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

Miami-Dade County property record for 610 S Mashta Dr, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details7 bd · 6.5 ba · 6,490 sqft · built 1969
Lot Size0.344 acres (15,000 sqft)
OwnerCompany Name on File
Last Sale$14,600,000 (Aug 2021)
Tax Bill$187,286 (2025)
Deeds & MortgagesAug 2021 Sale
Feb 2021 Transfer
Flood ZoneZone AE (high risk)
APN24-5205-009-0130

Property Details

APN / Parcel Number

Primary APN24-5205-009-0130

Interior

Bedrooms7 Beds
Full Baths6.5 Baths
Half Baths1 Half Bath
Stories2 Stories
Building Area6,490 sqft Living Area
Gross Area7,736 sqft
1st Floor Area3,237 sqft

Exterior

Year BuiltBuilt 1969
Effective Year BuiltEffective 2019
Exterior MaterialConcrete Block
Construction TypeConcrete Block
Lot Area15,000 sqft (0.344 acres)
Lot Dimensions150 ft deep x 100 ft wide
Patio Area930 sqft
Boat AccessBoat Access

Location & Zoning

Street Address610 S MASHTA DR
CityKEY BISCAYNE
StateFL
Zip33149-1735
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning Code2001
Legal DescriptionMASHTA ISLAND A REPLAT OF TRS A B & C PB 65-65 LOT 12BLK 3 LOT SIZE100.000 X 150 OR 16854-3648 0695 4 COC 23277-4923 03 2005 1
Legal Range42E
Legal Township55S
Legal Section05
Legal SubdivisionMASHTA ISLAND
Legal TractA
Legal Block3
Legal Lot Number12
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group1
Census Block1004
Census Tract4602

Owner

610 S Mashta Dr is owned by a company that bought it in August 2021.

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

Owner of RecordCompany Name on File
Mailing Address610 S MASHTA DR, KEY BISCAYNE, FL 33149-1735
Owner TypeCompany
VestingLimited Liability Company

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

DateDocument
Aug 23, 2021Warranty Deed, Transfer
ATTORNEY ONLY, ATTORNEY
Feb 12, 2021Intrafamily Transfer, Transfer

Assessor's Deed Record

Deed NamesName on Deed
Last SaleAug 23, 2021 · Amount on File
Deed SaleAug 23, 2021 · Amount on File
Prior SaleOct 4, 2016 · Amount on File
Deed Document Number2021615447
Deed Book / Page32693 / 1987
Prior Transfer DateJun 16, 1995
Prior Transfer Doc1685003648
Record UpdatedOct 29, 2026

August 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateAug 23, 2021
Property Address610 S MASHTA DR, KEY BISCAYNE, FL 33149-1735
Document Number0000615447
Book / Page32693 / 1987
Map ReferenceMB 65 PG 65
Instrument DateAug 10, 2021
Instrument2021R0615447
Transaction TypeTransfer
Record UpdatedApr 2, 2024
Title CompanyATTORNEY ONLY, ATTORNEY

Transaction

AmountAmount on Record
Tax$87,600.00
Amount AccuracyRounded by County
Additional
  • Notice of Foreclosure Sale
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address430 GRAND BAY DR, KEY BISCAYNE, FL 33149-1918

Transferred To (Grantee/Buyer)

NameVerified Name
Address6610 SUNSET DR, MIAMI, FL 33143

February 2021: Intrafamily Transfer, Transfer

Document TypeIntrafamily Transfer
JurisdictionDADE FL
Recording DateFeb 12, 2021
Property Address610 S MASHTA DR, KEY BISCAYNE, FL 33149-1735
Document Number0000113269
Book / Page32349 / 860
Map ReferenceMB 65 PG 65
Instrument DateJul 30, 2020
Instrument2021R0113269
Transaction TypeTransfer
Record UpdatedApr 2, 2024

Transaction

Tax$0.00
Amount AccuracyNo Consideration Stated
Additional
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address610 S MASHTA DR, KEY BISCAYNE, FL 33149-1735

Tax Assessment & Valuation

The 2025 property tax bill for 610 S Mashta Dr was $187,286, up 5.6% from the year before.

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$187,286.00 (+5.65%)$11,944,163 Land $9,300,000 Building $2,644,163$11,944,163 Land $9,300,000 Building $2,644,163
2024$177,274.00 (+5.39%)
2023$168,202.00 (+6.56%)$10,475,100 (+6.23%) Land $7,770,000 Building $2,705,100$10,475,100 (+6.23%) Land $7,770,000 Building $2,705,100
2022$157,846.00$9,860,567 Land $7,125,000 Building $2,735,567$9,860,567 Land $7,125,000 Building $2,735,567

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

Flood

FEMA maps place 610 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

The area around 610 S Mashta Dr has no burnable land within ember reach, so its wildfire risk is not rated.

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

Wildfire RiskNot rated
no burnable land within 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

Cell Coverage

5G (outdoors only) and 4G LTE

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