Archaeological trial trench evaluation was required on the site of demolished buildings associated with the Sheffield Central Post Office. The main part of the 1893 and 1909 Post Office Buildings still stand to the north of the site, and are grade II listed. The demolished buildings within the site area were associated with a single-storey element at the south end of the 1893 block, and a three-storey late 1950s extension. The the site is located within the area of the medieval town, and buildings present by the mid-19th century included back-to-back housing, shops and a public house. The evaluation aimed to ascertain whether there was any potential for preservation of archaeological remains below the Post Office buildings in this area. The trenches revealed remains associated with sub-basement levels of the 1950s building and the 1893 building, with walls and made ground extending down to at least 2m below the current ground surface. A floor was only encountered in one area, overlying bedrock at 1.3m below the current ground surface. It was concluded that the potential for the survival of significant archaeology within the site is negligible due to the truncation caused by the late 19th- and mid-20th-century structures.