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

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

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  • Owner
  • Documents
  • Tax
  • Neighborhood
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531 South Mashta Drive, Key Biscayne, FL 33149
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Address

Primary address 531 South Mashta Drive, Key Biscayne
Zip code 33149
County Miami-Dade
Municipality Key Biscayne
Parcel ID 2452050090330

Sales & Tax Overview for 531 South Mashta Drive, Key Biscayne

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Sale date 09/29/2022
Sale price $7,000,000
Arm's length
Current property tax $92,203

Lot & Building Information for 531 South Mashta Drive, Key Biscayne

Building sqft 5,792
Building class Residential - Single Family: 1 Unit (0101)
Acreage 0.23
Year built 2012
Stories 2
Units 1
Bedrooms 4
Bathrooms 4
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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 531 South Mashta Drive, Key Biscayne

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  • • Improvements for 531 South Mashta Drive, Key Biscayne , including their type, square footage, grade and when they were built.
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About 531 South Mashta Drive, Key Biscayne

What is the year built & the total sq. ft. for 531 South Mashta Drive, Key Biscayne, FL 33149?

531 South Mashta Drive, Key Biscayne, FL 33149 was built in 2012 and has a total of 5,792 square feet.

What is the assessed value of 531 South Mashta Drive, Key Biscayne, FL 33149 and the property tax paid?

Assessed at $5,984,153, the tax amount paid for 531 South Mashta Drive, Key Biscayne, FL 33149 is $93,137.

When was 531 South Mashta Drive, Key Biscayne, FL 33149 last sold and what was the last sale price?

531 South Mashta Drive, Key Biscayne, FL 33149 was last sold in 09/29/2022 for $7,000,000.

Ownership Information

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Real Estate Reports:
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.
Laura Pop-Badiu, May 07, 2026 Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
Renters became the primary drivers of long-distance mobility across the largest U.S. cities, moving 3.7 times more than owners in 2024, as high mortgage rates and housing costs kept many homeowners in place.
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Past Sales & Property History for 531 South Mashta Drive, Key Biscayne

Create a free account to view the complete sales history for 531 South Mashta Drive, Key Biscayne, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
09/29/2022 $7,000,000
02/05/2018 $4,000,000
10/04/2010 $1,700,000
       
       
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*Here are the three most recent sales for this property.


Title Documents for 531 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
09/29/2022 - D
10/03/2022 - R
Deed
02/05/2018 - D
02/05/2018 - R
Deed
10/04/2010 - D
10/04/2010 - R
Deed
06/07/1999 - D
05/28/1999 - R
Notice of Commencement
10/15/1993 - R Warranty Deed
10/15/1993 - R Warranty Deed
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R: Recorded date
D: Document date

Property Taxes for 531 South Mashta Drive, Key Biscayne

Access detailed property tax data for 531 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
Base tax $93,138
Current property tax $92,203
Market value $6,032,186
Assessed value $5,984,153

Assessment History for 531 South Mashta Drive, Key Biscayne

Here's the assessment & property tax history for 531 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 $6,032,186 $5,984,153 15.5108 $93,138 +2.51%
2024 $5,815,504 $5,815,504 15.6226 $90,853 -3.87%
2023 $5,954,144 $5,954,144 15.8731 $94,511 +78.72%
2022 $3,378,257 $3,292,135 15.8911 $52,883 +7.38%
2021 $2,992,850 $2,992,850 16.4556 $49,249 -0.82%

Risk

Create a free account to unlock extended information for 531 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 531 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 0.59
Key Biscayne K-8 Center 8 Public PK, K-8 921 0.59
Key Biscayne Presbyterian School NR Private PK-1 160 1.14
Key Biscayne Presbyterian School NR Private PK-1 160 1.14
St Christophers Montessori NR Private PK-5 103 1.18

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 0.59
St Agnes Academy NR Private PK-8 498 1.22
Mast Academy 10 Public 6-12 1,535 3.84
Amikids Miami-Dade South NR Public 6-12 14 3.92
Ransom Everglades School NR Private 6-8 0 5.00

Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Mast Academy 10 Public 6-12 1,535 3.84
Amikids Miami-Dade South NR Public 6-12 14 3.92
Immaculata-La Salle High School NR Private 9-12 869 4.82
Immaculata-La Salle High School NR Private 9-12 0 4.83
Ransom Everglades School NR Private 6-12 1,084 5.17

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

Neighbors for 531 South Mashta Drive, Key Biscayne

Here are the neighbors for 531 South Mashta Drive, Key Biscayne.

Address Square feet Purchase date Purchase price
601 S Mashta Dr, Key Biscayne 12/01/2022 $4,225,000
621 S Mashta Dr, Key Biscayne 5,343 03/18/1991
101 Island Dr, Key Biscayne 4,820 06/05/2024 $4,000,000
530 N Mashta Dr, Key Biscayne 9,401 08/05/2014 $3,000,000
560 N Mashta Dr, Key Biscayne 3,570 03/23/2018 $10
600 N Mashta Dr, Key Biscayne 2,792 06/21/2024 $4,250,000
611 S Mashta Dr, Key Biscayne 6,096 02/20/2014 $3,350,000
520 N Mashta Dr, Key Biscayne 3,499 07/01/2003 $1,060,000
561 S Mashta Dr, Key Biscayne 4,962 03/16/1992 $650,000
571 S Mashta Dr, Key Biscayne 3,722 04/28/2021 $2,945,000
570 N Mashta Dr, Key Biscayne 3,840 08/22/1995 $550,000
500 N Mashta Dr, Key Biscayne 6,282 07/25/2000 $750,000
540 N Mashta Dr, Key Biscayne 3,674 09/21/2005 $2,050,000
521 S Mashta Dr, Key Biscayne 7,618 07/16/2004 $1,275,000
511 S Mashta Dr, Key Biscayne 2,961 08/23/1991
551 S Mashta Dr, Key Biscayne 4,074 07/14/2025 $4,700,000
121 Island Dr, Key Biscayne 3,849 11/06/2023 $10
541 S Mashta Dr, Key Biscayne 6,217 08/26/2020 $10
111 Island Dr, Key Biscayne 3,915 09/09/2024 $10
550 N Mashta Dr, Key Biscayne 4,882 12/15/1995 $715,000

Nearby ZIP Codes for 531 South Mashta Drive, Key Biscayne

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