It could certainly be a mistake, but the St. David's website says the earlier expansion was completed in 2005 as well. Maybe it began, or was first announced in 2003?
"In 2005, St. David’s South Austin Hospital completed a $50-million expansion project that included 34 new medical surgical beds, a comprehensive cardiovascular center, an observation unit in the intensive care unit (ICU) and a 360-space parking garage. Additionally, the lobby registration area and physical therapy facilities were relocated to increase convenience for patients."
http://stdavids.com/omni.aspx?id=3624