340 Harbor Dr, Key Biscayne, FL 33149
OFF MARKET

$21,619,300

Trulia Estimate
  • 5 Beds
  • 4.5 Baths
  • 4,952 sqft (on 0.55 acres)

340 Harbor Dr, Key Biscayne, FL 33149

Est. Refi. Payment $148,524/mo*
Refinance Your Home

Home Value

Trulia Estimate
$21.6M
Since last month
Decreased$91K (-0.4%)
Since last year
Increased$3M (+15.4%)
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 +89% in the last 10 years
MonthEstimated value
2026
November 2026$21.26M
October 2026$21.11M
September 2026$21.35M
August 2026$20.7M
July 2026$20.45M
June 2026$21.59M
May 2026$19.93M
April 2026$19.23M
March 2026$19.09M
February 2026$19.11M
January 2026$18.78M
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
230 Harbor Dr, Key Biscayne, FL
0.20
Single-Family Home
$17,500,000
07/08/26
7
7.5
6,240
335 Harbor Dr, Key Biscayne, FL
0.05
Single-Family Home
$4,820,000
03/16/26
4
3
2,959
269 Cranwood Dr, Key Biscayne, FL
0.19
Single-Family Home
$3,800,000
10/14/26
5
4
2,821
315 Palmwood Ln, Key Biscayne, FL
0.23
Single-Family Home
$4,400,000
04/08/26
5
5
3,230
261 Greenwood Dr, Key Biscayne, FL
0.21
Single-Family Home
$6,275,000
12/11/25
5
5.5
3,525
200 W McIntyre St, Key Biscayne, FL
0.43
Single-Family Home
$3,700,000
01/27/26
5
5
3,962
465 Hampton Ln, Key Biscayne, FL
0.34
Single-Family Home
$4,475,000
04/10/26
4
3.5
3,666
315 W Palmwood Ln, Key Biscayne, FL
0.23
Single-Family Home
$4,400,000
04/16/26
4
2.5
3,300
445 Ridgewood Rd, Key Biscayne, FL
0.38
Single-Family Home
$6,400,000
10/20/26
5
5.5
3,688
5 Harbor Point, Key Biscayne, FL
0.37
Single-Family Home
$23,500,000
07/06/26
3
5
10,926

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
330 Harbor Dr, Key Biscayne, FL 33149
0.02
$31,320,600
6
7.5
7,178
Off Market
350 Harbor Dr, Key Biscayne, FL 33149
0.02
$24,197,700
7
8.5
8,928
Off Market
310 Harbor Dr, Key Biscayne, FL 33149
0.04
$26,882,600
6
7
9,617
Off Market
360 Harbor Dr #1, Key Biscayne, FL 33149
0.04
-
5
8.5
8,903
Off Market
355 Harbor Dr, Key Biscayne, FL 33149
0.05
$5,707,600
4
3
3,238
Off Market
335 Harbor Dr, Key Biscayne, FL 33149
0.05
$4,820,000
4
3
2,959
Recently Sold
325 Harbor Dr, Key Biscayne, FL 33149
0.06
$4,751,400
5
6.5
3,650
Off Market
300 Harbor Dr, Key Biscayne, FL 33149
0.06
$20,850,800
7
5
7,814
Off Market
380 Harbor Dr, Key Biscayne, FL 33149
0.06
$20,938,400
5
8
7,903
Off Market
365 Harbor Dr, Key Biscayne, FL 33149
0.06
$5,778,200
6
6
4,000
Off Market
380 Harbor Ct, Key Biscayne, FL 33149
0.07
$4,854,300
7
6
4,175
Off Market
370 Harbor Ct, Key Biscayne, FL 33149
0.07
$4,163,800
3
2
2,404
Off Market
397 Harbor Ct, Key Biscayne, FL 33149
0.07
$3,801,000
4
3
2,734
Off Market
315 Harbor Dr, Key Biscayne, FL 33149
0.08
$5,436,400
7
7
3,850
Off Market
360 Harbor Ct, Key Biscayne, FL 33149
0.08
$3,472,800
4
3.5
2,430
Off Market
375 Harbor Dr, Key Biscayne, FL 33149
0.08
$3,575,600
4
3
2,470
Off Market
398 Harbor Dr, Key Biscayne, FL 33149
0.08
$19,656,400
3
3
1,806
Off Market
395 Harbor Ct, Key Biscayne, FL 33149
0.08
$4,736,900
4
2
1,764
Off Market
290 Harbor Dr, Key Biscayne, FL 33149
0.08
-
5
-
5,532
Off Market
385 W Heather Dr, Key Biscayne, FL 33149
0.09
$3,850,700
5
4
2,835
Off Market

Local Information

  • Map ViewExplore the area around 340 Harbor Dr.
  • Schools2 Preschool Schools1 Elementary School2 Middle Schools1 High School
  • Shop & Eat
-- mins to
Commute Destination

Home Highlights

Single-Family Home
Built in 1956
0.55 acre lot
4,952 sqft
$4,366/sqft
Garage

About this House

What's unique:Master suiteBreakfast areaUpscale kitchenExpansive drivewayMagnificent key biscayne gem
This single-family home is located at 340 Harbor Dr, Key Biscayne, FL. 340 Harbor Dr is in Key Biscayne, FL and in ZIP code 33149. This property has 5 bedrooms, 5 bathrooms and approximately 4,952 sqft of floor space. This property has a lot size of 0.55 acres and was built in 1956.
340 Harbor Dr, Key Biscayne, FL 33149 is a 5 bedroom, 5 bathroom, 4,952 sqft single-family home built in 1956. More recently, it was listed as a rental in May 2023 with an asking price of $45,000 per month. That rental listing was removed on November 7, 2023. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $21,619,300.

Home Details for 340 Harbor Dr

Interior Features

Heating & Cooling
Heating: Forced Air, ElectricAir ConditioningCooling System: CentralHeating Fuel: Forced Air
Levels, Entrance, & Accessibility
Stories: 2Floors: TileGated Entry
Interior Details
Types of Rooms: Walk In Closet, Master Bath
Appliances & Utilities
DishwasherDisposalDryerMicrowaveRefrigeratorWasher

Exterior Features

Exterior Home Features
Roof: OtherExterior: Cement ConcretePorch
Pool
Pool
Parking & Garage
GarageParking Spaces: 2Parking: Garage Attached, Off Street, On Street

Property Information

Year Built
Year Built: 1956Year Updated: 2023
Property Type / Style
Property Type: Single Family Home

Rental Terms, Policies & Fees

Furnished

Community

Units in Building: 1

Lot Information

Lot Area: 0.55 acres

Mobile R/V

RV Parking
Rv Parking

Additional Information

Assisted Living Community

Price and Tax history

DateEventPrice
Nov 7, 2023
Source: Zillow Rentals
ListingRemoved
Jul 11, 2023
Source: MIAMI #A11389783
PriceChange
$38,000
Price decreased by 16%
May 18, 2023
Source: MIAMI #A11389783
Listed For Rent
$45,000
May 12, 2020
Source: Agent Provided
ListingRemoved
$28,000
Apr 24, 2020
Source: Agent Provided
Listed For Rent
$28,000

Market trends in Key Biscayne

Last updated October 2026
Buyer'sMarketSeller'sMarket
Avg. sale price
—
Sale-to-List Price
—
Price per sq ft
—
Available listings
143
4MoM
Sourced by Trulia Market Trends

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
    Flag

LGBTQ Local Legal Protections

Frequently asked questions about 340 Harbor Dr

  • What is 340 Harbor Dr estimated to be worth?
    Trulia's estimated value for 340 Harbor Dr in Key Biscayne, FL is $21,619,300.
  • Is Key Biscayne a buyer's or seller's market?
    Key Biscayne is currently a balanced market, based on recent for-sale activity.
  • What do residents say about Key Biscayne?
    Residents describe Key Biscayne, FL as walkable to grocery stores, dog-friendly, and walkable to restaurants. See recently sold homes in Key Biscayne, FL.
  • What are the closest schools to 340 Harbor Dr?
    The closest schools to 340 Harbor Dr 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 5/10).
  • Does 340 Harbor Dr have air conditioning?
    Yes, 340 Harbor Dr in Key Biscayne, FL has air conditioning.
  • Does 340 Harbor Dr have a pool?
    Yes, 340 Harbor Dr in Key Biscayne, FL has a pool.

Explore by feature - Pet Friendly

72 pet-friendly rentals in Key Biscayne, FL

Explore by feature - Garage

52 rentals with a garage in Key Biscayne, FL

Explore by feature - Air Conditioning

105 rentals with air conditioning in Key Biscayne, FL

Explore by feature - Pool

166 homes with a pool in Key Biscayne, FL

Explore by feature - Washer/dryer

149 rentals with a washer/dryer in Key Biscayne, FL

Explore by feature - Outdoor Space

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