620 Harbor Circle, Key Biscayne, FL 33149

Single family property built in 1964 with 5,835 sq ft of living area on a 0.60-acre lot in Key Biscayne, Miami-Dade 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

$13,973,876

County assessed value (tax roll)

$5,030,161

Living area

5,835 sq ft

Lot size

0.60 acres (26,008 sq ft)

Year built

1964

Land use

Single family

FEMA flood zone

Not on file yet

County

Miami-Dade County, FL

Parcel ID

fl-23-2452050013260

At a glance

Who owns 620 Harbor Cir?: Miami-Dade County property records list MERCEDES LACAYO DE CARDENAL TR as the owner of record.
What is the county just value of 620 Harbor Cir?: $13,973,876 on the Miami-Dade 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-23-2452050013260 (Miami-Dade County).

Current owner

MERCEDES LACAYO DE CARDENAL TR

Owner contact info

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

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Nearby properties

670 Harbor Dr, Key Biscayne $13.8M
635 Harbor Cir, Key Biscayne $13.2M · built 1979
625 Harbor Cir, Key Biscayne $2.8M · built 1978
610 Harbor Cir, Key Biscayne $4.4M · built 2014
680 Harbor Dr, Key Biscayne $13.4M · built 1975
615 Harbor Cir, Key Biscayne $3.1M · built 1978
630 Sunset Cir, Key Biscayne $2.5M
640 Sunset Cir, Key Biscayne $7.6M · built 1965

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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