431 N Mashta Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 431 N Mashta Dr, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details3 bd · 3 ba · 5,162 sqft · built 1965
Lot Size0.403 acres (17,560 sqft)
Owner2 Individual Names on Record
Last Sale$5,550,000 (Jun 2008)
Tax Bill$85,794 (2025)
Deeds & MortgagesAug 2021 Mortgage
Flood ZoneZone AE (high risk)
APN24-5205-017-0040

Property Details

APN / Parcel Number

Primary APN24-5205-017-0040

Interior

Bedrooms3 Beds
Full Baths3 Baths
Stories1 Story
Building Area5,162 sqft Living Area
Gross Area6,168 sqft
1st Floor Area5,162 sqft

Exterior

Year BuiltBuilt 1965
Effective Year BuiltEffective 2010
Exterior MaterialStucco
Construction TypeConcrete Block
Roof TypeGable/Hip
Roof MaterialTile
Lot Area17,560 sqft (0.403 acres)
Deck AreaDeck Area
Patio Area1,687 sqft
Boat AccessBoat Access

Location & Zoning

Street Address431 N MASHTA DR
CityKEY BISCAYNE
StateFL
Zip33149-1717
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning Code2001
Legal Description5 55 42 SMUGGLERS COVE PB 78-83 LOT 4 LOT SIZE 17,560 SQ FT COC 26444-0623 06 2008 1
Legal Range42E
Legal Township55S
Legal Section05
Legal SubdivisionSMUGGLERS COVE
Legal Block1
Legal Lot Number4
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group1
Census Block1004
Census Tract4602

Owner

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

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

Owner of Record2 Individual Names on Record
Mailing Address431 N MASHTA DR, KEY BISCAYNE, FL 33149-1717
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJun 23, 2008 · Amount on Record
Deed SaleJun 23, 2008 · Amount on Record
Prior SaleFeb 23, 2006 · Amount on Record
Deed Document Number2008514358
Deed Book / Page26444 / 623
Prior Transfer DateDec 31, 2004
Prior Transfer Doc0000013306
Record UpdatedOct 29, 2026

August 2021: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionDADE FL
Property Address431 N MASHTA DR, KEY BISCAYNE, FL 33149-1717
Transaction TypeMortgage
Record UpdatedApr 2, 2024

Transferred To (Grantee/Buyer)

NameVerified Name
Address431 N MASHTA DR, KEY BISCAYNE, FL 33149-1717

Mortgage

Document Number0000582232
DateAug 10, 2021
Book Page32671/169
Instrument2021R0582232
Lender
NameANGEL OAK MORTGAGE SOLUTIONS LLC
TypeMortgage Company
AddressATLANTA, GA 30328
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueSep 1, 2051

Tax Assessment & Valuation

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$85,794.00 (+3.26%) Homeowner's exemption$4,851,700 (+5.99%)$9,301,430 (+28.38%) Land $8,341,000 Building $960,430
2023$83,086.00 (+16.85%) Homeowner's exemption$4,577,637 (+3%)$7,245,392 (+8.28%) Land $6,268,920 Building $976,472
2022$71,104.00 Homeowner's exemption$4,444,308$6,691,493 Land $5,707,000 Building $984,493

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

Flood

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 Record
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

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

Wildfire RiskLow
lower than 98% of the US · lower than 97.6% 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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