BISCAYNE KEY ESTATES

685 Harbor Ln, Key Biscayne FL 33149

5 beds · 5.5 baths · 5,421 ft²

For Sale · Active Listing

$6,950,000

Est. Payment $36,991/mo

MLS Sheet Video

5

Bedrooms

5.5

Bathrooms

5,421

Sq. Ft.

2001

Year Built

1

Garage

20

Days on Market

Description

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.

Facts

MLS#
A11997896
Subdivision
BISCAYNE KEY ESTATES
Property Type
Residential
Property Sub Type
Single Family Residence
Year Built
2001
Lot Size
9,000 ft²
Sq. Ft.
5,421 ft²
Sq. Mt.
504 m²
Price per sq. ft.
$1,282/ft²
Price per sq. mt.
$13,790/m²
Stories
Garage
1 spaces
Pool
Days on Market
20 days
Listed
Apr 16, 2026
Last Updated
May 6, 2026
Price/Lot Sq.Ft.
$772/ft²

Comparable homes

Same ZIP, similar price + bedrooms.

Market insights for Key Biscayne

Live MLS-derived activity. Forecast is a conservative rule-of-thumb estimate — not a guarantee.

Sellers market

May 2026

100/100
Buyers marketSellers market

34

Median days to sold

+4.5%

1-year price forecast (est.)

Price & tax history

From the live MIAMI MLS feed. Older history requires the ListingHistory resource (not yet enabled).

4/16/2026Listed for sale$6,950,000

History reflects fields present on the live MLS record. Full multi-year history requires the MIAMI ListingHistory resource (not yet enabled).

Location

685 Harbor Ln, Key Biscayne FL 33149Directions

GreatSchools Summary Ratings

Public + private K-12 schools within 5 miles of this listing.

GreatSchoolsData provided by GreatSchools.org © 2026. All rights reserved.

Estimated Monthly Payment

$42,932/mo

Principal & Interest

$36,991

Property Tax

$5,792

Insurance

$150

HOA

$0

20% ($1,390,000)
7.00%
30 years
1.00% (FL avg ~1.0%)
$0/mo
$150/mo

Estimates only. Actual payment depends on credit, lender, insurance carrier, and FL/Miami-Dade specifics. Contact Rangely for a precise quote.

Rangely Adames

Rangely Adames

Sales Associate | Sunland Group

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