EHU is holding a new campus opening ceremony on Thursday.
The Lithuanian government last October decided to transfer the former monastery premises to EHU, which is now spread out across several locations in the Lithuanian capital.
EHU spokesman Maksim Milto told BNS that the university expected to fully move to the new premises in October.
EHU in late 2017 received a negative assessment from the Lithuanian Center for Quality Assessment in Higher Education, which said that this provided grounds for "revoking the authorization to deliver studies and carry out activities related to studies".
The university's performance was evaluated last year because it received a negative assessment after an earlier review in 2014 and was only issued only a three-year accreditation.
The Lithuanian government has allowed EHU to continue operating until July 2019.
EHU is a private university that was established in Minsk in 1992 and operated in Belarus' capital until its closure by the authorities in 2004. It reopened in Vilnius in 2005 at the Lithuanian government's invitation.
EHU currently enrolls almost 800 students, 95 percent of whom are from Belarus.