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$6,950,000 Just Listed

  • For Sale
  • Active
  • Single Family
  • 5 Beds
  • 6 Full Baths
  • 5,421 Sq. Ft.
  • Updated 1 day ago
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Timeless colonial-style residence, also known as Villa Rosa, set on a rare 12,200 sqft lot in the heart of Key Biscayne. Designed by renowned architect Cesar Molina, this 5-bedroom home is located on a very quiet, low-traffic street, offering privacy within a well-established, family-friendly neighborhood. The home features double balconies, bright interiors, and a functional indoor-outdoor layout with expansive covered terraces. The kitchen includes an island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite offers a private terrace, oversized walk-in closet with safe, and dual bathrooms with sauna. The spacious backyard includes a pool and generous green space. Additional features include maid's quarters and construction that meets hurricane code requirements. Ideally located near beaches, parks, and top-rated schools, this is a rare opportunity to own a well-designed home on one of Key Biscayne's most desirable streets.

Full Property Details for 685 Harbor Ln

General

  • Price: $6,950,000
  • Taxes: $40,335 (2025)
  • Status: Active
  • Type: Single Family
  • Source: Greater_Miami
  • MLS ID: A11997896
  • Updated: 4/16/2026
  • Added to Site: 1 day(s) ago

Interior

  • Interior Features: First Floor Entry, Bar, Closet Cabinetry, Cooking Island, Entrance Foyer, Walk-In Closet(s), Family Room, Great Room, Storage
  • Appliances: Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Gas Range, Refrigerator
  • Flooring: Marble, Tile, Wood

Rooms

Bathrooms

  • Total Bathrooms: 6
  • Full Bathrooms: 6
  • Primary Bathroom: 2 Primary Bathrooms

Bedrooms

  • Total Bedrooms: 5
  • Bedroom Features: At Least 1 Bedroom Ground Level, Primary Bedroom Upstairs

Other Rooms

  • Living Room: Family Room, Great Room, St Sq. Ft.

Additional Information

  • Pool: Yes
  • Pool Description: In Ground, 30x10

Exterior

  • Exterior Features: Lighting, Open Balcony
  • Deck/Patio: Open Balcony, Open Porch, Patio

Parking

  • Garage: Yes
  • Attached garage: Yes
  • Garage Spaces: 1
  • Covered Spaces: 1
  • Parking Features: Driveway

Location

  • Area: Biscayne Key Estates
  • County: Miami-Dade County
  • Subdivision: BISCAYNE KEY ESTATES
  • Building Name: BISCAYNE KEY ESTATES
  • Direction Faces: Northwest

School Information

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

Community

  • Community Name: Biscayne Key Estates

Heating & Cooling

  • Air Conditioning: Yes
  • Cooling Type: Central Air
  • Heating Type: Central

Utilities

  • Sewer: Public Sewer
  • Water: Municipal Water

Structural Information

  • Architectural Style: Attached, Two Story
  • Structure Type: Pool Only, House
  • Detached/Attached: Detached
  • Construction: Elevated Construction, Piling Construction
  • Roof: Aluminum
  • Windows: Hurricane Shutters, Impact Glass, Plantation Shutters
  • Doors: High Impact Doors
  • Entry Location: Foyer
  • Building Size: 6971
  • Square Feet: 5,421
  • Living Area: 5,421 Sq. Ft.
  • Year Built: 2001
  • Property Condition: Piling Construction

Lot Features

  • Property View: Other
  • Lot Size (Sq. Ft.): 9,000
  • Lot Features: 1/4 To Less Than 1/2 Acre Lot
  • Zoning: 100

Financial Considerations

  • Price Per Sq. Ft.: $1,282.05
  • Tax Amount: $40,335
  • Tax Year: 2025
  • Terms: All Cash, Conventional

Disclosures and Reports

  • Legal Description: 5 & 6 55 42 BISCAYNE KEY ESTS PB 50-61 LOT 23 BLK 9 LOT SIZE 9000 SQ FT OR 14097-1199 0489 1
  • Restrictions: Ok To Lease
  • Property ID: 24-52-05-001-1330

Listed by Avanti Way Realty LLC

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Listing agents

— 685 Harbor Ln —

  • Avanti Way Realty LLC

  • Avanti Way Realty LLC

Get Pre-Approved Today

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Be ready to buy your new home!

with our affiliated lender
NMLS#: 1598647

Get Pre-Approved

Schools serving 685 Harbor Ln

School District:Dade County School District
NameGradesDistance
Key Biscayne K-8 Center
150 West McIntyre Street, Key Biscayne, FL 33149
PK-50.3 mi
Ponce De Leon Middle School
5801 Augusto Street, Coral Gables, FL 33146
6-86.5 mi
Coral Gables Senior High School
450 Bird Road, Coral Gables, FL 33146
9-126.5 mi
Disclaimer: School attendance boundaries provided by ATTOM Data Solutions and are for reference only. Contact the school directly to verify enrollment eligibility.

Price & Sales History for 685 Harbor Ln Get Price Alerts and Save Property

Date
Details
Price
Change
Source
4/16/2026
Listed
$6,950,000
124.19%
MLS
5/29/2019
Sold
$3,100,000
—
Public Record
Get Price Alerts and Save Property
Disclaimer: Historical sales information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

Tax History for 685 Harbor Ln

Year
Property Taxes
Change
Tax Assessment
Change
2025
$40,335
2%
$2,528,159
3%
2024
$39,423
1%
$2,456,909
3%
2023
$38,898
4%
$2,385,349
6%
2021
$37,429
—
$2,248,421
-3%
2022
$37,299
—
$2,315,873
4%
2021
$37,429
45%
$2,217,378
38%
2019
$25,894
5%
$1,602,582
2%
2018
$24,573
1%
$1,572,701
2%
2017
$24,265
—
$1,540,354
2%
2016
$24,335
-1%
$1,508,672
1%
2015
$24,691
-2%
$1,498,185
1%
2014
$25,070
2%
$1,486,295
1%
2013
$24,587
—
$1,464,331
—
View All
Disclaimer: Historical tax information is derived from public records provided by the county offices. Information is not guaranteed and should be independently verified.

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*These costs are estimates, and the interest rates assume exceptional credit standing.

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NMLS#: 1598647

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Listed by Avanti Way Realty LLC

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685 Harbor Ln, Key Biscayne, FL 33149 (MLS# A11997896) is a Single Family property with 5 bedrooms and 6 full bathrooms. 685 Harbor Ln is currently listed for $6,950,000 and was received on April 16, 2026. Want to learn more about 685 Harbor Ln? Do you have questions about finding other Single Family real estate for sale in Key Biscayne? You can browse all Key Biscayne real estate or contact a Coldwell Banker agent to request more information.

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