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370 Harbor Ln, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 370 Harbor Ln, Key Biscayne, FL 33149 · Last verified February 2026

Property Summary

Property TypeSingle Family Home
Details4 bd · 3 ba · 3,339 sqft · built 1952
Lot Size0.177 acres (7,731 sqft)
OwnerIndividual Name on File
Last Sale$2,000,000 (Dec 2020)
Tax Bill$38,941 (2025)
Deeds & MortgagesDec 2020 Sale & Mortgage
Dec 2020 Transfer
Flood ZoneZone AE (high risk)
APN24-5205-001-1480

Property Details

APN / Parcel Number

Primary APN24-5205-001-1480

Interior

Bedrooms4 Beds
Full Baths3 Baths
Stories2 Stories
Building Area3,339 sqft Living Area
Gross Area3,786 sqft
FlooringVinyl/Resilient

Exterior

Year BuiltBuilt 1952
Effective Year BuiltEffective 1991
Exterior MaterialConcrete Block
Construction TypeConcrete
Lot Area7,731 sqft (0.177 acres)
Lot Dimensions100 ft deep x 77 ft wide
Patio Area520 sqft
FenceFence

Location & Zoning

Street Address370 HARBOR LN
CityKEY BISCAYNE
StateFL
Zip33149-1712
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionBISCAYNE KEY ESTS PB 50-61 LOT 2 BLK 10 LOT SIZE 7731.00 SQ FT COC 25485-3227 03 2007 1
Legal Range42
Legal Township55
Legal Section05
Legal SubdivisionBISCAYNE KEY ESTS
Legal Block10
Legal Lot Number2
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group3
Census Block3028
Census Tract4602

Owner

Source: Miami-Dade County records · APN 24-5205-001-1480

Assessment roll updated July 1, 2025 · Last verified February 2026

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

Owner of RecordIndividual Name on File
Co-ownerVerified Secondary Owner
Mailing Address370 HARBOR LN, KEY BISCAYNE, FL 33149-1712
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

DateDocument
Dec 21, 2020Warranty Deed, Transfer · Conventional Mortgage
CITY NATIONAL BANK OF FLORIDA
Dec 21, 2020Quit Claim Deed, Transfer
BECKER TITLE

Assessor's Deed Record

Deed Names2 Verified Names on Deed
Last SaleDec 21, 2020 · Amount on Record
Deed SaleDec 21, 2020 · Amount on Record
Prior SaleDec 21, 2020
Deed Document Number2020R0737212
Deed Book / Page32251 / 1132
Record UpdatedJun 08, 2026

December 2020: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateDec 21, 2020
Property Address370 HARBOR LN, KEY BISCAYNE, FL 33149-1712
Document Number0000737212
Book / Page32251 / 1132
Map ReferenceMB 50 PG 61
Instrument DateNov 30, 2020
Instrument2020R0737212
Transaction TypeTransfer
Record UpdatedFeb 01, 2022
Title CompanyATTORNEY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on File
Loan-to-Value (LTV)LTV on Record
Tax$12,000.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
AddressPO BOX 491374, KEY BISCAYNE, FL 33149-7374

Transferred To (Grantee/Buyer)

NameVerified Name
Address370 HARBOR LN, KEY BISCAYNE, FL 33149-1712

Mortgage

Document Number0000001134
DateDec 21, 2020
Instrument32251/1134
Lender
NameCITY NATIONAL BANK OF FLORIDA
TypeBank
Agreement
TypeConventional Mortgage
AmountAmount Recorded
Term361 Months
DueJan 01, 2051

December 2020: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionDADE FL
Recording DateDec 21, 2020
Property Address370 HARBOR LN, KEY BISCAYNE, FL 33149-1712
Document Number0000737211
Book / Page032251 / 001130
Instrument DateNov 30, 2020
Instrument737211
Transaction TypeTransfer
Record UpdatedJan 18, 2021
Title CompanyBECKER TITLE

Transaction

Tax$0.00
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
Address370 HARBOR LN KEY BISCAYNE FL 331491712, KEY BISCAYNE, FL 33149-1712

Tax Assessment & Valuation

Source: Miami-Dade County records · Assessment roll updated July 1, 2025 · Last verified February 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$38,941.00 (+28.96%) Homeowner's exemption$2,450,460 (+11.61%) Land $2,010,060 Building $440,400$2,450,460 (+11.61%) Land $2,010,060 Building $440,400
2023$30,197.00 (+11.75%)$2,195,617 (+23%) Land $1,778,130 Building $417,487$2,195,617 (+23%) Land $1,778,130 Building $417,487
2022$27,021.00$1,785,094 Land $1,364,522 Building $420,572$1,785,094 Land $1,364,522 Building $420,572

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
Special Flood Hazard AreaYes
Flood HazardHigh
100-Year FloodplainYes
1% annual chance
FloodwayNo
Base Flood Elevation10.0 ft
Flood Insurance RequirementRequired (federally backed mortgages)
Flood Insurance CostPremium on Record
median of 489 individual NFIP policies nearby
Community Rating SystemClass 8 (10% premium discount)
Nearby Flood Policies548 units insured
59 under condo master policies
Nearby Flood Claims790 (1979–2021)
Most Recent ClaimOct 2021, rainfall accumulation
Claims By Storm
  • 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 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 247 locations within about half a mile of this property

ProviderTechnologyDownload / Upload (Mbps)
AT&TFiber5,000 / 5,000
XfinityCable2,000 / 250
VerizonFixed Wireless300 / 20
T-Mobile USAFixed Wireless100 / 20
AT&TFixed Wireless100 / 20
AT&TDSL100 / 20

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

Mobile Coverage

5G and 4G LTE

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