300 120TH St GULF, Marathon, FL 33050

Single family property built in 1980 with 972 sq ft of living area on a 0.09-acre lot in Marathon, 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

$609,030

County assessed value (tax roll)

$609,030

Living area

972 sq ft

Lot size

0.09 acres (4,125 sq ft)

Year built

1980

Land use

Single family

FEMA flood zone

Not on file yet

County

Monroe County, FL

Parcel ID

fl-54-0566 33 00357440000000

At a glance

Who owns 300 120TH St GULF?: Monroe County property records list AHEARN JUSTIN as the owner of record.
What is the county just value of 300 120TH St GULF?: $609,030 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-54-0566 33 00357440000000 (Monroe County).

Current owner

AHEARN JUSTIN

Owner contact info

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

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Nearby properties

212-B 120TH St, Marathon $391K · built 1981
310 120TH St GULF, Marathon $546K · built 1976
212-A 120th Gulf, Marathon $400K · built 1981
211 120TH St GULF B, Marathon $325K · built 1973
301 120TH St GULF, Marathon $372K · built 1974
210 120TH St GULF, Marathon $542K · built 1980
318 120TH St GULF, Marathon $636K · built 1986
211 120TH St GULF A, Marathon $348K · built 1973

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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