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50 Island Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 50 Island Dr, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details5 bd · 4 ba · 5,338 sqft · built 1967
Lot Size0.344 acres (15,000 sqft)
Owner2 Individual Names on File
Last Sale$11,080,000 (Feb 2025)
Tax Bill$29,247 (2025)
Deeds & MortgagesJun 2026 Line of Credit
Sep 2017 Mortgage
Flood ZoneZone AE (high risk)
APN24-5205-024-0110

Property Details

APN / Parcel Number

Primary APN24-5205-024-0110

Interior

Bedrooms5 Beds
Full Baths4 Baths
Stories2 Stories
Building Area5,338 sqft Living Area
Gross Area5,966 sqft

Exterior

Year BuiltBuilt 1967
Effective Year BuiltEffective 1990
Exterior MaterialConcrete Block
Construction TypeConcrete Block
Lot Area15,000 sqft (0.344 acres)
Lot Dimensions150 ft deep x 100 ft wide
Patio Area1,198 sqft
Boat AccessBoat Access

Location & Zoning

Street Address50 ISLAND DR
CityKEY BISCAYNE
StateFL
Zip33149-2715
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning Code2000
Legal DescriptionCAPE FLORIDA SUB SEC 3 PB 79-64 LOT 2 BLK 5 LOT SIZE100.000 X 150 OR 14579-792 0590 1
Legal Range42E
Legal Township55S
Legal Section05
Legal SubdivisionCAPE FLORIDA SUB
Legal Block5
Legal Lot Number2
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group1
Census Block1013
Census Tract4602

Owner

50 Island Dr is owned and occupied by two individuals who bought it in February 2025.

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

Owner of Record2 Individual Names on File
Mailing Address50 ISLAND DR, KEY BISCAYNE, FL 33149-2715
OccupancyOwner Occupied
Owner TypeIndividual
VestingHusband and Wife

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
Jun 23, 2026Deed of Trust, Mortgage · Line of Credit
NATIONAL BANK FLORIDA
Sep 25, 2017Deed of Trust, Mortgage
BANK OF AMERICA

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleFeb 19, 2025 · Amount on File
Deed SaleFeb 19, 2025 · Amount on File
Deed Document Number2025125440
Deed Book / Page34623 / 2372
Record UpdatedOct 29, 2026

June 2026: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionDADE FL
Recording DateJun 23, 2026
Property Address50 ISLAND DR, KEY BISCAYNE, FL 33149-2715
Document Number0000426037
Book / Page35364 / 2916
Instrument DateJun 9, 2026
Instrument2026426037
Transaction TypeMortgage
Record UpdatedJul 13, 2026
Title CompanyNONE LISTED ON DOCUMENT

Transferred To (Grantee/Buyer)

NameVerified Name
Address50 ISLAND DR, KEY BISCAYNE, FL 33149-2715

Mortgage

Document Number0000426037,
DateJun 23, 2026
Book Page35364/2916
Instrument2026426037
Lender
NameNATIONAL BANK FLORIDA
Agreement
TypeLine of Credit
AmountAmount on Record
Term360 Months
DueJul 9, 2056
Interest
Rate TypeAdjustable Rate
Rate6.36%
Initial TypeAdjustable Rate
AdjustableAdjustable Rate Rider
Max Rate-1%

September 2017: Deed of Trust, Mortgage

Document TypeDeed of Trust
JurisdictionDADE FL
Property Address50 ISLAND DR, KEY BISCAYNE, FL 33149-2715
Document Number0000551558
Instrument DateSep 25, 2017
Transaction TypeMortgage
Record UpdatedAug 25, 2018

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address50 ISLAND DR KEY BISCAYNE FL 331492715, KEY BISCAYNE, FL 33149-2715

Mortgage

Document Number0000551558
DateOct 2, 2017
Book Page030701/004860
Instrument551558
Lender
NameBANK OF AMERICA
TypeBank
Address101 S TRYON ST, CHARLOTTE, NC 28280-0002
Agreement
AmountAmount on Record
Term360 Months
DueOct 1, 2047

Tax Assessment & Valuation

The 2025 property tax bill for 50 Island Dr was $29,247.

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$29,247.00$1,793,098$7,907,541 Land $7,125,000 Building $782,541
2023$28,192.00 (+5.75%) Homeowner's exemption$1,691,810 (+3%)$6,149,373 (+7.95%) Land $5,355,000 Building $794,373
2022$26,659.00 Homeowner's exemption$1,642,534$5,696,721 Land $4,875,000 Building $821,721

Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.

Flood

FEMA maps place 50 Island 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 Elevation9.0 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 50 Island 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 209 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 · Fiber in parts of the area		2,000 / 250
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Blue Stream.

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