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3775 21st Avenue SW, Naples, FL 34117

Single family property built in 1981 with 3,577 sq ft of living area on a 1.14-acre lot in Naples, Collier 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
$377,217
County assessed value (tax roll)
$172,863
Living area
3,577 sq ft
Lot size
1.14 acres (49,658 sq ft)
Year built
1981
Land use
Single family
FEMA flood zone
Not on file yet
County
Collier County, FL
Parcel ID
fl-21-38050640000

At a glance

Who owns 3775 21st Ave SW?
Collier County property records list RITTBERG, ROY S as the owner of record.
What is the county just value of 3775 21st Ave SW?
$377,217 on the Collier 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-21-38050640000 (Collier 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 21st Ave SW

All 62 properties on 21st Ave SW · ZIP 34117 (Naples). Values are county just values (tax roll), not market values.

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Source: Florida Department of Revenue parcel roll; data refreshed Jun 24, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources