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50 SE Marlin Ave, Key Largo, FL 33037 Property Records

Monroe County property record for 50 SE Marlin Ave, Key Largo, FL 33037

Property Summary

Property TypeDuplex
Details3 bd · 2 ba · 1,590 sqft · built 1962
Lot Size0.353 acres (15,375 sqft)
Owner2 Individual Names on File
Last Sale$257,000 (Nov 2002)
Tax Bill$6,138 (2024)
Deeds & MortgagesNov 2017 Transfer
Flood ZoneZone X (moderate risk)
APN00473150-000000

Property Details

APN / Parcel Number

Primary APN00473150-000000
Alternative APNs
  • 14613900473150000000
  • 1580279

Interior

Bedrooms3 Beds
Full Baths2 Baths
Units2 Units
Stories1 Story
Building Area1,590 sqft Living Area
1st Floor Area1,590 sqft
FlooringCeramic Tile
Interior WallsWallboard/Drywall

Exterior

Year BuiltBuilt 1962
Effective Year BuiltEffective 2003
Architectural StyleDuplex Single
Exterior MaterialConcrete Block
Construction TypeConcrete Block
Roof TypeFlat
Roof MaterialComposition Shingle
Lot Area15,375 sqft (0.353 acres)
Lot Dimensions102 ft deep x 150 ft wide

Exterior Amenities

PorchPorch
Porch Area252 sqft
Patio Area105 sqft
Total Buildings2 Buildings

Utilities, Heating & Cooling

Cooling SystemWall Unit
Heating SystemForced Air with A/C

Location & Zoning

Account Number1580279
Street Address50 SE MARLIN AVE
CityKEY LARGO
StateFL
Zip33037-4781
Property CategoryResidential
Property TypeResidential > Multi-Unit > Duplex
Local Zoning CodeISM
Legal DescriptionBK 13 LT 18 THRU 20 LARGO SOUND PARK PB3-111 KEY LARGO OR383-385-386-387 OR507-324 OR1154-1554 OR1348-86 OR1395-485/86 OR1475-903 OR1830-1143 OR2879-250/51
Legal Range39E
Legal Township61S
Legal Section14
Legal SubdivisionLARGO SOUND PARK
Legal Block13
Legal Lot Number18-20
JurisdictionMONROE FL
Township / Civil DivisionUPPER KEYS
Census Block Group4
Census Block4025
Census Tract970400

Historic Designation

Source: NPS National Register of Historic Places, as of August 1, 2026

Listed AreaWithin John Pennekamp Coral Reef State Park and Reserve
listed 1972 · 10 contributing resources · NRIS 72000340

Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.

Owner

50 SE Marlin Ave, a duplex, is owned by two individuals who bought it in November 2002.

Source: Monroe County records, as of December 8, 2025

Owner of Record2 Individual Names on File
Mailing Address17900 SW 168TH ST, MIAMI, FL 33187-1239
Owner TypeIndividual
VestingJoint Tenants with Right of Survivorship

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 SaleNov 12, 2002 · Amount on File
Deed SaleNov 12, 2002 · Amount on File
Prior SaleSep 11, 1997 · Amount on File
Deed Book / Page1830 / 1143
Prior Transfer DateFeb 22, 1995
Prior Transfer Doc1348000086
Record UpdatedOct 29, 2026

November 2017: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionMONROE FL
Recording DateNov 14, 2017
Property Address50 SE MARLIN AVE, KEY LARGO, FL 33037-4781
Document Number0028790250
Book / Page002879 / 000250
Instrument DateJul 9, 2015
Instrument2143506
Transaction TypeTransfer
Record UpdatedNov 30, 2017
Title CompanyATTORNEY ONLY

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address17900 SW 168TH ST MIAMI FL 331871239, MIAMI, FL 33187-1239

Tax Assessment & Valuation

Source: Monroe County assessment roll, as of December 8, 2025

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$748,258 Land $479,700 Building $268,558$748,258 Land $479,700 Building $268,558
2024$6,138.00 (+9.8%)
2023$5,590.00 (+13.78%)$646,860 (+19.91%) Land $401,288 Building $245,572$646,860 (+19.91%) Land $401,288 Building $245,572
2022$4,913.00$539,468 Land $290,588 Building $248,880$539,468 Land $290,588 Building $248,880

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

Flood

FEMA maps place 50 SE Marlin Ave in Zone X, an area of moderate flood risk, within 100 ft of a high-risk flood zone.

Source: FEMA National Flood Hazard Layer, effective September 24, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on File
median of 167 policies
Community Rating SystemClass 3 (35% premium discount)
Nearby Flood Policies167 in force
Nearby Flood Claims68 (1992–2023)
Claims Outside the SFHA4 of 68
Most Recent ClaimNov 2023 · rainfall accumulation
Claims by Event
  • Hurricane Irma, Sep 2017 · 39 claims
  • Hurricane Irene, Oct 1999 · 8 claims
  • Hurricane Georges, Sep 1998 · 8 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 50 SE Marlin Ave 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 99.1% of the US · lower than 98.7% 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 214 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL		5,000 / 5,000
Xfinity
Cable		2,000 / 250

May also be available: Verizon.

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