686 Harbor Ln
Key Biscayne, FL 33149
- 4 Beds
- 1 Bath
- 1,586 sqft
4 Beds
1 Bath
1,586 sqft
Home Value
Trulia Estimate
$3.18MSince last month
Increased$23K (+0.7%)Since last year
Increased$481K (+17.8%)Since last sale
Increased$2M (+238.2%)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 +73% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $3.18M |
| July 2026 | $3.16M |
| June 2026 | $3.12M |
| May 2026 | $2.99M |
| April 2026 | $2.9M |
| March 2026 | $2.84M |
| February 2026 | $2.78M |
| January 2026 | $2.73M |
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 |
|---|---|---|---|---|---|---|---|
0.33 | Single-Family Home | $2,625,000 | 11/12/25 | 3 | 1 | 1,265 | |
0.36 | Single-Family Home | $2,800,000 | 06/30/26 | 3 | 2 | 1,403 | |
0.40 | Single-Family Home | $2,600,000 | 09/19/25 | 4 | 3 | 1,570 | |
0.38 | Single-Family Home | $2,600,000 | 06/29/26 | 3 | 2 | 1,333 | |
0.22 | Single-Family Home | $1,200,000 | 06/05/26 | 4 | 4.5 | 3,241 | |
0.16 | Single-Family Home | $3,500,000 | 01/16/26 | 4 | 3.5 | 2,775 | |
0.43 | Single-Family Home | $2,400,000 | 10/15/25 | 3 | 2 | 2,159 | |
0.12 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.44 | Single-Family Home | $3,000,000 | 05/06/26 | 3 | 2 | 1,304 | |
0.24 | Single-Family Home | $3,125,000 | 03/09/26 | 5 | 3.5 | 2,429 |
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 |
|---|---|---|---|---|---|---|
0.04 | $9,168,900 | 6 | 6.5 | - | Off Market | |
0.03 | $6,950,000 | 5 | 5.5 | 5,421 | For Sale | |
0.05 | $7,716,900 | 6 | 6.5 | 5,299 | Off Market | |
0.05 | $5,757,200 | 5 | 4.5 | 4,444 | Off Market | |
0.08 | $4,444,800 | 5 | 5.5 | 3,534 | Off Market | |
0.05 | $3,367,500 | 4 | 3 | 3,004 | Off Market | |
0.09 | $5,199,000 | 6 | 4.5 | 3,356 | For Sale | |
0.09 | $9,200,000 | 5 | 5.5 | 4,416 | For Sale | |
0.10 | $4,950,000 | 6 | 6 | 3,888 | Recently Sold | |
0.12 | $4,548,900 | 4 | 4 | 2,500 | Off Market | |
0.12 | $3,475,000 | 5 | 4.5 | 2,320 | Recently Sold | |
0.17 | $3,437,500 | 3 | 2 | 1,915 | Off Market |
Local Information
-- mins to
Home Highlights
Property Type
Single-Family Home
Year Built
1952
Living Area
1,586 sqft
Price/Sqft
$2,005
About this House
This single-family home is located at 686 Harbor Ln, Key Biscayne, FL. 686 Harbor Ln is in Key Biscayne, FL and in ZIP code 33149. This property has 4 bedrooms, 1 bathroom and approximately 1,586 sqft of floor space. This property has a lot size of 8537 sqft and was built in 1952.
686 Harbor Ln, Key Biscayne, FL 33149 is a 4 bedroom, 1 bathroom, 1,586 sqft single-family home built in 1952. It last sold for $940,000 on Apr 28, 2004. It is currently off market. The Trulia Estimate is $3,179,400, with a rent estimate of $6,061/month.
Home Details for 686 Harbor Ln
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Levels, Entrance, & Accessibility Stories: 1 |
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Exterior Home Features Roof: OtherExterior: Other |
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Year Built Year Built: 1952Year Updated: 1967 |
Property Type / Style Property Type: Single Family Home |
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Units in Building: 1 |
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Lot Area: 8537 sqft |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Apr 28, 2004 Source: N/A | Sold | $940,000 |
Feb 18, 2000 Source: N/A | Sold | $460,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $32,959 | $2,313,285 |
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 686 Harbor Ln
- What is 686 Harbor Ln estimated to be worth?Trulia's estimated value for 686 Harbor Ln in Key Biscayne, FL is $3,179,400.
- What is the price history for 686 Harbor Ln?686 Harbor Ln in Key Biscayne, FL last sold for $940,000 in April 2004.
- 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.
- How big is the lot at 686 Harbor Ln?The lot at 686 Harbor Ln in Key Biscayne, FL is about 0.20 acres (8,537 sq ft).