$15,539,900
- 7 Beds
- 5 Baths
- 6,949 sqft (on 0.41 acres)
850 Harbor Dr, Key Biscayne, FL 33149
Est. Refi. Payment $102,809/mo*
Refinance Your HomeCurrently Off Market - Sold Sep 7, 2010 for $3,300,000
Home Value
Trulia Estimate
$15.5MSince last month
Increased$555K (+3.7%)Since last year
Increased$2M (+14%)Since last sale
Increased$12M (+376.9%)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 +56% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $15.74M |
| July 2026 | $15.18M |
| June 2026 | $15.43M |
| May 2026 | $14.45M |
| April 2026 | $14.34M |
| March 2026 | $14.43M |
| February 2026 | $13.9M |
| January 2026 | $13.75M |
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 |
|---|---|---|---|---|---|---|---|
0.24 | Single-Family Home | $6,500,000 | 03/31/26 | 7 | 7.5 | 5,528 | |
0.18 | Single-Family Home | $14,000,000 | 08/03/26 | 4 | 4.5 | 4,290 | |
0.43 | Single-Family Home | $3,700,000 | 01/27/26 | 5 | 5 | 3,962 | |
0.29 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.36 | Single-Family Home | $5,690,000 | 06/15/26 | 6 | 5 | 3,584 | |
0.35 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.28 | Single-Family Home | $1,200,000 | 06/05/26 | 4 | 4.5 | 3,241 | |
0.39 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.32 | Single-Family Home | $3,125,000 | 03/09/26 | 5 | 3.5 | 2,429 | |
0.30 | Single-Family Home | $5,200,000 | 08/11/26 | 3 | 3.5 | 3,343 |
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 |
|---|---|---|---|---|---|---|
0.07 | $12,485,000 | 6 | 7 | 6,405 | For Sale | |
0.10 | $3,399,000 | 3 | 2 | 1,915 | Off Market | |
0.14 | $4,343,200 | 4 | 5 | 3,651 | Off Market | |
0.17 | $3,073,800 | 5 | 4 | 2,867 | Off Market | |
0.18 | $4,416,600 | 5 | 5.5 | 3,534 | Off Market | |
0.19 | $19,500,000 | 6 | 9 | 7,742 | For Sale | |
0.18 | $14,000,000 | 4 | 4.5 | 4,290 | Recently Sold | |
0.22 | $2,850,000 | - | - | - | Recently Sold | |
0.18 | $5,660,900 | 6 | 5 | 3,245 | Off Market | |
0.18 | $18,356,600 | 5 | 6.5 | 5,226 | Off Market | |
0.22 | $12,263,000 | 6 | 6 | 5,191 | Off Market | |
0.19 | $19,900,000 | 5 | 4 | 3,085 | For Sale |
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
2011
Lot Size
0.41 acres
Living Area
6,949 sqft
Price/Sqft
$2,236
Parking
Garage
About this House
110 Cape Florida Dr,Key Biscayne, FL 33149
850 Harbor Dr, Key Biscayne, FL 33149 is a 7 bedroom, 5 bathroom, 6,949 sqft single-family home built in 2011. It last sold for $3,300,000 on Sep 7, 2010. More recently, it was listed as a rental in June 2019 with an asking price of $19,000 per month. That rental listing was removed on August 16, 2019. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $15,539,900, with a rent estimate of $63,557/month.
Home Details for 850 Harbor Dr
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Levels, Entrance, & Accessibility Stories: 2 |
Appliances & Utilities DryerWasher |
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Exterior Home Features Roof: TileExterior: StuccoFoundation Type: FootingPatio |
Pool Pool |
Parking & Garage GarageParking: Garage |
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Year Built Year Built: 2011Year Updated: 2011 |
Property Type / Style Property Type: Single Family Home |
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Furnished |
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Units in Building: 1 |
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Lot Area: 0.41 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Aug 16, 2019 Source: Agent Provided | ListingRemoved | $19,000 |
Jun 9, 2019 Source: Agent Provided | Listed For Rent | $19,000 |
Jan 23, 2019 Source: Agent Provided | ListingRemoved | $19,000 |
Nov 18, 2018 Source: Agent Provided | Listed For Rent | $19,000 |
Sep 7, 2010 Source: N/A | Sold | $3,300,000 |
Nov 22, 2007 Source: Agent Provided | ListingRemoved | $5,500,000 |
Nov 14, 2007 Source: Agent Provided | Listed For Sale | $5,500,000 |
Jun 25, 2003 Source: N/A | Sold | $2,150,000 |
May 8, 2002 Source: N/A | Sold | $1,850,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $103,258 | $10,649,445 |
Home facts updated by county records
Market trends in Key Biscayne
Last updated July 2026
Avg. sale price
$1.56M
$26.67KMoM
Sale-to-List Price
94.6%
Price per sq ft
$981
$37MoM
Available listings
144
15MoM
Around this home
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.
LGBTQ Local Legal Protections
LGBTQ Local Legal Protections
Frequently asked questions about 850 Harbor Dr
- What is 850 Harbor Dr estimated to be worth?Trulia's estimated value for 850 Harbor Dr in Key Biscayne, FL is $15,539,900.
- What is the price history for 850 Harbor Dr?850 Harbor Dr in Key Biscayne, FL last sold for $3,300,000 in September 2010.
- 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 850 Harbor Dr have a pool?Yes, 850 Harbor Dr in Key Biscayne, FL has a pool.
- Does 850 Harbor Dr have laundry facilities?Yes, 850 Harbor Dr in Key Biscayne, FL has in-unit laundry.

