Fall '06 my freshman year class was the first one to be put back in Helser after it sat vacant for a year or so. Just had the north side open that was closest to the UDCC that year. The south half was closed still because of the water heater being antiquated. Eventually that got replaced and the whole thing was reopened in '07. Pretty sure ISU's enrollment hasnt stopped increasing since then.Helser should go eventually, but would need to finish the plan at UDA with another building around the edges and finally giving UDA some green space in the middle.
I remember being told we were the last residents of that building... in spring 2004.