,473/mo). Florida primary residents may qualify for a homestead exemption that reduces this amount.
Are there HOA fees at 425 Harbor Dr?
Based on current MLS data, no HOA fee is listed for this property. We recommend confirming with the seller's disclosure or your agent, as some communities charge fees not reflected in MLS.
Which schools are zoned for 425 Harbor Dr, Key Biscayne, FL 33149?
425 Harbor Dr, Key Biscayne, FL 33149 is located in Key Biscayne, FL 33149. School assignments are set by the county school board and can change. Verify with the county school district before enrolling.
How does the list price compare to Tropical Isle Homes Sub 3 home values?
At $7,450,000, this home is listed 498% above the Tropical Isle Homes Sub 3 census median home value of $1,246,268. Actual sale price is set by negotiation.
Related Pages for Key Biscayne, FL
Explore more information about the area, neighborhood, and property types
Browse South Florida Cities
Browse South Florida Cities & Clubs
Explore Nearby Cities
Browse homes for sale in cities near Key Biscayne
Explore Cities & Clubs
Browse South Florida cities and private club communities
Listing Information & Disclaimer
Listed By: One Sotheby's International Realty · 305.393.6032
All listings featuring the BMLS logo are provided by BeachesMLS, Inc. This information is not verified for authenticity or accuracy and is not guaranteed. Copyright ©2026 BeachesMLS, Inc.
Listing information is provided in part by the MIAMI + RWorld Internet Data Exchange program. IDX information is provided exclusively 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. Data is deemed reliable but is not guaranteed accurate by the MLS. Data last updated Nov 13, 2026 5:57 PM. Equal Housing Opportunity.
To report inaccurate listing data, email andy@mandelteam.com or call (954) 610-0563. Inaccurate information is corrected within two business days, and within 48 hours for registered users.