 The Hudson County Courthouse or Justice William J. Brennan Jr . Courthouse is located in Jersey City , Hudson County , New Jersey , United States . The six @-@ story structure was originally built between 1906 and 1910 at a cost of $ 3 @,@ 328 @,@ 016 @.@ 56 . It is considered to be an outstanding example of the Beaux @-@ Arts architectural style in the United States . 
