The Government is considering closing the primary school Prime Minister John Key attended.
Education Minister Anne Tolley said closing Aorangi Primary School in Christchurch was being considered because of a falling roll, costly building work and the fact there were other schools in the area.
Consultation with the community would be held.
"I want to ensure that the learning needs of children in this diverse community are properly looked after," Mrs Tolley said.
"But I also have to ensure the school's planned $2.625 million replacement building programme is an effective use of taxpayer money."
Mrs Tolley said a decision had not been made and she would listen to what the community and school board had to say.
"The delays and issues that have arisen during the rebuilding process are not the reason for considering closure," she said.
The Education Ministry is providing an independent facilitator to help with consultation.
The ministry would also continue to provide additional capital funding for any urgent health and safety issues identified by the board.