685 Harbor Ln, Key Biscayne, Florida 33149
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$6,950,000

Single Family Home for Sale, 685 Harbor Ln, Key Biscayne, Florida 33149

  • MLS#A11997896
  • 5
  • 6
  • 504 m² (5,421 ft²)

Listed By Avanti Way Realty LLC

The Single Family Home for Sale located at 685 Harbor Ln, Key Biscayne, Florida 33149 is currently for sale. This property has 5 bedrooms, 6 bathrooms.

Date Updated : Sep 8, 2026

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.

Location

685 Harbor Ln, Key Biscayne, Florida 33149

685 Harbor Ln, Key Biscayne, Florida 33149

Property features

Property

  • Property size: 504 m² (5,421 ft²)
  • Features: GaragePorch OpenBalconyPatioDrivewayExterior LightingStorage SpaceWalkin Closets

Lot/Land

  • Land/Lot size: 836 m² (9,000 ft²)

Construction

  • Year built: 2001
  • Roofing: Aluminium
  • Construction: Elevated ConstructionPiling Construction

Parking/Garage

  • Garage description: Attached Garage

Bedrooms

  • Bedrooms: 5

Bathrooms

  • Total bathrooms: 6
  • Full bathrooms: 5
  • Half baths: 1

Other Rooms

  • Room types: Family RoomEntry FoyerGreat Room
  • Kitchen description: Island
  • Appliances: Electric Water HeaterRangeRefrigeratorDisposalDryerIcemakerDishwasher

Interior Features

  • Windows: Plantation ShuttersHurricane Shutters
  • Floors: TileWoodMarble
  • Trim: Closet Cabinetry
  • Bar: Bar

Exterior Features

  • Outdoor spaces: BalconyPatio
  • Carport spaces:

Pool and Spa

  • Pool: Inground

recreational

  • recreational: Swimming Pool

Heating and Cooling

  • Heating System: Central
  • Cooling System: Central AC

Utilities

  • Other utilities: Public SewerMunicipal Water

Community

School information

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