445 Warren Ln, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 445 Warren Ln, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details4 bd · 4 ba · 4,315 sqft · built 2004
Lot Size0.175 acres (7,633 sqft)
Owner2 Company Names on File
Last Sale$4,350,000 (Apr 2023)
Tax Bill$59,193 (2025)
Deeds & MortgagesApr 2023 Sale & Mortgage
Feb 2021 Sale
+ 1 more
Flood ZoneZone AE (high risk)
APN24-4232-004-0290

Property Details

APN / Parcel Number

Primary APN24-4232-004-0290

Interior

Bedrooms4 Beds
Full Baths4 Baths
Stories2 Stories
Building Area4,315 sqft Living Area
Gross Area5,334 sqft

Exterior

Year BuiltBuilt 2004
Effective Year BuiltEffective 2004
Exterior MaterialCombination
Construction TypeConcrete Block
Lot Area7,633 sqft (0.175 acres)
Lot Dimensions100 ft deep x 76.3 ft wide
Patio Area200 sqft

Location & Zoning

Street Address445 WARREN LN
CityKEY BISCAYNE
StateFL
Zip33149-1824
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionTROPICAL ISLE HOMES SUB 1ST ADDN PB 50-72 LOT 13BLK 4 LOT SIZE 76.330 X 100 OR 18862-0193 1199 1 COC 23255-2118 03 2005 1
Legal Range42E
Legal Township54S
Legal Section32
Legal SubdivisionTROPICAL ISLE HOMES SUB 1ST ADDN
Legal Block4
Legal Lot Number13
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group3
Census Block3008
Census Tract4602

Owner

Source: Miami-Dade County records · APN 24-4232-004-0290

Assessment roll updated July 21, 2025 · Last verified August 2026

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

Owner of Record2 Company Names on File
Mailing Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Trust

Deeds, Mortgages & Sale History

DateDocument
Apr 06, 2023Warranty Deed, Transfer · Conventional Mortgage
JPMORGAN CHASE BANK NA
Feb 05, 2021Warranty Deed, Transfer
ATTORNEY ONLY, ATTORNEY
Sep 20, 2018Warranty Deed, Transfer
IBERIABANK

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleApr 06, 2023 · Amount on Record
Deed SaleApr 06, 2023 · Amount on Record
Prior SaleFeb 05, 2021 · Amount on Record
Deed Document Number2023230653
Deed Book / Page33653 / 4521
Last Transfer DateApr 07, 2025
Transfer Doc0000281402
Record UpdatedSep 20, 2026

April 2023: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateApr 06, 2023
Property Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824
Document Number0000230653
Book / Page33653 / 4521
Map ReferenceMB 50 PG 72
Instrument DateMar 28, 2023
Instrument2023R0230653
Transaction TypeTransfer
Record UpdatedApr 02, 2024
Title CompanyATTORNEY ONLY, ATTORNEY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$26,100.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address777 BRICKELL AVE # AVE500-49, AVE500-49, MIAMI, FL 33131-2809

Transferred To (Grantee/Buyer)

NameVerified Name
Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824

Mortgage

Document Number0000004523
DateApr 06, 2023
Instrument33653/4523
Lender
NameJPMORGAN CHASE BANK NA
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term360 Months
DueApr 01, 2053
Interest
Rate TypeAdjustable Rate
Rate5%
Type Change DateApr 01, 2030
Change Frequency6 Months
Min Rate At Change2.75%
Max Rate At Change10%
IndexOther
Max Rate10%

February 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateFeb 05, 2021
Property Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824
Document Number0000094815
Book / Page32336 / 2089
Map ReferenceMB 50 PG 72
Instrument DateJan 28, 2021
Instrument2021R0094815
Transaction TypeTransfer
Record UpdatedApr 02, 2024
Title CompanyATTORNEY ONLY, ATTORNEY

Transaction

AmountAmount Recorded
Tax$15,870.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824

Transferred To (Grantee/Buyer)

NameVerified Name
Address777 BRICKELL AVE # 500-49, 500, MIAMI, FL 33131-2803

September 2018: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateSep 20, 2018
Property Address445 WARREN LN, KEY BISCAYNE, FL 33149-1824
Document Number0000576755
Book / Page031150 / 001667
Instrument DateSep 04, 2018
Instrument576755
Transaction TypeTransfer
Record UpdatedOct 24, 2018
Title CompanyATTORNEY ONLY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$12,600.00
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipHusband and Wife
Address445 WARREN LN KEY BISCAYNE FL 331491824, KEY BISCAYNE, FL 33149-1824

Mortgage

Document Number576757
DateSep 20, 2018
Book Page031150/001671
Instrument576757
Lender
NameIBERIABANK
TypeBank
AddressPO BOX 12440, NEW IBERIA, LA 70562-2440
Agreement
AmountAmount Recorded
Term360 Months
DueSep 19, 2048
Interest
Rate TypeAdjustable Rate
Rate3.87%

Tax Assessment & Valuation

Source: Miami-Dade County records · Assessment roll updated July 21, 2025 · Last verified August 2026

Property Jurisdictions

TypeName
StateFlorida
CountyMiami-Dade County
MunicipalityKey Biscayne Village
Unified School DistrictDade 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$59,193.00 (+38.29%)$3,762,067 (+39.12%)$3,862,915 (+42.85%) Land $1,984,580 Building $1,878,335
2023$42,805.00 (+13.18%)$2,704,184 (+17.2%) Land $1,755,590 Building $948,594$2,704,184 (+17.2%) Land $1,755,590 Building $948,594
2022$37,821.00$2,307,386 Land $1,347,224 Building $960,162$2,307,386 Land $1,347,224 Building $960,162

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Miami-Dade County (12086C), updated January 25, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 120860046023, 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
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 489 individual policies
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies548 units insured
incl. 59 condo units
Nearby Flood Claims790 (1979–2021)
Most Recent ClaimOct 2021 · rainfall accumulation
Claims by Event
  • Hurricane Irma, Sep 2017 · 69 claims
  • Hurricane Katrina, Aug 2005 · 44 claims
  • Hurricane Andrew, Aug 1992 · 565 claims

Wildfire

Wildfire RiskNot rated
no burnable land within 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 · sampled at 533 locations within half a mile · Last verified October 2026

ProviderMax Down / Up (Mbps)
AT&T
Fiber · DSL · Fixed Wireless in parts of the area
5,000 / 5,000
Xfinity
Cable
2,000 / 250
T-Mobile USA
Fixed Wireless
100 / 20

May also be available: Verizon.

Drinking Water

Source: EPA Safe Drinking Water Information System via ECHO, 2026 Q3 · EPA community water system boundaries v3.0, March 2026 · Last verified October 2026

Water SystemMDWASA - MAIN SYSTEM
serves 2,377,460 people
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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.

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