Hutt Valley High School students protest mouldy buildings by setting up classrooms on Parliament's lawn

One-hundred Hutt Valley High School students set up their classrooms on Parliament's lawn on Thursday to protest a lack of safe school buildings due to extensive mould.

Sixteen classrooms at their school are out of use because of the toxic mould. About 500 students, mostly from year 12 and 13, are learning from home part-time until pre-fabs can be moved on-site.

Now, the students are protesting against a lack of Government funding to keep their classrooms safe.

Head Boy Patrick Maslen says the closed-off classrooms have "unsafe levels of mould and leaks". The school's C block is the worst affected and will need to be demolished.

"We've got to be home for two-and-a-half days a week for this term and, you know, everyone did it last year and everyone knows how much harder it is," Head Girl Charlotte Leach says.

Politicians from most parties walked outside Parliament to meet with the students - although not Education Minister Chris Hipkins.

"No sign of the minister," National Party education spokesperson Paul Goldsmith said. "He only goes to good announcements."

Hipkins says he was too busy to visit, but adds the school will eventually be equipped with safe classrooms.

"Absolutely they will have those. I can't give them a specific time frame," he says. 

"Work is underway at the moment to get relocatable classrooms onto the school site and to put other temporary arrangements in place."

Labour's Hutt South MP Ginny Anderson did make it to the Parliament protest. She will host a public meeting on Thursday night to seek a commitment that safe classrooms will be provided to the school.

"I would like to see a commitment to funds and timelines in terms of when that rebuild's going to occur," she says.

A commitment her own Government has not yet been able to give - which is leaving hundreds of students seeking alternative classrooms to learn in.