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Active - House for sale

685 Harbor Ln, Key Biscayne FL 33149

5 bds|5 bth + 1 half|5,421 sqft

Facts & features

House Property type
211 days on Beycome
2001 Year built
$1,282 Price/Sqft.
1 car garage Parking

Why you’ll love it

Set on one of the largest lots in Key Biscayne, a rare 12,200 sqft parcel, this colonial-style residence, known as Villa Rosa, was designed by renowned architect Cesar Molina and sits on a quiet, low-traffic street in a well-established, family-friendly neighborhood. The generous lot allows for a spacious backyard with pool and abundant green space, ideal for outdoor living and entertaining. Double balconies and covered terraces create a seamless indoor-outdoor flow throughout the home. This 5-bedroom residence offers bright interiors and a chefs kitchen with island, Sub-Zero refrigerator, wine cooler, double ovens, and two dishwashers. The primary suite includes a private terrace, oversized walk-in closet with safe, and dual baths with sauna. Also includes maids quarters and hurricane code construction. Minutes from the beach, parks, and top schools - a rare opportunity to own a well-designed home with an exceptional lot on one of Key Biscayne's most desirable streets.

Translating description...

Listings courtesy of Avanti Way Realty LLC.

Listed by: Marisela Gonzalez Servat • 786-663-2842 • Avanti Way Realty LLC

Co-listed by: Alejandra Stalder • 786-663-2842 • Avanti Way Realty LLC

Source: Miami MLS, MLS#: A11997896 Miami MLS logo

Based on info available as of Nov 12, 2026 at 7:10 PM EST.

Come see by yourself

Affordability

$4,520,000$9,385,000
1%20%
0%90%
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Estimated monthly payment

$38,504/mo

  • Mortgage$35,143
  • Property tax$3,361
  • HOA fee
  • Homeowners insurance
Due at closing$5,525,250
Down payment held in escrow$1,390,000
Closing costs$104,250
beycome credit Est.$139,000

Beycome estimates only. Actual amounts and terms vary by lender and location.

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About Biscayne Key Estates

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Flood & climate risk

FEMA Flood Zone AE

In a FEMA Special Flood Hazard Area — flood insurance is typically required with a federally-backed mortgage.

More details

Base flood elevation: 10 ft. Source: FEMA National Flood Hazard Layer. Confirm on the FEMA Flood Map.

Disclaimer

No guarantee, warranty or representation of any kind is made regarding the completeness or accuracy of descriptions or measurements. Photos may be virtually staged or digitally enhanced and may not reflect actual property conditions. Offers of compensation are subject to change at the discretion of the seller. No financial or legal advice provided. Copyright ©2026. Based on information as of Nov 12, 2026 at 07:10pm EST.

$6,950,000 Listed price

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$139,000 Credit back

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