About This Home

This 5-bedroom, 6-bathroom single family at 685 Harbor Ln in Key Biscayne, FL is listed for $6,950,000 ($1,282 per sqft). Built in 2001, the home offers 5,421 sqft of living space on a 0.21 acres lot.

Key Features

  • Built in 2001
  • 0.21 acre lot
  • 2 stories
  • Private pool

Property Details

2 stories
5 full, 1 half
1-car garage
2001

Amenities

PoolHardwoodA/C
Listing Description

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.

Monthly Cost Estimate

$37,170/mo

20% down · 6.5% · 30 years

Principal$5,026
Interest$30,117
Insurance$2,027

Estimates only. Actual payments may vary.

Location

685 Harbor Ln

Key Biscayne, FL 33149

BISCAYNE KEY ESTATES

Features & Amenities

Interior Features

Bedroom on Main LevelCloset CabinetryEntrance FoyerFirst Floor EntryKitchen IslandUpper Level PrimaryBarWalk-In Closet(s)

Exterior Features

BalconySecurity/High Impact DoorsLightingPorchPatioStorm/Security Shutters

Property Details

Flooring

MarbleTileWoodHardwood

Pool Features

Pool

Outdoor Features

PatioPorch

Parking

GarageDriveway

Heating

Central

Cooling

Central Air

Appliances

DryerDishwasherElectric Water HeaterDisposalGas RangeIce MakerRefrigerator

Questions & Answers

This 5-bedroom, 6-bathroom single family at 685 Harbor Ln is listed at $6,950,000 ($1,282/sqft). The estimated monthly payment is $37,170 based on 20% down, a 30-year loan at 6.5% interest, estimated insurance.

Key features include: Built in 2001, 0.21 acre lot, 2 stories, Private pool. Interior Features: Bedroom on Main Level, Closet Cabinetry, Entrance Foyer. Exterior Features: Balcony, Security/High Impact Doors, Lighting.

This property is listed by Marisela Gonzalez Servat.

MS

Marisela Gonzalez Servat

License 3280961

Agent at Avanti Way Realty

Listed by Avanti Way Realty · Broker phone: (788) 888-5884 · View on Broker Site · Broker website

MLS# A11997896· Source: Miami REALTORS®· Added to PropertySimple today

Copyright © 2026 Miami REALTORS®. All rights reserved. All information provided by the listing agent/broker is deemed reliable but is not guaranteed and should be independently verified.

685 Harbor Ln, Key Biscayne, FL 33149

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