$18,001,300
- 4 Beds
- 4.5 Baths
- 4,687 sqft (on 0.34 acres)
620 S Mashta Dr, Key Biscayne, FL 33149
Est. Refi. Payment $122,715/mo*
Refinance Your HomeCurrently Off Market - Sold Jan 18, 2005 for $3,800,000
Home Value
Trulia Estimate
$18MSince last month
Decreased$61K (-0.3%)Since last year
Increased$1M (+9%)Since last sale
Increased$14M (+373.7%)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 +62% in the last 10 years
| Month | Estimated value |
|---|---|
2026 | |
| August 2026 | $18M |
| August 2026 | $17.93M |
| July 2026 | $18.06M |
| June 2026 | $17.82M |
| May 2026 | $17.39M |
| April 2026 | $17.11M |
| March 2026 | $17.11M |
| February 2026 | $17.11M |
| January 2026 | $16.73M |
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 |
|---|---|---|---|---|---|---|---|
0.11 | Single-Family Home | $5,200,000 | 08/11/26 | 3 | 3.5 | 3,343 | |
0.08 | Single-Family Home | $14,000,000 | 08/03/26 | 4 | 4.5 | 4,290 | |
0.14 | Single-Family Home | $1,200,000 | 06/05/26 | 4 | 4.5 | 3,241 | |
0.47 | Single-Family Home | $3,800,000 | 08/20/26 | 5 | 4 | 2,329 | |
0.58 | Single-Family Home | $3,700,000 | 01/27/26 | 5 | 5 | 3,962 | |
0.46 | Single-Family Home | $3,500,000 | 01/16/26 | 4 | 3.5 | 2,775 | |
0.41 | Single-Family Home | $3,475,000 | 01/27/26 | 5 | 4.5 | 2,320 | |
0.41 | Single-Family Home | $4,950,000 | 04/20/26 | 6 | 6 | 3,888 | |
0.50 | Single-Family Home | $4,200,000 | 03/27/26 | 6 | 5.5 | 3,436 | |
0.69 | Single-Family Home | $4,475,000 | 04/10/26 | 4 | 3.5 | 3,666 |
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 | $6,350,000 | 4 | 3 | 2,761 | For Sale | |
0.04 | $16,800,000 | 4 | 4 | 3,620 | For Sale | |
0.07 | $5,694,400 | 6 | 5 | 3,245 | Off Market | |
0.06 | $5,381,900 | 4 | 3 | 2,416 | Off Market | |
0.11 | $19,900,000 | 5 | 4 | 3,085 | For Sale | |
0.08 | $14,000,000 | 4 | 4.5 | 4,290 | Recently Sold | |
0.08 | $13,356,100 | 7 | 8.5 | 5,043 | Off Market | |
0.13 | $18,434,000 | 5 | 6.5 | 5,226 | Off Market | |
0.11 | $18,500,000 | 4 | 4.5 | 2,255 | For Sale | |
0.19 | $8,197,300 | 6 | 6.5 | 4,225 | Off Market | |
0.25 | $3,404,700 | 3 | 2 | 1,915 | Off Market | |
0.26 | $4,432,100 | 5 | 5.5 | 3,534 | Off Market |
Local Information
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Home Highlights
Single-Family Home
Built in 2014
0.34 acre lot
4,687 sqft
$3,841/sqft
Garage
About this House
This single-family home is located at 620 S Mashta Dr, Key Biscayne, FL. 620 S Mashta Dr is in Key Biscayne, FL and in ZIP code 33149. This property has 4 bedrooms, 5 bathrooms and approximately 4,687 sqft of floor space. This property has a lot size of 0.34 acres and was built in 2014.
620 S Mashta Dr, Key Biscayne, FL 33149 is a 4 bedroom, 5 bathroom, 4,687 sqft single-family home built in 2014. It last sold for $3,800,000 on Jan 18, 2005. More recently, it was listed as a rental in September 2011 with an asking price of $14,000 per month. That rental listing was removed on October 1, 2011. This property is not currently displayed as for sale or rent on Trulia. The Trulia Estimate is $18,001,300.
Home Details for 620 S Mashta Dr
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Heating & Cooling Heating: Forced Air, GasAir ConditioningCooling System: CentralHeating Fuel: Forced Air |
Levels, Entrance, & Accessibility Stories: 2Floors: Hardwood |
Interior Details Types of Rooms: Walk In Closet, Dining Room, Family Room, Library, OfficeCeiling Fan |
Appliances & Utilities DishwasherDisposalDryerMicrowaveRefrigeratorWasher |
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Exterior Home Features Roof: OtherExterior: StuccoPatio |
Pool Pool |
Parking & Garage GarageParking Spaces: 2Parking: Garage Attached |
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Year Built Year Built: 2014Year Updated: 2014 |
Property Type / Style Property Type: Single Family Home |
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Units in Building: 1 |
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Lot Area: 0.34 acres |
Price and Tax history
| Date | Event | Price |
|---|---|---|
Oct 22, 2020 Source: Agent Provided | ListingRemoved | $10,950,000 |
Sep 20, 2020 Source: Agent Provided | Listed For Sale | $10,950,000 |
May 29, 2020 Source: Agent Provided | ListingRemoved | $10,950,000 |
Dec 19, 2019 Source: Agent Provided | Listed For Sale | $10,950,000 |
Oct 7, 2019 Source: Agent Provided | ListingRemoved | $11,950,000 |
Sep 6, 2018 Source: Agent Provided | PriceChange | $11,950,000 Price decreased by 4% |
Jan 16, 2018 Source: Agent Provided | Listed For Sale | $12,500,000 |
Aug 10, 2017 Source: Agent Provided | ListingRemoved | $13,100,000 |
Nov 29, 2016 Source: Agent Provided | Listed For Sale | $13,100,000 |
Sep 12, 2016 Source: Agent Provided | ListingRemoved | $13,100,000 |
Mar 15, 2016 Source: Agent Provided | PriceChange | $13,100,000 Price decreased by 23% |
Feb 19, 2016 Source: Agent Provided | Listed For Sale | $17,000,000 |
Nov 4, 2015 Source: Agent Provided | ListingRemoved | $17,000,000 |
Sep 9, 2015 Source: Agent Provided | Listed For Sale | $17,000,000 |
Oct 1, 2011 Source: Agent Provided | ListingRemoved | $14,000 |
Sep 23, 2011 Source: Agent Provided | Listed For Rent | $14,000 |
May 3, 2011 Source: Agent Provided | ListingRemoved | $6,800,000 |
Nov 4, 2010 Source: Agent Provided | Listed For Sale | $6,800,000 |
Jan 18, 2005 Source: N/A | Sold | $3,800,000 |
| Year | Property tax | Tax assessment |
|---|---|---|
| 2025 | $100,279 | $11,044,676 |
Home facts updated by county records
Market trends in Key Biscayne
Last updated August 2026
Avg. sale price
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Sale-to-List Price
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Price per sq ft
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Available listings
142
2MoM
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 620 S Mashta Dr
- What is 620 S Mashta Dr estimated to be worth?Trulia's estimated value for 620 S Mashta Dr in Key Biscayne, FL is $18,001,300.
- What is the price history for 620 S Mashta Dr?620 S Mashta Dr in Key Biscayne, FL last sold for $3,800,000 in January 2005.
- 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 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.
- Does 620 S Mashta Dr have air conditioning?Yes, 620 S Mashta Dr in Key Biscayne, FL has air conditioning.
- Does 620 S Mashta Dr have a pool?Yes, 620 S Mashta Dr in Key Biscayne, FL has a pool.

