The first phase of the new Siena Heights Baseball Diamond was completed in the fall of 2011 and play began in the spring of 2012. The Saints' baseball team won its first home game at the new facility, claiming a 3-0 victory over Rochester on Feb. 20, 2012. Siena Heights enjoyed a 13-8 record in the inaugural season at SHU Diamond, including three wins during the Saints' Wolverine-Hoosier Athletic Tournament championship run.

The field has a turf infield and natural grass outfield. The mound is red clay. The exterior of the field is complete with three hitting tunnels outside of the right-field foul line.

The outfield fence is a wooden fence with a hitter’s eye in center field. The scoreboard is complete with inning-by-inning scoring along with runs, hits, errors, balls, strikes and outs. The field also offers stadium-style seating, which includes 81 chairback seats and lawn seating down the foul lines in either direction.

Phase two of the project was completed in the Fall of 2015. It includes restrooms, concessions, a president’s box and a press box.