635 Harbor Circle, Key Biscayne, FL 33149

Single family property built in 1979 with 4,357 sq ft of living area on a 0.58-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

$13,208,906

County assessed value (tax roll)

$2,814,156

Living area

4,357 sq ft

Lot size

0.58 acres (25,141 sq ft)

Year built

1979

Land use

Single family

FEMA flood zone

Not on file yet

County

Miami-Dade County, FL

Parcel ID

fl-23-2452050013250

At a glance

Who owns 635 Harbor Cir?: Miami-Dade County property records list RUTH HAERDI MITCHELL TRS as the owner of record.
What is the county just value of 635 Harbor Cir?: $13,208,906 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-23-2452050013250 (Miami-Dade County).

Current owner

RUTH HAERDI MITCHELL TRS

Owner contact info

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

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Nearby properties

625 Harbor Cir, Key Biscayne $2.8M · built 1978
620 Harbor Cir, Key Biscayne $14M · built 1964
630 Sunset Cir, Key Biscayne $2.5M
640 Sunset Cir, Key Biscayne $7.6M · built 1965
615 Harbor Cir, Key Biscayne $3.1M · built 1978
610 Harbor Cir, Key Biscayne $4.4M · built 2014
670 Harbor Dr, Key Biscayne $13.8M
645 Sunset Cir, Key Biscayne $6.9M · built 1970

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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