Miami-Dade County  »  33149  »  S Mashta Dr  »  520 S Mashta Dr

520 South Mashta Drive, Key Biscayne, FL 33149 Property Information

520 South Mashta Drive, Key Biscayne, FL 33149 Property Information

  • General
  • Owner
  • Documents
  • Tax
  • Neighborhood
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Photo & Map Show Hide

520 South Mashta Drive, Key Biscayne, FL 33149
static Mapbox map

Address

Primary address 520 South Mashta Drive, Key Biscayne
Zip code 33149
County Miami-Dade
Municipality Key Biscayne
Parcel ID 2452050090170

Sales & Tax Overview for 520 South Mashta Drive, Key Biscayne

View detailed information on past sales, title documents and property taxes, including the assessed market value, in their dedicated tabs.

Sale date 03/04/2024
Sale price $16,500,000
Arm's length
Property tax $216,649

Lot & Building Information for 520 South Mashta Drive, Key Biscayne

Building sqft 4,177
Building class Residential - Single Family: 1 Unit (0101)
Acreage 0.508
Year built 1961
Stories 1
Units 1
Bedrooms 3
Bathrooms 4
Unlock this property report with a free account.

Access up-to-date information from property owner names to sales history, tax info, title documents, mortgages, development, maps, permits and more.
Sign Up Now

Zoning, Use & Area Overview

Walk Score
Transit Score
Bike Score


Zoning district
School district Miami-Dade County Public Schools

View more neighborhood information such as transportation, nearby schools and risk designations in the dedicated tab.

Other Property Data for 520 South Mashta Drive, Key Biscayne

Property reports include comprehensive occupancy, improvement and development information (where available).
Create a free account to access valuable data points such as:

  • • Improvements for 520 South Mashta Drive, Key Biscayne , including their type, square footage, grade and when they were built.
  • Development maps such as planimetric, zoning, land use and urban landscape maps (building age and stories).
Unlock all property data with a free account.
Sign up

About 520 South Mashta Drive, Key Biscayne

What is the year built & the total sq. ft. for 520 South Mashta Drive, Key Biscayne, FL 33149?

520 South Mashta Drive, Key Biscayne, FL 33149 was built in 1961 and has a total of 4,177 square feet.

What is the assessed value of 520 South Mashta Drive, Key Biscayne, FL 33149 and the property tax paid?

Assessed at $13,967,621, the tax amount paid for 520 South Mashta Drive, Key Biscayne, FL 33149 is $216,648.

When was 520 South Mashta Drive, Key Biscayne, FL 33149 last sold and what was the last sale price?

520 South Mashta Drive, Key Biscayne, FL 33149 was last sold in 03/04/2024 for $16,500,000.

Ownership Information

View detailed property contacts like owners, building management, representatives from permits and tenants with a free account.

Real Estate Reports:
Eliza Theiss, Jun 04, 2026 World Cup or Your Mortgage/Rent? Ticket Prices Rival Host City Housing Costs
World Cup ticket prices rival monthly housing expenses in the 11 U.S. host cities, with even the cheapest seats covering weeks or even months of rent or mortgage payments.
Lucian Alixandrescu, May 27, 2026 NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
New York City’s office market outpaced the U.S. on several major metrics in Q1, with Manhattan vacancy nearly 5 percentage points below the national benchmark, asking rents climbing against a downward national trend and flex inventory crossing 15 million square feet.
Laura Pop-Badiu, May 21, 2026 How to Find Land Boundaries: Free & Paid Methods
If you need to find land boundaries fast, you can start with a free county parcel/GIS viewer or a premium platform like PropertyShark to see an approximate parcel outline and lot data. However, keep in mind that a web-based land boundaries map is a starting point, not the legal finish line.
Research 100M+ property records powered by:
  • 2000+ governmental and public data sources
  • 80 dedicated analysts and researchers
  • 20+ years of real estate experience
Learn More

Past Sales & Property History for 520 South Mashta Drive, Key Biscayne

Create a free account to view the complete sales history for 520 South Mashta Drive, Key Biscayne, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
03/04/2024 $16,500,000
04/23/2014 $8,700,000
02/17/1993 $1,800,000
       
       
Access the complete sales history for 520 South Mashta Drive, Key Biscayne with a free account.
Sign up

*Here are the three most recent sales for this property.


Title Documents for 520 South Mashta Drive, Key Biscayne

To view the complete history of deeds, mortgages, assignments of leases and rents, and more, sign up for free. Available data goes back to 1966.

Date Type Amount Party 1 Party 2 Maturity Document Related documents Doc image
06/10/2025 - D
06/10/2025 - R
Agreement
03/05/2024 - R
03/04/2024 - D
Deed
04/24/2023 - R
04/19/2023 - D
Mortgage 05/01/2053
04/23/2014 - D
04/23/2014 - R
Deed
02/17/1993 - R Warranty Deed
Unlock title documents, including buyer and seller information (when available).
Sign up

R: Recorded date
D: Document date

Property Taxes for 520 South Mashta Drive, Key Biscayne

Access detailed property tax data for 520 South Mashta Drive, Key Biscayne, FL 33149. Tax information included: property tax, market value and assessed value, exemptions, abatements, and assessment history.

Tax year: 2025
Property tax $216,649
Market value $13,967,621
Assessed value $13,967,621

Assessment History for 520 South Mashta Drive, Key Biscayne

Here's the assessment & property tax history for 520 South Mashta Drive, Key Biscayne, including the evolution of the total tax rate and corresponding property tax.

Year Market value Assessment value Total tax rate Property tax Year over year change
2025 $13,967,621 $13,967,621 15.5108 $216,649 +12.74%
2024 $12,774,815 $11,953,597 15.6226 $192,168 +8.23%
2023 $11,623,601 $10,866,907 15.8731 $177,561 +9.46%
2022 $10,671,647 $9,879,007 15.8911 $162,211 +5.85%
2021 $9,313,016 $9,313,016 16.4556 $153,251 +3.34%

Risk

Create a free account to unlock extended information for 520 South Mashta Drive, Key Biscayne, including whether it's located in FEMA flood zones, floodways or special flood hazard areas, as well as the Coastal barriers resources system area (COBRA).

FEMA flood zone(s) AE (See more on map)

Transportation

Access the detailed traffic volume map for 520 South Mashta Drive, Key Biscayne to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

View daily traffic map

Schools

Nearest elementary schools

Name Rating Type Grade range No of students Distance to school (mi)
Key Biscayne K-8 Center 8 Public PK, K-8 921 0.63
Key Biscayne K-8 Center 8 Public PK, K-8 921 0.63
Key Biscayne Presbyterian School NR Private PK-1 160 1.18
Key Biscayne Presbyterian School NR Private PK-1 160 1.18
St Christophers Montessori NR Private PK-5 103 1.21

Nearest middle schools

Name Rating Type Grade range No of students Distance to school (mi)
Key Biscayne K-8 Center 8 Public PK, K-8 921 0.63
St Agnes Academy NR Private PK-8 498 1.26
Mast Academy 10 Public 6-12 1,535 3.88
Amikids Miami-Dade South NR Public 6-12 14 3.95
Ransom Everglades School NR Private 6-8 0 5.02

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Mast Academy 10 Public 6-12 1,535 3.88
Amikids Miami-Dade South NR Public 6-12 14 3.95
Immaculata-La Salle High School NR Private 9-12 869 4.84
Immaculata-La Salle High School NR Private 9-12 0 4.85
Ransom Everglades School NR Private 6-12 1,084 5.17

Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 520 South Mashta Drive, Key Biscayne

Here are the neighbors for 520 South Mashta Drive, Key Biscayne.

Address Square feet Purchase date Purchase price
510 S Mashta Dr, Key Biscayne 5,992 07/09/2025 $18,921,250
620 N Mashta Dr, Key Biscayne 6,356 11/02/2011 $3,700,000
600 N Mashta Dr, Key Biscayne 2,792 06/21/2024 $4,250,000
560 N Mashta Dr, Key Biscayne 3,570 03/23/2018 $10
530 N Mashta Dr, Key Biscayne 9,401 08/05/2014 $3,000,000
571 N Mashta Dr, Key Biscayne 12/20/2019 $5,250,000
600 S Mashta Dr, Key Biscayne 6,749 05/02/2002 $4,001,300
570 N Mashta Dr, Key Biscayne 3,840 08/22/1995 $550,000
610 S Mashta Dr, Key Biscayne 7,736 08/16/2021 $14,600,000
620 S Mashta Dr, Key Biscayne 7,230 06/16/2022 $2,133,500
540 N Mashta Dr, Key Biscayne 3,674 09/21/2005 $2,050,000
530 S Mashta Dr, Key Biscayne 11,109 11/25/2014 $10
511 N Mashta Dr, Key Biscayne 5,534 04/13/2022 $11,800,000
610 N Mashta Dr, Key Biscayne 3,843 08/04/1983
548 S Mashta Dr, Key Biscayne 11,940 05/20/2010 $5,300,000
551 N Mashta Dr, Key Biscayne 14,693 12/16/2003 $3,200,000
561 N Mashta Dr, Key Biscayne 6,288
500 S Mashta Dr, Key Biscayne 14,969 04/27/2021 $17,400,000
501 N Mashta Dr, Key Biscayne 8,883 03/08/2023 $10
550 N Mashta Dr, Key Biscayne 4,882 12/15/1995 $715,000

Nearby ZIP Codes for 520 South Mashta Drive, Key Biscayne

Not sure if we cover all the data-points you need? View sample full report View sample full report