The Dade County Courthouse, now known as the Miami-Dade County Courthouse, is a historic courthouse located at 73 West Flagler Street in Miami, Florida. Constructed over four years (1925â€“28), it was added to the U.S. National Register of Historic Places on January 4, 1989. The building is 360 feet (120 m) tall with 28 floors. When built, it was the tallest building in Miami and in Florida. It was also reputed to be the tallest building south of Baltimore. Today, the Dade County Courthouse, provides offices, chambers and courtrooms for the clerks and judiciary assigned to the Circuit and County Civil Court and the Family Court.