Miami-Dade Value property tax analysis

640 S Mashta Dr, Key Biscayne, FL 33149

4,234 sqft, built 1968, in 100 Appraised at $9,910,420 for 2025.

Miami-Dade County account 2452050080320

Appraised value
$9,910,420
Tax year 2025
Market value
$9,910,420
Living area
4,234 sqft
$2,341 per sqft
Year built
1968
5

Why this page matters for a protest

A strong tax protest page needs the county value, property facts, and enough context to compare this home with similar properties nearby. This page gives homeowners a starting point before reviewing comparable homes and prior-year changes.