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945 Mariner Drive, Key Biscayne, FL 33149 Property Information

945 Mariner Drive, Key Biscayne, FL 33149 Property Information

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  • Owner
  • Documents
  • Tax
  • Neighborhood
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945 Mariner Drive, Key Biscayne, FL 33149
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Address

Primary address 945 Mariner Drive, Key Biscayne
Zip code 33149
County Miami-Dade
Municipality Key Biscayne
Parcel ID 2452050110250

Sales & Tax Overview for 945 Mariner 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 05/08/2025
Sale price $12,700,000
Arm's length
Property tax $117,443

Lot & Building Information for 945 Mariner Drive, Key Biscayne

Building sqft 6,526
Building class Residential - Single Family: 1 Unit (0101)
Acreage 0.342
Year built 1983
Stories 2
Units 1
Bedrooms 4
Bathrooms 6
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Zoning, Use & Area Overview

Walk Score
39 /100. Car-Dependent
Transit Score
0 /100. Minimal Transit
Bike Score
48 /100. Somewhat Bikeable

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 945 Mariner Drive, Key Biscayne

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  • • Improvements for 945 Mariner 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).
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About 945 Mariner Drive, Key Biscayne

What is the year built & the total sq. ft. for 945 Mariner Drive, Key Biscayne, FL 33149?

945 Mariner Drive, Key Biscayne, FL 33149 was built in 1983 and has a total of 6,526 square feet.

What is the assessed value of 945 Mariner Drive, Key Biscayne, FL 33149 and the property tax paid?

Assessed at $7,303,047, the tax amount paid for 945 Mariner Drive, Key Biscayne, FL 33149 is $117,442.

When was 945 Mariner Drive, Key Biscayne, FL 33149 last sold and what was the last sale price?

945 Mariner Drive, Key Biscayne, FL 33149 was last sold in 05/08/2025 for $12,700,000.

Ownership Information

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Real Estate Reports:
NYC Office Market Ahead of National Curve: Manhattan Q1 Vacancy Drops to 13.1% 
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.
How to Find Land Boundaries: Free & Paid Methods
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.
Locked-In Owners, Mobile Renters: Homeowners Stay Put as Renters Move 3.7x More Across Largest U.S. Cities 
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 945 Mariner Drive, Key Biscayne

Create a free account to view the complete sales history for 945 Mariner Drive, Key Biscayne, including title documents, transfer conditions, mortgages and liens.

Purchase date Purchase price Buyer name Seller name
05/08/2025 $12,700,000
03/04/2021 $5,750,000
08/23/2019 $10
       
       
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*Here are the three most recent sales for this property.


More about Miami-Dade County Property Records

Title Documents for 945 Mariner 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
05/08/2025 - D
05/13/2025 - R		 Mortgage 05/01/2055
05/08/2025 - D
05/13/2025 - R		 Deed
07/28/2023 - D
07/28/2023 - R		 Notice of Commencement
03/16/2022 - D
03/23/2022 - R		 Mortgage 04/01/2052
03/04/2021 - D
03/08/2021 - R		 Mortgage 04/01/2051
03/04/2021 - D
03/08/2021 - R		 Deed
08/23/2019 - D
08/23/2019 - R		 Deed
01/19/1993 - R Notice of Commencement
08/04/1992 - R Warranty Deed
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R: Recorded date
D: Document date

Property Taxes for 945 Mariner Drive, Key Biscayne

Access detailed property tax data for 945 Mariner 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 $117,443
Market value $7,931,195
Assessed value $7,303,047

More about Miami-Dade County Property Taxes

Assessment History for 945 Mariner Drive, Key Biscayne

Here's the assessment & property tax history for 945 Mariner 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 $7,931,195 $7,303,047 15.5108 $117,443 +13.23%
2024 $6,639,134 $6,639,134 15.6226 $103,721 +7.41%
2023 $6,083,436 $6,083,436 15.8731 $96,563 +8.18%
2022 $5,617,017 $5,617,017 15.8911 $89,261 +94.28%
2021 $4,436,359 $1,571,907 16.4556 $45,944 -33.93%
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Risk

Create a free account to unlock extended information for 945 Mariner 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 945 Mariner Drive, Key Biscayne to see estimated average daily traffic on streets surrounding the property as well as the types of properties in its vicinity.

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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 0.41
Key Biscayne K-8 Center 8 Public PK, K-8 921 0.41
St Christophers Montessori NR Private PK-5 103 0.99
St Christophers Montessori NR Private PK-5 103 0.99
Key Biscayne Presbyterian School NR Private PK-1 160 1.02
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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 0.41
St Agnes Academy NR Private PK-8 498 1.06
Mast Academy 10 Public 6-12 1,535 3.75
Amikids Miami-Dade South NR Public 6-12 14 3.78
Ransom Everglades School NR Private 6-8 0 5.20
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Nearest high schools

Name Rating Type Grade range No of students Distance to school (mi)
Mast Academy 10 Public 6-12 1,535 3.75
Amikids Miami-Dade South NR Public 6-12 14 3.78
Immaculata-La Salle High School NR Private 9-12 869 4.96
Immaculata-La Salle High School NR Private 9-12 0 4.97
Ransom Everglades School NR Private 6-12 1,084 5.45
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Data provided by GreatSchools.org © 2025. All rights reserved.

Neighbors for 945 Mariner Drive, Key Biscayne

Here are the neighbors for 945 Mariner Drive, Key Biscayne.

Address Square feet Purchase date Purchase price
201 Knollwood Dr, Key Biscayne 5,341 08/15/2022 $8,300,000
1095 Mariner Dr, Key Biscayne 7,791 04/09/2024 $18,000,000
241 Knollwood Dr, Key Biscayne 4,515 06/30/2020 $10
1025 Mariner Dr, Key Biscayne 9,400 04/23/2010 $6,750,000
1090 Mariner Dr, Key Biscayne 5,324 04/05/2000 $2,300,000
131 Knollwood Dr, Key Biscayne 10,042 10/04/2001 $1,980,000
1047 Mariner Dr, Key Biscayne 4,389 01/28/2022 $7,950,000
1060 Mariner Dr, Key Biscayne 4,445 06/05/2002 $2,020,000
211 Knollwood Dr, Key Biscayne 4,513 03/10/1998 $1,100,000
999 Mariner Dr, Key Biscayne 5,278 11/12/1999 $1,350,000
1005 Mariner Dr, Key Biscayne 5,498 05/28/2015 $10
101 Knollwood Dr, Key Biscayne 5,673 05/03/2023 $10
121 Knollwood Dr, Key Biscayne 5,246 12/20/2019 $10
221 Knollwood Dr, Key Biscayne 4,771 05/22/1979
1045 Mariner Dr, Key Biscayne 4,495 04/21/2022 $8,200,000
925 Mariner Dr, Key Biscayne 7,740 01/16/2019 $1
251 Knollwood Dr, Key Biscayne 9,618 12/04/2023 $10,050,000
1051 Mariner Dr, Key Biscayne 3,902 03/01/2022 $7,420,000
231 Knollwood Dr, Key Biscayne 5,096 02/06/2026 $10
1080 Mariner Dr, Key Biscayne 8,699 04/25/2012 $4,100,000
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Nearby ZIP Codes for 945 Mariner Drive, Key Biscayne

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