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310 12TH St GULF, Marathon, FL 33050

Single family property built in 2007 with 1,118 sq ft of living area on a 0.16-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
$1,295,748
County assessed value (tax roll)
$486,814
Living area
1,118 sq ft
Lot size
0.16 acres (6,924 sq ft)
Year built
2007
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-0866 32 00101730000000

At a glance

Who owns 310 12TH St GULF?
Monroe County property records list MONTERO ANDRES as the owner of record.
What is the county just value of 310 12TH St GULF?
$1,295,748 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-54-0866 32 00101730000000 (Monroe County).

Current owner

Owner contact info

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

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More on 12th St Gulf

All 14 properties on 12th St Gulf · ZIP 33050 (Marathon). Values are county just values (tax roll), not market values.

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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