623 William St, Key West, FL 33040 Property Records

Monroe County property record for 623 William St, Key West, FL 33040

Property Summary

Property TypeSingle Family Home
Details3 bd · 3.5 ba · 2,397 sqft · built 1938
Lot Size0.069 acres (3,000 sqft)
OwnerCompany Name on Record
Last Sale$2,000,000 (Jul 2017)
Tax Bill$24,127 (2025)
Deeds & MortgagesJul 2017 Sale & Mortgage
Flood ZoneZone X (moderate risk)
APN00011580-000000

Property Details

APN / Parcel Number

Primary APN00011580-000000
Alternative APNs
  • 01010100011580000000
  • 1011894

Interior

Bedrooms3 Beds
Full Baths3.5 Baths
Half Baths1 Half Bath
Stories2 Stories
Building Area2,397 sqft Living Area
1st Floor Area2,397 sqft
FlooringConcrete/Cement
Interior WallsWood

Exterior

Year BuiltBuilt 1938
Effective Year BuiltEffective 2014
Exterior MaterialOther
Roof TypeCathedral/Clerestory
Roof MaterialMetal
Lot Area3,000 sqft (0.069 acres)
Lot Dimensions100 ft deep x 30 ft wide
Garage TypeCarport
Garage Area105 sqft
CarportCarport
Carport Area105 sqft

Exterior Amenities

Pool Area105 sqft
PorchSlab
Porch Area194 sqft
Patio Area776 sqft

Utilities, Heating & Cooling

Cooling SystemHVAC
Heating SystemForced Air with A/C

Location & Zoning

Account Number1011894
Street Address623 WILLIAM ST
CityKEY WEST
StateFL
Zip33040-6849
Property CategoryResidential
Property TypeResidential > Single Family > Home
Local Zoning CodeHHDR
Legal DescriptionKW PT LOT 4 SQR 58 G68-366 OR992-822 OR1061-1040 OR1759-1926/27 OR2120-1518/20 OR2160-181/83 OR2866/1978/79
Legal Range25E
Legal Township68S
Legal Section06
Legal SubdivisionISLAND OF KEY WEST
Legal Lot Number4
JurisdictionMONROE FL
Township / Civil DivisionKEY WEST
Census Block Group3
Census Block3011
Census Tract972400

Historic Designation

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

Historic DistrictWithin the Key West Historic District (Boundary Increase)
listed 1983 · 2,494 contributing resources · NRIS 83001430

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 RecordCompany Name on Record
Mailing Address69 E CHERRY DR, MEMPHIS, TN 38117-3110
Owner TypeCompany
VestingLife Tenant

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Last SaleJul 31, 2017 · Amount on Record
Deed SaleJul 31, 2017 · Amount on Record
Prior SaleOct 19, 2005 · Amount on Record
Deed Document Number20172133309
Deed Book / Page2866 / 1978
Prior Transfer DateJun 6, 2005
Prior Transfer Doc0021201518
Record UpdatedOct 29, 2026

July 2017: Warranty Deed, Transfer

Document TypeWarranty Deed
JurisdictionMONROE FL
Recording DateJul 31, 2017
Property Address623 WILLIAM ST, KEY WEST, FL 33040-6849
Document Number0028661978
Book / Page2866 / 1978
Instrument DateJul 31, 2017
Instrument2133309
Transaction TypeTransfer
Record UpdatedDec 21, 2021
Title CompanyATTORNEY

Transaction

AmountAmount Recorded
DownpaymentDownpayment on Record
Loan-to-Value (LTV)LTV on Record
Tax$14,000.00
Amount AccuracyFull Amount Stated
Additional
  • Arm's Length

Transferred From (Grantor/Seller)

NameVerified Name
Address1404 SOUTH ST, 1404, KEY WEST, FL 33040-3503

Transferred To (Grantee/Buyer)

NameVerified Name
RelationshipLiving Trust
Address69 WEAST CHERRY, MOUNT OLIVE, AL 35117

Mortgage

Document Number0002133310
DateJul 31, 2017
Instrument2133310
Lender
NameRENASANT BANK
TypeBank
Agreement
TypeCommercial Mortgage
AmountAmount Recorded
Term361 Months
DueAug 1, 2047
Interest
Rate TypeAdjustable Rate

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$24,127.00 (+5.41%)$2,864,863 (+8.59%) Land $1,199,520 Building $1,665,343$2,864,863 (+8.59%) Land $1,199,520 Building $1,665,343
2024$22,888.00 (+7.93%)
2023$21,206.00 (+10.74%)$2,638,267 (+8.89%) Land $1,028,265 Building $1,610,002$2,638,267 (+8.89%) Land $1,028,265 Building $1,610,002
2022$19,150.00$2,422,901 Land $705,600 Building $1,717,301$2,422,901 Land $705,600 Building $1,717,301

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 X
moderate risk
500-Year FloodplainYes
0.2% annual chance
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Flood Insurance CostPremium on Record
median of 285 individual policies
Community Rating SystemClass 5 (25% premium discount)
Nearby Flood Policies328 units insured
incl. 43 condo units
Nearby Flood Claims89 (1980–2025)
Claims Outside the SFHA43 of 89
Most Recent ClaimOct 2025 · rainfall accumulation
Claims by Event
  • Hurricane Irma, Sep 2017 · 23 claims
  • Hurricane Wilma, Oct 2005 · 8 claims
  • Hurricane Georges, Sep 1998 · 25 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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