Early county courthouses in Worcester were built in 1733, 1751 and 1802. A granite courthouse with six columns, designed in the Greek Revival style by Ammi B. Young, was built between 1843 and 1845. An addition to the southwest corner of the building, designed in a Greek Revival/Victorian style by Stephen C. Earle, was made in 1878. In 1898-1899 a major expansion and remodeling of the building took place. The original courthouse portico was removed and a new facade created on Main Street which incorporated the original six columns and two new ones made to match the originals. The new facade, designed by Andrews, Jaques and Rantoul, features two pavilions (the one on the south is the original courthouse), with two columns each, flanking a central section with four columns. The Courthouse, located at 2 Main Street off Lincoln Square, is currently vacant.