The building was constructed in five sections, each of which reflects the health care practices of the times in which they were built.
Dunwoody The original section of the hospital was named after
William Hood Dunwoody. It was designed by architect
William Channing Whitney and built in 1910. As originally built, the main entrance was a two-story brick and stone portico, with the doors on the porch on the second story. The main entrance was later relocated and the stairway was later removed.
Janney Pavilion Addition Magney and Tusler returned to design the Janney Pavilion Addition in 1954. The corridor between Dunwoody and the Janney Children's Pavilion was expanded, and an addition was completed on the south side of the Dunwoody building.
Stevens Addition In 1957, the final hospital addition was completed. This was designed by Magney, Tusler and Setter, which had gained an additional partner. The section was built on the east end of the Wyman building and named for Stevens Avenue South, which borders the east side of the property. ==Later history==