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1804 SEIDENBERG Avenue, Key West, FL 33040

Multi-family (fewer than 10 units) property built in 1958 with 1,702 sq ft of living area on a 0.11-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
$693,010
County assessed value (tax roll)
$318,440
Living area
1,702 sq ft
Lot size
0.11 acres (4,883 sq ft)
Year built
1958
Land use
Multi-family (fewer than 10 units)
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-0568 25 00047120000000

At a glance

Who owns 1804 SEIDENBERG Ave?
Monroe County property records list BARROSO MADELEINE as the owner of record.
What is the county just value of 1804 SEIDENBERG Ave?
$693,010 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-54-0568 25 00047120000000 (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 Seidenberg Ave

All 143 properties on Seidenberg Ave · ZIP 33040 (Key West). 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