561 S Mashta Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 561 S Mashta Dr, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details5 bd · 4 ba · 3,749 sqft · built 1980
Lot Size0.23 acres (10,000 sqft)
Owner2 Individual Names on File
Tax Bill$16,690 (2025)
Deeds & MortgagesMay 2020 Mortgage
Flood ZoneZone AE (high risk)
APN24-5205-009-0360

Property Details

APN / Parcel Number

Primary APN24-5205-009-0360

Interior

Bedrooms5 Beds
Full Baths4 Baths
Stories2 Stories
Building Area3,749 sqft Living Area
Gross Area4,962 sqft

Exterior

Year BuiltBuilt 1980
Effective Year BuiltEffective 1980
Exterior MaterialConcrete Block
Construction TypeConcrete Block
Lot Area10,000 sqft (0.23 acres)
Lot Dimensions100 ft deep x 100 ft wide
Patio Area140 sqft

Location & Zoning

Street Address561 S MASHTA DR
CityKEY BISCAYNE
StateFL
Zip33149-1732
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning Code2001
Legal Description5-6 55 42 PB 65-65 MASHTA ISLAND A REPLAT OF TRS A & B & C LOT 16 BLK 4 LOT SIZE 100.00 X 100.00 OR 15428-1425 0392 1
Legal Range42E
Legal Township55S
Legal Section05
Legal SubdivisionMASHTA ISLAND
Legal TractA,B
Legal Block4
Legal Lot Number16
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group1
Census Block1022
Census Tract4602

Owner

561 S Mashta Dr is owned and occupied by two individuals who acquired it in August 1993.

Source: Miami-Dade County records, as of October 21, 2026

Owner of Record2 Individual Names on File
Mailing Address561 S MASHTA DR, KEY BISCAYNE, FL 33149-1732
OccupancyOwner Occupied
Owner TypeIndividual

Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 4, 1993
Deed SaleAug 4, 1993
Deed Book / Page16006 / 4547
Record UpdatedOct 29, 2026

May 2020: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionDADE FL
Property Address561 S MASHTA DR, KEY BISCAYNE, FL 33149-1732
Transaction TypeMortgage
Record UpdatedFeb 5, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0000305235
DateMay 29, 2020
Book Page31952/571
Instrument2020R0305235
Lender
NamePROFESSIONAL BANK
TypeBank
AddressMIAMI, FL 33134
Agreement
TypeConventional Mortgage
AmountAmount on Record
Term361 Months
DueJun 1, 2050
Interest
Rate TypeAdjustable Rate
Change FrequencyAnnually

Tax Assessment & Valuation

The 2025 property tax bill for 561 S Mashta Dr was $16,690 with a homeowner's exemption.

Source: Miami-Dade County assessment roll, as of October 21, 2026

Property Jurisdictions

TypeName
StateFlorida
CountyMiami-Dade County
MunicipalityKey Biscayne Village
Unified School DistrictDade County School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$16,690.00 Homeowner's exemption$1,009,610$3,614,546 Land $3,100,000 Building $514,546
2023$16,082.00 (+5.68%) Homeowner's exemption$952,580 (+3%)$3,338,201 (+31.32%) Land $2,850,000 Building $488,201
2022$15,217.00 Homeowner's exemption$924,835$2,542,025 Land $2,050,000 Building $492,025

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

FEMA maps place 561 S Mashta Dr in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.

Source: FEMA National Flood Hazard Layer, effective January 25, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone AE
high risk
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood Elevation10.0 ft
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on File
median of 201 policies
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies201 in force
Nearby Flood Claims312 (1979–2024)
Claims Outside the SFHA1 of 312
Most Recent ClaimJun 2024 · rainfall accumulation
Claims by Event
  • Hurricane Irma, Sep 2017 · 38 claims
  • Hurricane Wilma, Oct 2005 · 26 claims
  • Hurricane Andrew, Aug 1992 · 195 claims

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Wildfire risk around 561 S Mashta Dr is low, with a 0.01% annual chance of wildfire.

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 96% of the US · lower than 96% of Florida
Wildfire Likelihood0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemMDWASA - MAIN SYSTEM
serves 2,377,460 people · EPA ID FL4130871
Water SourceGroundwater
Last State InspectionDec 2023
Lead3 ppb (2023)
action level 15 ppb

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and Reporting6
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 247 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · Fixed Wireless · DSL
5,000 / 5,000
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

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