531 21st Avenue S, Naples, FL 34102

Single family property built in 1999 with 5,354 sq ft of living area on a 0.34-acre lot in Naples, Collier County. Facts below come from the county property appraiser's public record.

Open in interactive map List this home free on dwello Own this home? Claim it

County just value (tax roll) — not a market value

$7,592,939

County assessed value (tax roll)

$3,505,606

Living area

5,354 sq ft

Lot size

0.34 acres (15,000 sq ft)

Year built

1999

Land use

Single family

FEMA flood zone

Not on file yet

County

Collier County, FL

Parcel ID

fl-21-01881520009

At a glance

Who owns 531 21st Ave S?: Collier County property records list NEWITT, RONALD J & JEAN as the owner of record.
What is the county just value of 531 21st Ave S?: $7,592,939 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-21-01881520009 (Collier County).

Current owner

NEWITT, RONALD J & JEAN

Owner contact info

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

See plans

Explore the area

Search this address on listing sites

These links open the listing site directly; we don't copy their data.

Source: Florida Department of Revenue parcel roll; data refreshed Jun 23, 2026. Values are county tax-roll figures, not appraisals. How to read these values · Data sources

531 21st Avenue S, Naples, FL 34102

At a glance

Current owner

More on 21st Ave S

Explore the area

Search this address on listing sites