685 Harbor Ln Key Biscayne, FL $ 6,950,000
685 Harbor Ln
$ 6,950,000
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685 Harbor Ln

Key Biscayne, FL, 33149
$ 6,950,000
Bedrooms5 Baths6.0 Sq 5,421

Monthly Estimate*

$ 42,792

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Single Family Home for sale in Key Biscayne, FL

for $6,950,000 with 5 bedrooms and 6 full baths. This 5,421 square foot home was built in 2001.

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.

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Single Family Active

Price

$ 6,950,000

Bedrooms

5

Full Bath

6

Property Type

Single Family

Taxes

$ 40,335

Style

Year Built

2001

Town/City

Key Biscayne

County/Region

Miami-Dade

MLS | Web ID

A11997896

Features
General
Sewer Public Sewer
Heating Central
Cooling Central Air
Possession Closing & Funding
Roof Aluminum
Appliances Dryer Dishwasher Electric Water Heater Disposal Gas Range Ice Maker Refrigerator
Garage Spaces 1
Patio/Porch Features Balcony Open Patio Porch
Architectural Style Two Story
Pool Features In Ground Pool
Restrictions OK To Lease
Year Built 2001
View Other
Stories Count 2
Levels Two
Property Subtype Single Family Residence
Tax Year 2025
Community Features Beach Club Membership Available
County Miami-Dade
Property Type Residential
Attached Garage true
Subdivision Name BISCAYNE KEY ESTATES
Facing Direction Northwest
Garage Y/N true
Total Rooms 0
Full Baths 6
Special Listing Conditions Listed As-Is
Status Active
High School Coral Gables
City Key Biscayne
Senior Community Y/N false
Zoning Description 0100
MLS Area 52
Lot Size Units Square Feet
Lot Size Square Feet 9000
Listing Terms Cash Conventional
Elementary School Keybiscayne
Year Built Details Resale
Tax Annual Amount 40335
Middle/Junior High School Ponce De Leon
Lease Considered Y/N false
Standard Status Active
Occupancy Type Call Agent
Property Sub Type Additional Single Family Residence
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
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Interior
Interior Amenities Bedroom on Main Level Closet Cabinetry Entrance Foyer First Floor Entry Kitchen Island Upper Level Primary Bar Walk-In Closet(s)
Flooring Hardwood Marble Tile Wood
Air Conditioning Y/N true
Heating Y/N true
Window Features Impact Glass Plantation Shutters
Half Baths 0
Total Bedrooms 5
Total Baths 6
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Exterior
Exterior Amenities Balcony Security/High Impact Doors Lighting Porch Patio Storm/Security Shutters
Parking Features Attached Driveway Garage
Lot Features 1/4 to 1/2 Acre Lot Sprinklers Automatic
Water Source Public
Lot Size Area 9000
Foundation Details Pillar/Post/Pier Raised
Building Area Total 6971
Waterfront Y/N false
Covered Spaces 1
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* Excluded Features
List By
Avanti Way Realty Llc

Broker

mgservat@gmail.com

Email

Affordability Calculator

$46,154
Per Month
93%
7%
0%
Monthly Principal & Interest
$42,792
Monthly Property Taxes
$3,361
Monthly Home Insurance
--
Default based on a 30-year fixed rate of 6.25% with 20% down. The estimated payment is offered for convenience and is not an offer of credit. Due to market fluctuations, interest rates are subject to change at any time and without notice. Your individual rate may vary. Rates may differ for FHA, VA or jumbo loans.
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Nearby
3062566 Elementary School
4268812 Middle School
Coral Gables High School High School
Pricing History
DatePricePrice ChangeDescription
4/16/2026$6,950,000 Listed Price

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685 Harbor Ln, Key Biscayne, FL, 33149 is a Single Family Home for sale at $6,950,000 with 5,421 sqft. 685 Harbor Ln has 5 bedrooms, 6.0 baths, and was built in 2001. The property's zip code is 33149 which is in Key Biscayne, FL