685 Harbor Ln, Key Biscayne, FL 33149
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FOR SALE
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685 Harbor Ln
Key Biscayne, FL 33149

  • 5 Beds
  • 5.5 Baths
  • 5,421 sqft

$6,950,000

Est. Mortgage $45,875/mo*
Get Pre-Qualified

$6,950,000

Est. Mortgage $45,875/mo*
Get Pre-Qualified
5 Beds
5.5 Baths
5,421 sqft

Home Highlights

Parking
1 Car Garage
Outdoor
Porch, Patio, Pool
Climate Control
Heating & Cooling
Price/Sqft
$1,282
Listed
113 days ago

Local Information

  • Map ViewExplore the area around 685 Harbor Ln.
  • Schools2 Preschool Schools1 Elementary School2 Middle Schools1 High School
  • Shop & Eat
-- mins to
Commute Destination

About this House

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.

Home Details for 685 Harbor Ln

Interior Features

Beds & Baths
Number of Bedrooms: 5Number of Bathrooms: 6Number of Bathrooms (full): 5Number of Bathrooms (half): 1
Dimensions and Layout
Living Area: 5421 Square Feet
Appliances & Utilities
Appliances: Dishwasher, Disposal, Dryer, Electric Water Heater, Ice Maker, Gas Range, RefrigeratorDishwasherDisposalDryerRefrigerator
Heating & Cooling
Heating: CentralHas CoolingAir Conditioning: Central AirHas HeatingHeating Fuel: Central
Windows, Doors, Floors & Walls
Window: Hurricane Shutters, Impact Glass, Plantation ShuttersDoor: High Impact DoorsFlooring: Marble, Tile, Wood
Levels, Entrance, & Accessibility
Stories: 2Entry Location: First Floor Entry, FoyerFloors: Marble, Tile, Wood
View
Has a ViewView: Other

Exterior Features

Exterior Home Features
Roof: AluminumPatio / Porch: Open Porch, PatioExterior: Lighting, BalconyFoundation: Pillar/Post/Pier, RaisedHas a Private Pool
Parking & Garage
Number of Garage Spaces: 1Number of Covered Spaces: 1Has a GarageHas an Attached GarageHas Open ParkingParking Spaces: 1Parking: Driveway
Pool
Pool: In Ground, Pool OnlyPool
Frontage
Not on Waterfront
Water & Sewer
Sewer: Public Sewer
Farm & Range
Not Allowed to Raise Horses
Surface & Elevation
Elevation Units: Feet

Days on Market

Days on Market: 113

Property Information

Year Built
Year Built: 2001
Property Type / Style
Property Type: ResidentialProperty Subtype: Single Family ResidenceStructure Type: House, AttachedArchitecture: House,Attached
Building
Building Name: Biscayne Key EstatesConstruction Materials: Piling Construction
Property Information
Parcel Number: 2452050011330

Price & Status

Price
List Price: $6,950,000Price Per Sqft: $1,282
Status Change & Dates
Possession Timing: Funding

Active Status

MLS Status: Active

Media

Location

Direction & Address
City: Key BiscayneCommunity: Biscayne Key Estates
School Information
Elementary School: KeybiscayneJr High / Middle School: Ponce De LeonHigh School: Coral Gables

Agent Information

Listing Agent
Listing ID: A11997896

Building

Building Area
Building Area: 6971 Square Feet

Community

Community Features: Beach Club Member Available

HOA

Association for this Listing: A-Miami Association of REALTORSNo HOA

Lot Information

Lot Area: 9000 sqft

Offer

Listing Terms: All Cash, Conventional

Miscellaneous

Mls Number: A11997896

Additional Information

Beach Club Member AvailableSource Internet Entire Listing Display
Last check for updates: about 22 hours ago
Listing courtesy of Marisela Gonzalez Servat, (786) 663-2842
Avanti Way Realty LLC
Alejandra Stalder, (617) 982-8541
Avanti Way Realty LLC
Originating MLS: A-Miami Association of REALTORS
Source: MIAMI, MLS#A11997896
Also Listed on MIAMI.

Market trends in Key Biscayne

Last updated June 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.58M
$113KMoM
Sale-to-List Price
—
Price per sq ft
$945
$37MoM
Available listings
159
9MoM

Price History for 685 Harbor Ln

DatePriceEventSource
08/03/2026$27,000Listed For RentMIAMI #A12063110
04/16/2026$6,950,000Listed For SaleMIAMI #A11997896
08/05/2019$3,485,000ListingRemovedAgent Provided
06/06/2019$3,100,000Sold
N/A
09/04/2018$3,485,000PriceChange
Agent Provided
05/08/2018$3,750,000PriceChange
Agent Provided
10/30/2017$3,975,000Listed For SaleAgent Provided
08/12/2017$4,400,000ListingRemovedAgent Provided
06/07/2017$4,400,000Listed For SaleAgent Provided
03/13/2017$4,400,000ListingRemovedAgent Provided
03/10/2017$4,400,000Listed For SaleAgent Provided

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Property Tax and Assessment

Year2025
Tax$40,335
Assessment$3,843,240
Home facts updated by county records

Comparable Sales for 685 Harbor Ln

Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
670 Allendale Rd, Key Biscayne, FL
0.09
Single-Family Home
$3,475,000
01/27/26
5
4.5
2,320
200 W McIntyre St, Key Biscayne, FL
0.27
Single-Family Home
$3,700,000
01/27/26
5
5
3,962
635 Curtiswood Dr, Key Biscayne, FL
0.10
Single-Family Home
$4,950,000
04/20/26
6
6
3,888
285 W Enid Dr, Key Biscayne, FL
0.18
Single-Family Home
$4,200,000
03/27/26
6
5.5
3,436
677 Hampton Ln, Key Biscayne, FL
0.20
Single-Family Home
$3,125,000
03/09/26
5
3.5
2,429
600 Allendale Rd, Key Biscayne, FL
0.14
Single-Family Home
$3,500,000
01/16/26
4
3.5
2,775
315 Palmwood Ln, Key Biscayne, FL
0.32
Single-Family Home
$4,400,000
04/08/26
5
5
3,230
561 Hampton Ln, Key Biscayne, FL
0.29
Single-Family Home
$4,820,000
08/15/25
6
6.5
4,165
797 Ridgewood Rd, Key Biscayne, FL
0.28
Single-Family Home
$6,500,000
03/31/26
7
7.5
5,528
465 Hampton Ln, Key Biscayne, FL
0.36
Single-Family Home
$4,475,000
04/10/26
4
3.5
3,666

Nearby homes

Get a sense of prices in the area by checking nearby homes.
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Assigned Schools

These are the assigned schools for 685 Harbor Ln.
View nearby schools on GreatSchools
The GreatSchools Rating compares schools on a variety of school quality indicators including test scores, college readiness, equity and more. Learn more.

What Locals Say about Key Biscayne

At least 116 Trulia users voted on each feature.

  • 94 % Say it's walkable to grocery stores

  • 94 % Say kids play outside

  • 90 % Say it's dog friendly

  • 90 % Say it's walkable to restaurants

  • 86 % Say people would walk alone at night

  • 86 % Say there are sidewalks

  • 79 % Say it's quiet

  • 79 % Say there's holiday spirit

  • 76 % Say they plan to stay for at least 5 years

  • 68 % Say parking is easy

  • 67 % Say streets are well-lit

  • 60 % Say there are community events

  • 58 % Say neighbors are friendly

  • 54 % Say yards are well-kept

  • 52 % Say there's wildlife

  • 50 % Say car is needed

Sourced by Trulia users. Learn more about our methodology.
  • Othoniel Marlieri
    "Key Biscayne os a perfect place to leave, but need more attention about basic things like a Super Market and safe environment. "
    0
    Flag
  • Mariafedc
    "There are lots of places that are dog friendly. There’s a dog park. Many dog owners live in the area. "
    0
    Flag
  • Lladom
    "Very safe and friendly community. Excellent for growing up kids. Traffic is the downside. Best town in South Florida by large."
    0
    Flag
  • Ericazc
    "Christmas, 4th of July, and many other beautiful family events happens in the island. Great place for the kids. "
    1
    Flag
  • Deborah B.
    "Have been spending winters here for 53 years. Love the family focus, beautiful beaches and public amenities. Thoughtful services like free Freebee pick ups and transportation to shopping make the Key accessible for teens to seniors. "
    0
    Flag
  • Mati P.
    "Its beautiful, peaceful and safe. I feel great living here. It’s lush, people are friendly, and respectful. It’s a great place to raise a family. The community is very pretty, Gardenia are manicured. There’s beautiful beaches and gorgeous homes. The school is pretty good as well. "
    1
    Flag
  • Ayishamartins
    "Some places do not allow dogs but there is a dog park weather like a bunch of dogs and mostly it’s pretty nice"
    1
    Flag
  • Mati P.
    "This is a safe neighborhood, kids walk by themselves all the time. It makes me feel safe to life here. "
    0
    Flag
  • Luis D.
    "Halloween’s decoration and fully of events in that day. Many sports in Village green. The community center has many events for all the family "
    0
    Flag
  • Adrian.grottola
    "Very friendly for pets (dogs) with great special spaces for them and many dog walkers in the island."
    0
    Flag
  • Mathew P.
    "The unity and the sense of community. The safety and sense of family oriented households that attribute to a beautiful place to live. "
    0
    Flag
  • Ivan M.
    "Save and quite perfect place for a family. There are as a public transportation electric’s cars around the island. "
    1
    Flag
  • Mayra
    "Great neighborhood! They celebrate Halloween, Christmas, Easter and much more! A lot of activities and sports for kids"
    0
    Flag
  • Efrao
    "Great place to live and I don’t commute everything is close by and i walk to work. Public transportation is great "
    0
    Flag
  • Kikisammataro
    "Halloween is a big event. Saturday has a farmers market. Kids are safe. Many schools and parks. Including dog park. "
    0
    Flag
  • Mayra
    "This is a very safe family neighborhood. Kids run freely and there’s a lot of activities for them. The school is great but the classrooms have more students than it should."
    0
    Flag
  • Ljsklein
    "My building is dog friendly. It seems like most of the people have dogs and love to walk them. We all clean up after our dogs. There’s poop bags in containers around the building with a place to dispose of them. There is also a dog park on the Key. "
    0
    Flag
  • Maria
    "I don’t have dogs. There’s a very nice dog park right next to the green field. Dogs are not allowed in the field, that is why they have their dog park, but the many owners don’t follow the rules which is very annoying. Most of all when you get the smell when exercising...."
    0
    Flag
  • Fabio
    "Great Place to leave. Good people, privacy, no crime. Walkable area, beach access, wide kind of services. Thanks "
    0
    Flag
  • Dani.montenegro
    "I can’t give my opinion because I don’t have dogs, cat or any other pet. And there are many dog owners in KB but most of them are not very respectful with people who don’t. "
    0
    Flag
  • Dcas
    "Great area for kids and young families. Very safe neighborhood and extremely easy to walk or ride a bike anywhere "
    0
    Flag
  • Kiragrossman
    "They would absolutely love the dog park. There are two sides for bigger dogs and smaller dogs. Everyone is very friendly "
    0
    Flag
  • Kiragrossman
    "This is a Great place to live. The neighborhoods are safe and it’s a great location. Great for children. Good restaurants shops"
    0
    Flag
  • Sandra S.
    "I love this neighborhood, I have everything I need is quiet and safe, walk to most places and has two state parks"
    1
    Flag
  • Kimbokak
    "Friendly, kind neighbors, close to everything, and safe. You can do pretty much everything on the island, but it is more expensive."
    1
    Flag
  • Garandrew
    "I am visiting for vacations and love this place. Nice neighborhood and friendly people. Very likely I will recommend it to my friends and family. "
    0
    Flag
  • Thengea
    "If you don't have to commute out of the island it's wonderful. Otherwise, every event causes so much traffic. Living on an island is a blessing but the peoole really don't say hello or even make eye contact at the stores or parks :/"
    0
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 685 Harbor Ln

  • What is the estimated monthly payment for 685 Harbor Ln?
    Based on a $6,950,000 list price with 20% down at today's rates, the estimated monthly payment for 685 Harbor Ln in Key Biscayne, FL is approximately $46,824 (about $36,092 principal & interest, $10,657 property taxes, and $75 homeowner's insurance). This is an estimate. Actual payment depends on your loan terms.
  • How does the list price for 685 Harbor Ln compare to homes in Key Biscayne?
    685 Harbor Ln in Key Biscayne, FL is listed at $6,950,000, about 339% above the $1.58M median sale price in Key Biscayne.
  • What do residents say about Key Biscayne?
    Residents describe Key Biscayne, FL as walkable to grocery stores, dog-friendly, and walkable to restaurants. See homes for sale in Key Biscayne, FL.
  • What are the closest schools to 685 Harbor Ln?
    The closest schools to 685 Harbor Ln in Key Biscayne, FL are Coral Gables Senior High School (Pre-K, rated 5/10), Key Biscayne K-8 Center (Pre-K/Elementary/Middle, rated 8/10), Ponce De Leon Middle School (rated 6/10).
  • Does 685 Harbor Ln have air conditioning?
    Yes, 685 Harbor Ln in Key Biscayne, FL has air conditioning.
  • Does 685 Harbor Ln have a pool?
    Yes, 685 Harbor Ln in Key Biscayne, FL has a pool.
Marisela Gonzalez Servat, Avanti Way Realty LLC
Agent Phone: (786) 663-2842
IDX information is provided exclusively for personal, non-commercial use, and may not be used for any purpose other than to identify prospective properties consumers may be interested in purchasing. Information is deemed reliable but not guaranteed.
685 Harbor Ln, Key Biscayne, FL 33149 is a 5 bedroom, 6 bathroom, 5,421 sqft single-family home built in 2001. This property is currently available for sale and was listed by MIAMI on Apr 16, 2026. The MLS # for this home is MLS# A11997896.