820 Harbor Dr, Key Biscayne, FL 33149
OFF MARKET

820 Harbor Dr
Key Biscayne, FL 33149

  • 3 Beds
  • 2 Baths
  • 2,463 sqft (on 0.76 acres)

$20,108,900

Trulia Estimate
as of Aug 16, 2026
Est. Refi. Payment $132,908/mo*
Refinance Your Home

$20,108,900

Trulia Estimate
as of Aug 16, 2026
Est. Refi. Payment $132,908/mo*
Refinance Your Home
3 Beds
2 Baths
2,463 sqft
(on 0.76 acres)

Home Value

Trulia Estimate
$20.1M
Since last month
Decreased$250K (-1.2%)
Since last year
Increased$3M (+16.6%)
Since last sale
Increased$13M (+204%)
Learn more about this home's value by checking out its Trulia Estimate, the value of nearby homes, and how much similar homes have sold for.

Trulia Estimate

The of this home's value increased by +187% in the last 10 years
MonthEstimated value
2026
August 2026$20.07M
July 2026$19.82M
June 2026$20.32M
May 2026$18.2M
April 2026$17.87M
March 2026$17.84M
February 2026$17.64M
January 2026$17.53M
2025
2024
2023
2022
2021
2020
2019
2018
2017
2016

Comparable sales

These are recently sold homes that have a similar location or other similar features to this home, like bedrooms, bathrooms, and square footage. Get a sense of the expected prices in the area by viewing these homes.
Address
Distance
Property Type
Sold Price
Sold Date
Bed
Bath
Sqft
669 S Mashta Dr, Key Biscayne, FL
0.24
Single-Family Home
$5,200,000
08/11/26
4
3.5
3,382
141 Island Dr, Key Biscayne, FL
0.46
Single-Family Home
$4,120,000
02/18/26
3
3
2,927
341 Island Dr, Key Biscayne, FL
0.16
Single-Family Home
$3,700,000
02/10/26
3
2.5
2,422
591 N Mashta Dr, Key Biscayne, FL
0.13
Single-Family Home
$14,000,000
08/03/26
4
4.5
4,290
725 Fernwood Rd, Key Biscayne, FL
0.41
Single-Family Home
$2,400,000
10/15/25
3
2
2,159
92 W Mashta Dr, Key Biscayne, FL
0.38
Single-Family Home
$3,230,000
09/12/25
4
3
2,403
600 Allendale Rd, Key Biscayne, FL
0.31
Single-Family Home
$3,500,000
01/16/26
4
3.5
2,775
670 Allendale Rd, Key Biscayne, FL
0.24
Single-Family Home
$3,475,000
01/27/26
5
4.5
2,320
677 Hampton Ln, Key Biscayne, FL
0.30
Single-Family Home
$3,125,000
03/09/26
5
3.5
2,429
699 N Mashta Dr, Key Biscayne, FL
0.22
Single-Family Home
$1,200,000
06/05/26
4
4.5
3,241

Nearby home prices

Get a sense of expected prices in the area by checking the value of nearby homes.
Address
Distance
Price
Bed
Bath
Sqft
Status
815 Harbor Dr, Key Biscayne, FL 33149
0.05
$3,399,000
3
2
1,915
Off Market
755 Harbor Dr, Key Biscayne, FL 33149
0.11
$4,408,700
5
5.5
3,534
Off Market
299 W Mashta Dr, Key Biscayne, FL 33149
0.11
$4,352,300
4
5
3,651
Off Market
420 Island Dr, Key Biscayne, FL 33149
0.11
$12,485,000
6
7
6,405
For Sale
591 N Mashta Dr, Key Biscayne, FL 33149
0.13
$14,000,000
4
4.5
4,290
Recently Sold
685 Harbor Ln, Key Biscayne, FL 33149
0.19
$6,950,000
5
5.5
5,421
For Sale
269 W Mashta Dr, Key Biscayne, FL 33149
0.17
$2,941,300
5
4
2,867
Off Market
600 N Mashta Dr, Key Biscayne, FL 33149
0.16
$5,346,200
4
3
2,416
Off Market
760 Allendale Rd, Key Biscayne, FL 33149
0.20
$2,850,000
-
-
-
Recently Sold
Address Not Disclosed, Key Biscayne, FL 33149
0.20
$9,102,200
6
6.5
-
Off Market
551 S Mashta Dr, Key Biscayne, FL 33149
0.16
$5,598,100
6
5
3,245
Off Market
631 N Mashta Drive, Key Biscayne, FL 33149
0.18
$18,500,000
4
4.5
2,255
For Sale

Local Information

  • Map ViewExplore the area around 820 Harbor Dr.
  • Schools2 Preschool Schools1 Elementary School2 Middle Schools1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Property Type
Single-Family Home
Year Built
1956
Lot Size
0.76 acres
Living Area
2,463 sqft
Price/Sqft
$8,164

About this House

Prime Waterfront Property on Hurricane Harbor, one of the last waterfront redevelopment opportunities on Key Biscayne. This property is at the end of the prestigious Harbor Drive and on a double lot of 18,532SF with 90 feet of waterfront. It has an expansive, unobstructed South and West views of Biscayne Bay and Mashta Island, with deep-water access to Biscayne Bay and Ocean. Enjoy the view of the most beautiful sunsets. Beach Club membership included. Awarded House of the Year in 1956, sold AS IS. Brokered And Advertised By: Ocean Palm Realty, Inc. Listing Agent: Maritza Meitzner-Rodrigue
820 Harbor Dr, Key Biscayne, FL 33149 is a 3 bedroom, 2 bathroom, 2,463 sqft single-family home built in 1956. It last sold for $6,600,000 on Dec 14, 2012. It is currently off market. The Trulia Estimate is $20,108,900, with a rent estimate of $8,000/month.

Home Details for 820 Harbor Dr

Interior Features

Levels, Entrance, & Accessibility
Stories: 2

Exterior Features

Exterior Home Features
Roof: OtherDeckExterior: StuccoPatioPorch
Pool
Pool

Property Information

Year Built
Year Built: 1956Year Updated: 1966
Property Type / Style
Property Type: Single Family Home

Community

Units in Building: 1

Lot Information

Lot Area: 0.76 acres

Price and Tax history

DateEventPrice
Dec 14, 2012
Source: N/A
Sold
$6,600,000
Oct 10, 2012
Source: Agent Provided
Pending
$7,500,000
Jul 28, 2012
Source: Agent Provided
Listed For Sale
$7,500,000

Market trends in Key Biscayne

Last updated July 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
$1.56M
$26.67KMoM
Sale-to-List Price
94.6%
Price per sq ft
$981
$37MoM
Available listings
144
15MoM
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Around this home

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. "
    2
    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. "
    1
    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
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Homes for sale near 820 Harbor Dr

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Off Market Homes Near 820 Harbor Dr

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Frequently asked questions about 820 Harbor Dr

  • What is 820 Harbor Dr estimated to be worth?
    Trulia's estimated value for 820 Harbor Dr in Key Biscayne, FL is $20,108,900.
  • What is the price history for 820 Harbor Dr?
    820 Harbor Dr in Key Biscayne, FL last sold for $6,600,000 in December 2012.
  • Is Key Biscayne a buyer's or seller's market?
    Key Biscayne is currently a buyer's market, based on recent for-sale activity.
  • What's the median sale price in Key Biscayne?
    The median sale price in Key Biscayne is $1.56M. That is down $26.67K from the prior month.
  • Does 820 Harbor Dr have a pool?
    Yes, 820 Harbor Dr in Key Biscayne, FL has a pool.
  • How big is the lot at 820 Harbor Dr?
    The lot at 820 Harbor Dr in Key Biscayne, FL is about 0.76 acres (33,236 sq ft).