dwello

518 WILLIAM Street, Key West, FL 33040

Single family property built in 1933 with 1,485 sq ft of living area on a 0.05-acre lot in Key West, Monroe County. Facts below come from the county property appraiser's public record.

Open in interactive map List this home free on dwello Own this home? Claim it
County just value (tax roll) — not a market value
$1,206,777
County assessed value (tax roll)
$1,206,777
Living area
1,485 sq ft
Lot size
0.05 acres (2,157 sq ft)
Year built
1933
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-0668 25 00008570000000

At a glance

Who owns 518 WILLIAM St?
Monroe County property records list KEYS KATIE HOLDINGS LLC as the owner of record.
What is the county just value of 518 WILLIAM St?
$1,206,777 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 00008570000000 (Monroe County).

Current owner

Owner contact info

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

See plans

More on William St

All 133 properties on William St · ZIP 33040 (Key West). Values are county just values (tax roll), not market values.

Nearby properties

Explore the area

Search this address on listing sites

These links open the listing site directly; we don't copy their data.

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