As the 1930s came, Pensacola's and the federal governments needed bigger places to operate out of more sufficiently. The then existing county courthouse was razed so that a bigger building could be built. The county took over this building so that the new building being constructed would house the post office and courthouse. When the new Post Office and Courthouse was completed in 1939, the customs building held onto the county and clerking offices. The now old Customs House and Post Office is still operation, still maintaing the county and clerk offices, with expansions made in the 1950s and 1970s.
In 2008 the first of two renovating phases began. Plans were to use the upper floors to house the Arts Council of Northwest Florida and West Florida Historic Preservation, however, the state suspended historical grant funding so renovations have paused.