School District 43 officials expect to make about $4 million by selling the field at Porter Elementary school, but parent Kelly Stewart was one of a dozens of residents who protested the move on Thursday night.
"We're saying full stop, 'This is not surplus land.' Let's not even talk about selling it," said Stewart.
Coquitlam School Board chair Melissa Hyndes said she was disappointed a meeting on Thursday night was hijacked by a handful of parents opposed to the proposal.
The proposed sale is allowed under new provincial rules announced in February that allow school districts to sell surplus property to raise money. Similar plans are being considered in Vancouver and North Vancouver.