425 Harbor Dr, Key Biscayne FL 33149

House For Sale

$7,450,000

BTC: 116.06239701

ETH: 4,225.89537931

10 days

For Sale

House

7 bds •

7 ba •

4,565 sqft

Overview

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.

Location

Florida • Key Biscayne • 33149 • House • For Sale

Details

Type:

Residential

Parking:

Attached Carport / Covered / Driveway / Electric Vehicle Charging Station(s) / Other

Year Built:

2020

Lot:

9258 Square Feet

Heating:

Central / Electric

Price/sqft:

$1,632

Cooling:

Central Air

HOA:

No Data

Type:

Residential

Parking:

Attached Carport / Covered / Driveway / Electric Vehicle Charging Station(s) / Other

Year Built:

2020

Lot:

9258 Square Feet

Heating:

Central / Electric

Price/sqft:

$1,632

Cooling:

Central Air

HOA:

No Data

Private inquiry

Talk to the advisor on this listing.

Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

Valuation

Our model vs. what's actually selling nearby.

Estimate

$7,250,000

$4.3M – $7.4M

Confidence Low

List vs. estimate

$200K above estimate

List $7,450,000 · +2.8%

Our model says this listing is priced above recent comparable activity. Room to negotiate.

Price per sq ft

$1,631

-12.4% vs. city median $1,862

Based on

5 MLS comparables

+ 30 public-records sales within 0.5 mi

Median actual sale: $3.9M

Median of recent comparable listings. Sold comps use closing price, active listings use list price.

Highlights

Annual tax

$89,673

2025

Pool

In Ground

View

Other

Garage

1 car garage

All facts and features

Flooring

• Wood

Heating

• Central

• Electric

Cooling

• Central Air

Appliances

• Dishwasher

• Disposal

• Dryer

• Electric Range

• Microwave

• Refrigerator

• Wall Oven

• Washer

Other interior features

• First Floor Entry

• Built-in Features

• Closet Cabinetry

• Cooking Island

• Elevator

• Volume Ceilings

• Walk-In Closet(s)

• Other

• Storage

• Utility/Laundry In Garage

Bedrooms and bathrooms

• Bedrooms: 7

• Bathrooms: 2

• Full bathrooms: 7
Parking

• Attached Carport

• Covered

• Driveway

• Electric Vehicle Charging Station(s)

• Other

Property

• Exterior Features: Built-In Grill / Open Balcony / Outdoor Shower

Lot

• Lot: 9258 Square Feet

Other Property Information

• Parcel Number: 24-42-32-005-0220

• Zoning: 0100
Type and style

• Property Type: Residential

• Property Sub Type: Single Family Residence
Other financial information

• Annual tax amount: $89,673
Source details

• MLS ID: A12034564

Other facts

• Construction Materials: CBS Construction / Elevated Construction

• Laundry Features: In Garage

• Lot Features: Less Than 1/4 Acre Lot

• Patio And Porch Features: Deck / Open Balcony

• Pool Features: In Ground / Heated

• Window Features: Complete Impact Glass / High Impact Windows

• Direction Faces: West

• Architectural Style: Attached / Three Or More Stories

• Garage Spaces: 1

• Garage: Yes

• Living Area: 4565

• Water Source: Municipal Water

• Subdivision Name: TROPICAL ISLE HOMES SUB 3

Private inquiry

Talk to the advisor on this listing.

Floor plans, HOA docs, off-market comparables, scheduling a private showing — one message, direct to the local specialist.

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Market around this address

Live counts in the same area.

The multiple listing information is provided by the Miami Association of REALTORS® from a copyrighted compilation of listings. The compilation of listings and each individual listing are ©2026-present Miami Association of REALTORS®. All Rights Reserved. The information provided is for consumers' personal, noncommercial use and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. All properties are subject to prior sale or withdrawal. All information provided is deemed reliable but is not guaranteed accurate, and should be independently verified. Listing courtesy of: One Sotheby's International Realty

425 Harbor Dr, Key Biscayne FL 33149

Overview

Location

Details

Valuation

Highlights

Interior details

Property details

Construction details

HOA and Financial Details

Other

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