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421 Harbour Dr, Marathon, FL 33050 Property Records

Monroe County property record for 421 Harbour Dr, Marathon, FL 33050 · Last verified December 2025

Property Summary

Property TypeResidential Vacant Land
Details3 bd · 3 ba · 1,637 sqft · built 1977
Lot Size0.286 acres (12,485 sqft)
Owner2 Individual Names on File
Last Sale$1,125,000 (Aug 2016)
Tax Bill$11,309 (2024)
Deeds & MortgagesSep 2017 Mortgage
Jul 2017 Line of Credit
Flood ZoneZone AE (high risk)
APN00376951-003000

Property Details

APN / Parcel Number

Primary APN00376951-003000
Alternative APNs
  • 20653400376951003000
  • 1460311

Interior

Bedrooms3 Beds
Full Baths3 Baths
Stories2 Stories
Building Area1,637 sqft
1st Floor Area1,637 sqft

Exterior

Year BuiltBuilt 1977
Exterior MaterialConcrete Block
Lot Area12,485 sqft (0.286 acres)
Garage Area825 sqft

Exterior Amenities

PorchPorch
Porch Area1,650 sqft
Deck Area192 sqft
Patio Area1,390 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC

Location & Zoning

Account Number1460311
Old Parcel Number20653400376951003000
Street Address421 HARBOUR DR
CityMARATHON
StateFL
Zip33050-3801
Property CategoryResidential
Property TypeVacant Land > Residential
Legal DescriptionLTS 28 & 28A AMENDED PLAT HARBOUR ISLAND DUCK KEY PB6-84 OR707-798/806 OR750-1035 OR755-1902Q/C OR786-1359 OR1346-1408D/C
Legal Range34E
Legal Township65S
Legal Section20
Legal SubdivisionHARBOUR ISLAND AMD
Legal Lot Number28A
JurisdictionMONROE FL
Township / Civil DivisionMIDDLE KEYS
Census Block Group2
Census Block2018
Census Tract971002

Owner

Source: Monroe County records · APN 00376951-003000

Assessment roll updated July 1, 2025 · Last verified December 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on File
Mailing Address571 SE 4TH ST, HIALEAH, FL 33010-5317
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Sep 29, 2017Deed of Trust, Mortgage · Commercial Mortgage
REGIONS BANK
Jul 17, 2017Deed of Trust, Mortgage · Line of Credit
REGIONS BK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleAug 22, 2016 · Amount on Record
Deed SaleAug 22, 2016 · Amount on Record
Prior SaleJul 27, 2004
Deed Document Number2088580
Deed Book / Page2811 / 2202
Record UpdatedJun 08, 2026

September 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMONROE FL
Property Address421 HARBOUR DR, DUCK KEY, FL 33050-3801
Transaction TypeMortgage
Record UpdatedDec 21, 2021

Transferred To (Grantee/Buyer)

NameVerified Name

Mortgage

Document Number0028722409
DateSep 29, 2017
Book Page2872/2409
Instrument2138259
Lender
NameREGIONS BANK
TypeBank
AddressBIRMINGHAM, AL 35211
Agreement
TypeCommercial Mortgage
AmountAmount Recorded
Term360 Months
DueSep 01, 2047
Interest
Rate TypeAdjustable Rate
Change FrequencyMonthly

July 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionMONROE FL
Property Address421 HARBOUR DR, DUCK KEY, FL 33050-3801
Document Number0028651378
Instrument DateJul 17, 2017
Transaction TypeMortgage
Record UpdatedAug 23, 2018
Title CompanyATTORNEY ONLY

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address580 SE 4TH ST HIALEAH FL 330105318, HIALEAH, FL 33010-5318

Mortgage

Document Number0028651378
DateJul 21, 2017
Book Page002865/001378
Instrument2132200
Lender
NameREGIONS BK
TypeBank
Address201 MILAN PKWY, BIRMINGHAM, AL 35211-6946
Agreement
TypeLine of Credit
AmountAmount Recorded
Interest
Rate TypeAdjustable Rate

Tax Assessment & Valuation

Source: Monroe County records · Assessment roll updated July 1, 2025 · Last verified December 2025

Property Jurisdictions

TypeName
StateFlorida
CountyMonroe County
Unified School DistrictMonroe County School District (PK - 12)

Tax Bill & Assessment History

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

YearTax BillAssessed ValueAssessed Market Value
2025$1,502,280 (-22.44%) Land $1,455,303 Building $46,977$1,502,280 (-22.44%) Land $1,455,303 Building $46,977
2024$11,309.00 (+6.4%)
2023$10,629.00 (+44.42%)$1,936,980 (+105.03%) Land $1,890,003 Building $46,977$1,936,980 (+105.03%) Land $1,890,003 Building $46,977
2022$7,360.00$944,730 Land $897,753 Building $46,977$944,730 Land $897,753 Building $46,977

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Monroe County (12087C), updated September 24, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 120879710022, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood ZoneZone AE
Special Flood Hazard AreaYes
Flood HazardHigh
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood Elevation9.0 ft
Flood Insurance RequirementRequired (federally backed mortgages)
Flood Insurance CostPremium on Record
median of 484 individual NFIP policies nearby
Community Rating SystemClass 3 (35% premium discount)
Nearby Flood Policies530 units insured
46 under condo master policies
Nearby Flood Claims316 (1995–2017)
Most Recent ClaimSep 2017, rainfall accumulation, Hurricane Irma
Claims By Storm
  • Hurricane Irma, Sep 2017 · 198 claims
  • Hurricane Wilma, Oct 2005 · 51 claims
  • Hurricane Georges, Sep 1998 · 55 claims

Wildfire

Wildfire RiskNot rated
no burnable land in reach
Wildfire LikelihoodNegligible
ExposureNone
beyond ember reach

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.

Internet Providers

Source: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 85 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
AT&TFiber5,000 / 5,000
XfinityCable1,200 / 35
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TDSL100 / 20

Availability varies by address; speeds are provider-advertised maximums, not measured.

Mobile Coverage

5G (outdoors only) and 4G LTE

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