620 William St, Key West, FL 33040 Property Records

Monroe County property record for 620 William St, Key West, FL 33040 · Last verified April 2026

Property Highlights

Property Type	Residential > Single Family > Home
Bedrooms	2 Beds
Bathrooms	1 Baths
Year Built	Built 2010
Square Footage	334 sqft Living Area
Lot Size	2,242 sqft (0.052 acres)
Last Sale	$35,000 (1980)
Tax Bill	$6,000.00 (2024)

Property Details

APN / Parcel Number

Primary APN	`00011640-000100`
Alternative APNs	`01010100011640000100` `8556195`

Interior

Bedrooms	2 Beds
Full Baths	1 Baths
Building Area	334 sqft Living Area
1st Floor	334 sqft 1st Floor
Stories	1 Stories
Primary Flooring	Wood Flooring
Interior Structure	Wood Interior Structure

Exterior

Year Built	Built 1928
Effective Year Built	Effective 2010
Exterior Material	Other Exterior
Roof Construction	Gable/Hip Roof Construction
Roof Material	Metal Roof
Lot Area	2,242 sqft (0.052 acres)
Patio Area	30 sqft Patio
Porch	Open Porch
Porch Area	110 sqft Porch

Utilities and HVAC

Cooling System	None Cooling
Heating System	Forced Air with Air Conditioning Heating

Location & Zoning

Account Number	8556195
Street Address	620 WILLIAM ST
City	KEY WEST
State	FL
Zip	33040-6842
Property Usage	Residential Property Usage
Type	Residential > Single Family > Home
Legal Description	KW PT LOT 1 SQR 59 OR806-1244/1245 OR2038-629/630P/R OR2038-631/632Q/C
Legal Range	25E
Legal Township	68S
Legal Section	06
Legal Subdivision	KEY WEST SQUARE 59
Legal Lot Number	1
Jurisdiction	MONROE FL
Minor Civil Division	KEY WEST
Census Blockgroup	3
Census Block	3008
Census Tract	972400

Owner

Source: Monroe County records · APN 00011640-000100

Assessment roll updated December 8, 2025 · Last verified April 2026

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

Owner of Record	Company Name on File
Mailing Address	PO BOX 5324, MADISON, WI 53705-0324
Owner Type	Owner is a Company

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	Verified Name on Deed
Last Sale	Feb 01, 1980 · Amount on Record
Deed Sale	Feb 01, 1980 · Amount on Record
Deed Book / Page	806 / 1244
Last Transfer Date	Jul 06, 2004
Transfer Doc	0001465761
Record Refreshed	Jun 08, 2026

Tax Assessment & Valuation

Source: Monroe County records · Assessment roll updated December 8, 2025 · Last verified April 2026

Property Jurisdictions

Type	Name
State	Florida
County	Monroe County
Municipality	Key West City
Unified School District	Monroe 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.

Year	Tax Bill	Assessed Value	Assessed Market Value
2025		$1,109,124 (+18.74%) Land $983,565 Building $125,559	$1,109,124 (+18.74%) Land $983,565 Building $125,559
2024	$6,000.00 (+12.28%)
2023	$5,344.00 (+23.25%)	$934,070 (+37.38%) Land $820,437 Building $113,633	$934,070 (+37.38%) Land $820,437 Building $113,633
2022	$4,336.00	$679,920 Land $564,984 Building $114,936	$679,920 Land $564,984 Building $114,936

Flood & Wildfire

Source: FEMA National Flood Hazard Layer, Monroe County (12087C), updated September 24, 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026

Flood

FEMA Flood Zone	Zone X
Flood Hazard	Moderate
500-Year Floodplain	Yes
Special Flood Hazard Area	No
Nearest Special Flood Hazard Area	Zone AE, within 500 ft

Wildfire

Wildfire Risk	Not rated no burnable land in reach
Wildfire Likelihood	Negligible
Exposure	None beyond ember reach

Values are read at the parcel center point; lenders make the official flood determination.

Historic Designation

Source: NPS National Register of Historic Places · August 1, 2026 release · Last verified October 2026

Historic District	Within 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.