Waiariki council chairman Graeme Nahkies dug the spade into the site and then cut the ribbon to signify the opening of the Information Centre which is expected to become the hub of student and public activity.
"Providing a high-quality institute with enhanced facilities, services and systems to support the needs of students and staff is one of the key outcome areas for Waiariki and both of these initiatives contribute to that," Mr Nahkies said.
Waiariki chief executive Professor Margaret Noble said the day was exciting for the region's distinctly bicultural institute and the effect of both new facilities would enhance future student experiences and extend the services that Waiariki provides.
"Once completed the health and science building will provide a modern teaching environment which will help our students and staff excel while the Information Centre provides a central point of contact with Waiariki for both prospective and current students and for visitors to Mokoia Campus," Professor Noble said.
"Today is a very important part of the refurbishment and revitalisation of the campus.
"We are going to transform to ensure Waiariki is the first choice for students in the region."
The Information Centre was designed to give better customer service to students as well to support the institute's direction to ensure students have all the information they need to make the choice of course and qualification.
It also houses the institute's Careers and Employability Centre which provides students with help and support in developing their employment skills and in finding jobs.
This initiative provides a permanent information base after one-stop-shop trials during recruitment periods earlier this year.
Waiariki's Health and Science building is targeted to be completed in time for the 2015 academic year while the Information Centre will be open officially to deal with any enquiries from Monday.
The planned building had been designed by Darryl Church with MOAA Architects and Hawkins Construction with work due to start next week.