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21 Onyx Court, Saint Augustine, FL 32086

Single family property built in 2020 with 2,259 sq ft of living area on a 0.15-acre lot in Saint Augustine, St. Johns 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
$363,690
County assessed value (tax roll)
$159,093
Living area
2,259 sq ft
Lot size
0.15 acres (6,534 sq ft)
Year built
2020
Land use
Single family
FEMA flood zone
Not on file yet
County
St. Johns County, FL
Parcel ID
fl-65-1361412710

At a glance

Who owns 21 Onyx Ct?
St. Johns County property records list MAUNEY EVELYN G as the owner of record.
What is the county just value of 21 Onyx Ct?
$363,690 on the St. Johns 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-65-1361412710 (St. Johns 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 Onyx Ct

All 36 properties on Onyx Ct · ZIP 32086 (Saint Augustine). Values are county just values (tax roll), not market values.

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Source: Florida Department of Revenue parcel roll; data refreshed Jun 30, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources