O'Neill said that the facilities could cost €1 million, "if you do it properly”.
In a small number of cases, modules will be taught fully online.
Foley said that the system was 'the fairest possible solution given the extraordinary circumstances in which we find ourselves'.
NUIG students this week found out how long they would be spending on campus next year.
Aoibhinn Ní Shúilleabháin is one of Ireland's top academics and a broadcaster for RTÉ.
Dr Claire Gillan and Dr Allesandro Lunghi secured funding of €3 million from the European Research Council this week.
The students were told that Academic Registry would be in touch with them regarding module registration 'in due course'.
Student requests to move online will be decided on a case-by-case basis.
UCD students are set to receive their timetables on September 7th.
Harris made the comments at a webinar run by the Dublin Chamber this afternoon.