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Listing data: BeachesMLS. Information not verified for authenticity or accuracy and not guaranteed; may not reflect all real estate activity in the market. © 2026 Beaches Multiple Listing Service, Inc. All rights reserved. Information Not Guaranteed and Must Be Confirmed by End User.

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  1. Home›
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  3. Key Biscayne›
  4. 685 Harbor Lane, Key Biscayne, FL 33149

Key Biscayne · FL

685 Harbor Lane, Key Biscayne, FL 33149

Key Biscayne, FL 33149

Status: ActiveHouse · Single Family Residence5,421 sqftBuilt in: 2001DOM: 181Garage: 1

Price

$6,950,000

Price per sqft: $1,282/sqft

5

Bedrooms

6

Baths

5,421

SqFt

Active
685 Harbor Lane, Key Biscayne, FL 33149

MLS® ID: A11997896

About this home in Key Biscayne

Step inside this stunning luxurious 5-bedroom, 6-bath Single Family Residence located in Key Biscayne, spanning 5,421 sq ft of interior living area. Biscayne Key Estates residents enjoy Beach Club Available. Outdoors, the pool area features In Ground. Exterior features: Lighting and Balcony. Interior highlights include Bar, Entrance Foyer, Kitchen Island, Walk-In Closet(s), Closet Cabinetry, and Storage. Underfoot, the home offers Marble, Tile, and Wood. The home is served by Central Air cooling and Central heating. with a Northwest-facing exposure under a Aluminum roof. The home sits on a 0.21-acre lot, with total building area of 6,971 sq ft. Currently active on the market; 5 days on market. The current owner's annual property tax bill is approximately $40,335. Listed at $6,950,000 (~$1,282/sqft). Financing options include Cash and Conventional. No HOA fees apply.

5

Bedrooms

6

Baths

5,421

SqFt

House

Type

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More homes in Biscayne Key Estates

Listing courtesy of Avanti Way Realty LLC. Information is deemed reliable but not guaranteed. © BeachesMLS.

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▼40.8% below market
-40.8%

This listing: $1282/sqft · Area median: $2167/sqft

Based on 3 recent sales in ZIP 33149 (last 90 days)

Est. payment

$41,110/mo

Principal & interest
$35,143
Property taxes
$3,361
Home insurance
$2,606
HOA fees
N/A

Utilities not included

Calculations are estimates only and not a loan commitment. Taxes, insurance, rates and APR may vary. Final approval depends on lender review.

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