Some of the buildings on the campus in Belfast created by credit card giant MBNA may soon be housing schoolchildren.

Regional School Unit 71 directors are looking into purchasing three now-vacant buildings for $7 million to $8 million to serve all the district’s kindergarten through second-grade students.

From 1995 through 2005, MBNA had been the midcoast’s largest employer, and the Belfast campus that once housed 3,000 MBNA workers.

The three buildings were last used by Bank of America.