621 Harbor Dr, Key Biscayne, FL 33149 Property Records

Miami-Dade County property record for 621 Harbor Dr, Key Biscayne, FL 33149

Property Summary

Property TypeSingle Family Home
Details4 bd · 5 ba · 4,122 sqft · built 2015
Lot Size0.179 acres (7,815 sqft)
Owner2 Company Names on Record
Last Sale$3,600,000 (Aug 2017)
Tax Bill$43,451 (2025)
Deeds & MortgagesSep 2026 Transfer
Aug 2017 Sale & Mortgage
Flood ZoneZone AE (high risk)
APN24-5205-001-1450

Property Details

APN / Parcel Number

Primary APN24-5205-001-1450

Interior

Bedrooms4 Beds
Full Baths5 Baths
Stories2 Stories
Building Area4,122 sqft Living Area
Gross Area4,769 sqft

Exterior

Year BuiltBuilt 2015
Effective Year BuiltEffective 2015
Exterior MaterialConcrete Block/Stucco
Construction TypeConcrete Block
Roof TypeRigid Frame Bar Joist
Roof MaterialOther
Lot Area7,815 sqft (0.179 acres)
Lot Dimensions104 ft deep x 75.1 ft wide
PorchPorch
Porch Area216 sqft
Patio Area1,040 sqft

Location & Zoning

Street Address621 HARBOR DR
CityKEY BISCAYNE
StateFL
Zip33149-1708
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning Code0100
Legal DescriptionBISCAYNE KEY ESTS PB 50-61 LOT 35BLK 9 LOT SIZE 75.140 X 104 OR 17618-3823 0497 1
Legal Range42E
Legal Township55S
Legal Section05
Legal SubdivisionBISCAYNE KEY ESTS
Legal Block9
Legal Lot Number35
JurisdictionDADE FL
Township / Civil DivisionKEY BISCAYNE
Census Block Group3
Census Block3027
Census Tract4602

Owner

Source: Miami-Dade County records, as of October 21, 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 Record
Mailing Address621 HARBOR DR, KEY BISCAYNE, FL 33149-1708
OccupancyOwner Occupied
Owner TypeCompany
VestingTrust, Family Revocable Trust

Deeds, Mortgages & Sale History

DateDocument
Sep 22, 2026Quit Claim Deed, Transfer
NONE LISTED ON DOCUMENT
Aug 25, 2017Warranty Deed, Transfer · ARM
NEWMEYER MORTGAGE SERVICES INC

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleAug 25, 2017 · Amount on Record
Deed SaleAug 25, 2017 · Amount on Record
Prior SaleJul 29, 2013 · Amount on Record
Deed Document Number2017496916
Deed Book / Page30669 / 1227
Last Transfer DateSep 8, 2026
Transfer Doc0000647678
Record UpdatedOct 29, 2026

September 2026: Quit Claim Deed, Transfer

Document TypeQuit Claim Deed
JurisdictionDADE FL
Recording DateSep 22, 2026
Property Address621 HARBOR DR, KEY BISCAYNE, FL 33149-1708
Document Number0000647678
Book / Page35500 / 1422
Instrument DateSep 8, 2026
Instrument2026647678
Transaction TypeTransfer
Record UpdatedOct 12, 2026
Title CompanyNONE LISTED ON DOCUMENT

Transaction

Tax$0.00
Amount AccuracyFull Amount Stated
Additional
  • Quitclaim
  • Intrafamily Transfer

Transferred From (Grantor/Seller)

NameVerified Name

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipFamily Revocable Trust
Address621 HARBOR DR, KEY BISCAYNE, FL 33149-1708

August 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionDADE FL
Recording DateAug 25, 2017
Property Address621 HARBOR DR, KEY BISCAYNE, FL 33149-1708
Document Number0000496916
Book / Page30669 / 1227
Map ReferenceMB 50 PG 61
Instrument DateAug 24, 2017
Instrument2017R0496916
Transaction TypeTransfer
Record UpdatedJul 29, 2022
Title CompanyATTORNEY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$21,600.00
Amount AccuracyRounded by County
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address328 CRANDON BLVD STE 212, 328, KEY BISCAYNE, FL 33149-1331

Transferred To (Grantee/Buyer)

NameVerified Name
Address621 HARBOR DR, KEY BISCAYNE, FL 33149-1708

Mortgage

Document Number0000496918
DateAug 25, 2017
Instrument2017R0496918
Lender
NameNEWMEYER MORTGAGE SERVICES INC
TypeMortgage Company
Agreement
TypeARM
AmountAmount Recorded
Term361 Months
DueSep 1, 2047
Interest
Rate TypeAdjustable Rate
Rate3.37%
Type Change DateSep 1, 2022
Change FrequencyAnnually
Min Rate At Change2.25%
Max Rate At Change5.37%
Index1-Year LIBOR
Max Rate8.37%

Tax Assessment & Valuation

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$43,451.00 (+3.64%) Homeowner's exemption$2,746,640 (+5.99%)$3,589,929 (+5.91%) Land $2,031,900 Building $1,558,029
2023$41,923.00 (+3.56%) Homeowner's exemption$2,591,489 (+3%)$3,389,688 (+13.42%) Land $1,797,450 Building $1,592,238
2022$40,481.00 Homeowner's exemption$2,516,009$2,988,691 Land $1,379,348 Building $1,609,343

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

Flood

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 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

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

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 247 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
2,000 / 250
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

Nearby Properties on Harbor Dr

Nearby Streets

Search Property Records by Address or Parcel Number