$6,950,000
685 Harbor Ln
Key Biscayne, FL, 33149
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.
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.
Property Details
Price:
$6,950,000
MLS #:
A11997896
Status:
Active
Beds:
5
Baths:
5.5
Type:
Single Family
Subtype:
Single Family Residence
Subdivision:
BISCAYNE KEY ESTATES
Neighborhood:
biscaynekeyestates
Listed Date:
Apr 16, 2026
Finished Sq Ft:
5,421
Total Sq Ft:
6,971
Year Built:
2001
Schools
Elementary School:
Keybiscayne
Middle School:
Ponce De Leon
High School:
Coral Gables
Interior
Appliances
Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Gas Range, Refrigerator
Bathrooms
5 Full Bathrooms, 1 Half Bathroom
Cooling
Central Air
Flooring
Marble, Tile, Wood
Heating
Central
Interior Features
First Floor Entry, Bar, Closet Cabinetry, Cooking Island, Entrance Foyer, Walk-In Closet(s), Family Room, Great Room, Storage
Exterior
Architectural Style
Attached, Two Story
Attached Garage YN
1
Community Features
Beach Club Member Available
Construction Materials
Elevated Construction, Piling Construction
Covered Spaces
1
Direction Faces
Northwest
Exterior Features
Lighting, Open Balcony
Garage Spaces
1
Lot Features
1/4 To Less Than 1/2 Acre Lot
Open Parking YN
1
Parking Features
Driveway
Patio And Porch Features
Open Balcony, Open Porch, Patio
Roof
Aluminum
View
Other
Window Features
Hurricane Shutters, Impact Glass, Plantation Shutters
Financial
Tax Year
2025
Taxes
$40,335
Mortgage Calculator
Map
Current real estate data for Single Family in Key Biscayne as of Apr 18, 2026
59
Single Family Listed
192
Avg DOM
2,121
Avg $ / SqFt
$8,848,847
Avg List Price
Community
- Address685 Harbor Ln Key Biscayne FL
- SubdivisionBISCAYNE KEY ESTATES
- CityKey Biscayne
- CountyMiami-Dade County
- Zip Code33149
Subdivisions in Key Biscayne
- 155 SUNRISE CONDO
- 544-548 FERNWOOD CONDO
- BAHAMA HOUSE CONDO,Bahama House
- BAHAMA HOUSE SOUTH CONDO
- BAHIA MAR CONDO OF KEY BI
- BISCAYNE KEY ESTATES
- BLUE PELICAN CONDO
- CAPE FLA CLUB CONDO CLUST
- CAPE FLA SUB SEC 2
- CAPE FLORIDA CLIB CONDO P
- CAPE FLORIDA CLUB CONDO P
- CAPE FLORIDA CLUB CONDO P,CAPE FLORIDA CLUB
- CAPE FLORIDA CLUB CONDO P,CAPE FLORIDA CLUB CO
- CAPE FLORIDA SUB SEC 1
- CAPE FLORIDA SUB SEC 1,CAPE FLORIDA SUB
- CAPE FLORIDA SUB SEC 3
- CAPE FLORIDA SUB SEC 3,Village Estate
- CASA DEL MAR
- CASA DEL MAR CONDO
- CASA DEL MAR CONDO,CASA DEL MAR
- CAY POLYNESIA CONDO
- CLUB TOWER ONE CONDO
- CLUB TOWER ONE CONDO,Ocean Club
- CLUB TOWER ONE CONDO,THE OCEAN CLUB
- CLUB TOWER THREE CONDO
- CLUB TOWER TWO CONDO
- CLUB TOWER TWO CONDO,Ocean Club
- CLUB TOWER TWO CONDO,THE OCEAN CLUB
- COMMODORE CLUB SOUTH COND
- COMMODORE CLUB SOUTH COND,COMMODORE CLUB SOUTH
- COMMODORE CLUB WEST CONDO
- COMMODORE CLUB WEST CONDO,COMMODORE CLUB
- CRANDON TOWER CONDO
- G B VILLAS
- GALEN 250 CONDO
- GALEN BREAKERS CONDOMINIU
- GALEN BREAKERS CONDOMINIU,GALEN BREAKERS CONDO
- Galen Drive Condo Apt
- GALEN DRIVE CONDO APTS
- GOVERNORS LODGE ASSOC CON
- GRAND BAY RESIDENCES COND
- GRAND BAY RESIDENCES COND,GRAND BAY
- GRAND BAY TOWER CONDO
- GRAND BAY TOWER CONDO,GRAND BAY TOWER COND
- GRAPETREE TOWNHOUSE CONDO
- HOLIDAY COLONY
- HURRICANE COVE
- INDIES CONDO
- ISLAND HOUSE
- ISLAND HOUSE APT INC – CO
- ISLAND HOUSE APT INC – CO,Island House Apt Inc
- KEY BISC AMBASSADOR CONDO
- KEY BISC AMBASSADOR CONDO,KEY BISC AMBASSADOR
- KEY BISC COMMODORE CLUB,COMMODORE CLUB
- Key Biscayne Ambassador,KB Ambassador
- KEY BISCAYNE COMMODORE CL
- KEY BISCAYNE COMMODORE CL,COMMODORE CLUB ONE
- KEY BISCAYNE COMMODORE CL,Commodore East
- KEY BISCAYNE COMMODORE CL,KEY BISCAYNE COMMODO
- KEY BISCAYNE ONE HUNDRED
- KEY BISCAYNE VI CONDO
- KEY BISCAYNE VI CONDO,BRICKELL KEY VI COND
- KEY BISCAYNE VI CONDO,KEY BISCAYNE VICONDO
- KEY BISCAYNES COMMODORE C
- KEY BISCAYNES COMMODORE C,KEY BISCAYNES COMMOD
- KEY CASSA CONDO
- KEY CASSA CONDOMINIUMS
- KEY COLONY 2-OCEAN SOUND,KEY COLONY 2-OCEAN S
- KEY COLONY CONDO #4
- KEY COLONY CONDO #4,KEY COLONY CONDO 4
- Key Colony Condo 02
- KEY COLONY NO 1
- KEY COLONY NO 1,KEY COLONOY 1
- KEY COLONY NO 1,Key Colony
- KEY COLONY NO 2 CONDO
- KEY COLONY NO 2 CONDO,KEY COLONY NO 2 COND
- KEY COLONY NO 4 CONDO
- KEY COLONY NO 4 CONDO,BOTANICA/FERNERY
- KEY COLONY NO 4 CONDO,KEY COLONY
- KEY COLONY NO 4 CONDO,KEY COLONY NO 4 COND
- KEY ISLANDER CONDO
- Key Islander Condominium,Key Islander Condomi
- KEY TOWNHOUSE CONDO
- LAKE TOWER CONDO
- LAKE TOWER CONDO,Lake Tower
- LAKE TOWER CONDO,THE OCEAN CLUB
- LAKE VILLA THREE CONDO
- LAKE VILLA THREE CONDO,LAKE VILLA THREE CON
- LAKE VILLA TWO CONDO
- Le Phare Condo,Le phare
- LE PHARE KEY BISCAYNE CON
- Mar Azul,Mar Azul Condo
- MAR-AZUL CONDO
- MAR-AZUL CONDO,Mar Azul
- MASHTA ISLAND
- MASHTA ISLAND A REPLAT OF
- MATHESON ESTATES
- MATHESON ESTATES,MATHESON STATES
- OCEAN LANE PLAZA CONDO
- OCEAN TOWER ONE CONDO
- OCEAN TOWER TWO CONDO
- OCEAN TOWER TWO CONDO,Ocean Club
- OCEAN TOWER TWO CONDO,OCEAN TOWER TWO COND
- OCEAN TOWER TWO CONDO,THE OCEAN CLUB
- OCEAN VILLAGE CONDO
- OCEAN VILLAGE CONDO,Ocean Village Condo
- OCEANA KEY BISCAYNE CONDO
- OCEANA KEY BISCAYNE CONDO,OCEANA
- OCEANA KEY BISCAYNE CONDO,OCEANA KEY BISCAYNE
- OCEANSOUND
- OCEANSOUND,KEY COLONY NO 2 COND
- RESORT VILLA ONE CONDO
- RESORT VILLA ONE CONDO,RESORT VILLA ONE CON
- RESORT VILLA TWO CONDO
- RESORT VILLA TWO CONDO,RESORT VILLA TWO CON
- RESORT VILLA TWO CONDO,The Ocean Club
- SANDS OF KEY BISCAYNE CON
- SMUGGLERS COVE
- SOLIMAR CONDO OF KEY BISC
- SUNRISE CLUB CONDO
- SUNRISE CLUB CONDO,100 SUNRISE
- SUNRISE MANOR CONDO
- THE EMERALD BAY
- THE EMERALDBAY @ KEY COLO
- THE EMERALDBAY @ KEY COLO,KEY COLONY
- THE EMERALDBAY @ KEY COLO,THE EMERALD BAY
- THE EMERALDBAY @ KEY COLO,THE EMERALDBAY @ KEY
- THE EMERALDBAY @ KEY COLON
- THE EMERALDBAY KEY COLONY
- THE EMERALDBAY KEY COLONY,THE EMERALDBAY
- The Ocean Club
- THE PALMS OF KEY BISCAYNE
- THE PYRAMIDS @ KEY BISCAY
- TIDEMARK KEY COLONY NO 1,Key Colony
- TOWERS OF KEY BISCAYNE CO
- TOWERS OF KEY BISCAYNE CO,The Towers of Key Bi
- TOWERS OF KEY BISCAYNE CO,TOWERS OF KEY BISCAY
- TOWERS OF KEY BISCAYNE CON
- TROPICAL ISLE HOMES SUB
- TROPICAL ISLE HOMES SUB 1
- TROPICAL ISLE HOMES SUB 1,KEY BISCAYNE
- TROPICAL ISLE HOMES SUB 2
- TROPICAL ISLE HOMES SUB 2N
- TROPICAL ISLE HOMES SUB 3
- TROPICAL ISLE HOMES SUB 3,TROPICAL ISLE HOMES
- TROPICAL ISLE HOMES SUB 4
- TROPICAL ISLE HOMES SUB 4,TROPIAL ISLE HOMES
- TROPICAL ISLES HOMES,TROPICAL ISLE HOMES
Similar Listings Nearby
Property Summary
- Located in the BISCAYNE KEY ESTATES subdivision, 685 Harbor Ln Key Biscayne FL is a Single Family for sale in Key Biscayne, FL, 33149. It is listed for $6,950,000 and features 5 beds, 6 baths, and has approximately 5,421 square feet of living space, and was originally constructed in 2001. The current price per square foot is $1,282. The average price per square foot for Single Family listings in Key Biscayne is $2,121. The average listing price for Single Family in Key Biscayne is $8,848,847.

685 Harbor Ln
Key Biscayne, FL













































