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421 Grinnell St, Key West, FL 33040 Property Records

Monroe County property record for 421 Grinnell St, Key West, FL 33040

Property Summary

Property TypeSingle Family Home
Details2 bd · 2 ba · 1,792 sqft · built 1933
Lot Size0.041 acres (1,793 sqft)
Owner2 Individual Names on Record
Last Sale$1,295,000 (Jul 2021)
Tax Bill$13,075 (2025)
Deeds & MortgagesJul 2021 Sale
Flood ZoneZone AE (high risk)
APN00005330-000000

Property Details

APN / Parcel Number

Primary APN00005330-000000
Alternative APNs
  • 01010100005330000000
  • 1005517

Interior

Bedrooms2 Beds
Full Baths2 Baths
Stories2 Stories
Building Area1,792 sqft Living Area
1st Floor Area1,352 sqft
AtticAttic
Attic Area880 sqft
FlooringCeramic Tile
Interior WallsWood

Exterior

Year BuiltBuilt 1933
Effective Year BuiltEffective 2016
Exterior MaterialWood
Construction TypeWood
Roof TypeGable/Hip
Roof MaterialMetal
Lot Area1,793 sqft (0.041 acres)
Lot Dimensions50 ft deep x 37 ft wide

Exterior Amenities

Pool TypeSpa / Hot Tub (No Pool)
PorchSlab
Porch Area504 sqft
Patio Area87 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air with A/C
Heating FuelElectric

Location & Zoning

Account Number1005517
Street Address421 GRINNELL ST
CityKEY WEST
StateFL
Zip33040-6911
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeHNC-2
Legal DescriptionKW PT LOT 4 SQR 32 G7-457 OR591-565 OR1048-347 OR1110-1889/90 OR1159-865/66 OR1402-2274 OR1441-1249 OR1597-136/37 OR2466-2417/19 OR2479-185/87 OR3114-0963
Legal Range25E
Legal Township68S
Legal Section06
Legal SubdivisionWILLIAM A WHITEHEADS MAP
Legal Lot Number4
JurisdictionMONROE FL
Township / Civil DivisionKEY WEST
Census Block Group3
Census Block3002
Census Tract972800

Historic Designation

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

Historic DistrictWithin the Key West Historic District
listed 1971 · 189 contributing resources · NRIS 71000245

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

Owner

Source: Monroe County records, as of May 4, 2026

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

Owner of Record2 Individual Names on Record
Mailing Address421 GRINNELL ST, KEY WEST, FL 33040-6911
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJul 22, 2021 · Amount on Record
Deed SaleJul 22, 2021 · Amount on Record
Prior SaleJun 10, 1996 · Amount on Record
Deed Document Number20212331430
Deed Book / Page3114 / 963
Prior Transfer DateMay 21, 2010
Prior Transfer Doc0024790185
Record UpdatedJun 8, 2026

July 2021: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionMONROE FL
Recording DateJul 22, 2021
Property Address421 GRINNELL ST, KEY WEST, FL 33040-6911
Document Number0031140963
Book / Page3114 / 963
Instrument DateJul 15, 2021
Instrument2331430
Transaction TypeTransfer
Record UpdatedJan 26, 2023
Title CompanyATTORNEY ONLY, ATTORNEY

Transaction

AmountAmount Recorded
Tax$9,065.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address3363 RIVIERA DR, KEY WEST, FL 33040-4631

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipJoint Tenants with Right of Survivorship
Address421 GRINNELL ST, KEY WEST, FL 33040-6911

Tax Assessment & Valuation

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

Property Jurisdictions

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

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$13,075.00 (+7.19%)$1,560,780 (+11.66%) Land $819,329 Building $741,451$1,560,780 (+11.66%) Land $819,329 Building $741,451
2024$12,198.00 (+8.37%)
2023$11,256.00 (+18.95%)$1,397,787 (+29.58%) Land $702,354 Building $695,433$1,397,787 (+29.58%) Land $702,354 Building $695,433
2022$9,463.00$1,078,667 Land $532,162 Building $546,505$1,078,667 Land $532,162 Building $546,505

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 September 24, 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 Elevation6.0 ft
Flood Insurance RequirementRequired
federally backed loans
Flood Insurance CostPremium on Record
median of 248 individual policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies259 units insured
incl. 11 condo units
Nearby Flood Claims11 (2005–2025)
Claims Outside the SFHA2 of 11
Most Recent ClaimFeb 2025 · rainfall accumulation
Claims by Event
  • Hurricane Irma, Sep 2017 · 6 claims
  • Hurricane Wilma, Oct 2005 · 3 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.

Internet Providers

Source: FCC Broadband Data Collection, based on 922 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
Verizon
Fixed Wireless		300 / 20
T-Mobile
Fixed Wireless		100 / 20

May also be available: Hotwire Communications.

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