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421 LAGUNA Avenue, Key Largo, FL 33037

Single family property built in 1998 with 4,392 sq ft of living area on a 0.22-acre lot in Key Largo, 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
$2,364,870
County assessed value (tax roll)
$2,364,870
Living area
4,392 sq ft
Lot size
0.22 acres (9,375 sq ft)
Year built
1998
Land use
Single family
FEMA flood zone
Not on file yet
County
Monroe County, FL
Parcel ID
fl-54-3361 39 00453475003700

At a glance

Who owns 421 LAGUNA Ave?
Monroe County property records list DIAZ REVOCABLE TRUST 07/23/202 as the owner of record.
What is the county just value of 421 LAGUNA Ave?
$2,364,870 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-54-3361 39 00453475003700 (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 Laguna Ave

All 50 properties on Laguna Ave · ZIP 33037 (Key Largo). 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