Wanganui Collegiate School's board chairman Brodie Stevens supports Heritage New Zealand's proposal to give the school complex category 1 heritage status.
But he wants to ensure any such move does not restrict future building alterations which do not affect the character of the school.
"From the college board's point of view, we've had some brief discussions on it. We've got to be practical about these things," he said.
The board was keen to have some input to the decision.
"My personal view is it's a good thing - there's a lot of history in these buildings. I think the reason they're interested is the type of architecture."