531 S Mashta Drive, Key Biscayne, FL 33149
Single family property built in 2012 with 4,681 sq ft of living area on a 0.23-acre lot in Key Biscayne, Miami-Dade County. Facts below come from the county property appraiser's public record.
County just value (tax roll) — not a market value
$6,032,186
County assessed value (tax roll)
$5,984,153
Living area
4,681 sq ft
Lot size
0.23 acres (10,000 sq ft)
Year built
2012
Land use
Single family
FEMA flood zone
Not on file yet
County
Miami-Dade County, FL
Parcel ID
fl-23-2452050090330
At a glance
- Who owns 531 S Mashta Dr?
- Miami-Dade County property records list JOSEPH M SINOPOLI JR as the owner of record.
- What is the county just value of 531 S Mashta Dr?
- $6,032,186 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-23-2452050090330 (Miami-Dade County).
Current owner
- JOSEPH M SINOPOLI JR
Owner contact info
Phones, emails and mailing addresses from public Florida records are available to members.
See plansMore on S Mashta Dr
- 461 S Mashta Dr $8.7M · built 1985
- 480 S Mashta Dr $10.9M · built 1969
- 481 S Mashta Dr $9.1M · built 1989
- 490 S Mashta Dr $11.6M · built 1991
- 500 S Mashta Dr $18.3M · built 2014
- 510 S Mashta Dr $12.5M · built 1981
- 511 S Mashta Dr $3.6M · built 1960
- 520 S Mashta Dr $14M · built 1961
- 521 S Mashta Dr $4.9M · built 2012
- 530 S Mashta Dr $15.3M · built 2014
- 541 S Mashta Dr $4.6M · built 2008
- 548 S Mashta Dr $12.3M · built 2014
- 551 S Mashta Dr $3.8M · built 1961
- 561 S Mashta Dr $3.6M · built 1980
- 571 S Mashta Dr $3.6M · built 1964
- 600 S Mashta Dr $13.6M · built 1992
- 601 S Mashta Dr $3.1M
- 610 S Mashta Dr $11.9M · built 1969
- 611 S Mashta Dr $4.5M · built 2004
- 620 S Mashta Dr $11M · built 2014
All 46 properties on S Mashta Dr · ZIP 33149 (Key Biscayne). Values are county just values (tax roll), not market values.
Nearby properties
- 541 S Mashta Dr, Key Biscayne $4.6M · built 2008
- 521 S Mashta Dr, Key Biscayne $4.9M · built 2012
- 530 N Mashta Dr, Key Biscayne $4.2M · built 1988
- 540 N Mashta Dr, Key Biscayne $3.5M · built 1962
- 520 N Mashta Dr, Key Biscayne $3.5M · built 1963
- 530 S Mashta Dr, Key Biscayne $15.3M · built 2014
- 551 S Mashta Dr, Key Biscayne $3.8M · built 1961
- 550 N Mashta Dr, Key Biscayne $3.7M · built 1980
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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