The College of St. Scholastica has purchased half of the remaining land that's part of the Bluestone Commons development near the University of Minnesota Duluth.

St. Scholastica spokesman Bob Ashenmacher said Thursday that about 3.5 acres have been secured by the college, but he declined to say what the college might build or who the developer might be.

"We bought the land because it's a good investment," he said, and it affords the college several options.

Development owner Mark Lambert, president of Summit Management based in Stillwater, Minn., said 3.5 acres now remain on the site that sits along Woodland Avenue. He has plans for a third retail and housing complex for that portion of land, built northeast of Bluestone Lofts on part of the land where Woodland Middle School once stood.

The entire 22-acre retail, housing and restaurant complex now has the 99-unit Bluestone Lofts and the 142-unit Bluestone Flats is being built. The site also includes about a dozen businesses, with a few more on the way.

St. Scholastica - along with UMD - was in the mix for repurposing the former school, but that never panned out and the school was demolished.

In 2012, St. Scholastica contemplated locating some graduate health science programs at the Woodland school, including physical and occupational therapy. Today, the college is expanding those programs, and in the fall of 2016 will start its new physician assistant program, with a class of 28 students. A site for that program has yet to be announced. St. Scholastica is about one mile from the Bluestone development.