The Petersburg Custom House & Post Office is located on the southeast corner of Tabb and Union streets on a plot of ground purchased April 18, 1856, for the sum of $15,000.

Young, first Supervising Architect of the United States Treasury, in the Italian Renaissance style.

The layout of the interior rooms plan has changed several times, nowadays revealing little evidence of the original arrangement.

[3] The building was primarily used as a post office and custom house, although the initial floor plan was changed several times.

[3] The Post Office moved to a new location in 1936 and the building was renovated as part of a Works Progress Administration project, becoming the Petersburg's City Hall in 1938.