412 WILLIAM Street, Key West, FL 33040

Single family property built in 1928 with 801 sq ft of living area on a 0.06-acre lot in Key West, Monroe County. Facts below come from the county property appraiser's public record.

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County just value (tax roll) — not a market value

$1,573,656

County assessed value (tax roll)

$1,573,656

Living area

801 sq ft

Lot size

0.06 acres (2,760 sq ft)

Year built

1928

Land use

Single family

FEMA flood zone

Not on file yet

County

Monroe County, FL

Parcel ID

fl-54-0668 25 00006070000000

At a glance

Who owns 412 WILLIAM St?: Monroe County property records list CSS OF THE KEYS INC as the owner of record.
What is the county just value of 412 WILLIAM St?: $1,573,656 on the Monroe County tax roll (as of January 1). Just value is the property appraiser's figure for property taxes — not a market value.
What is the parcel ID?: fl-54-0668 25 00006070000000 (Monroe County).

Current owner

CSS OF THE KEYS INC

Owner contact info

Phones, emails and mailing addresses from public Florida records are available to members.

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Nearby properties

414 WILLIAM St, Key West $2.1M · built 1938
408 WILLIAM St, Key West $1.8M · built 1933
726 EATON St, Key West $1.1M · built 1958
418 WILLIAM St, Key West $2.7M · built 1928
724 EATON St, Key West $3.9M · built 1938
723 FLEMING St, Key West $4.2M · built 1933
730 EATON St, Key West $2M · built 1938
717 FLEMING St, Key West $2.1M · built 1933

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Source: Florida Department of Revenue parcel roll; data refreshed Jun 25, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources