Almost 500 people signed a petition against the potential sale of part of Whanganui's Cornmarket Reserve.
Mike Webber delivered the petition to Whanganui district councillors on Tuesday and said the number made "it well worth presenting".
The reserve is one of 23 properties Wanganui District Council has identified as surplus and which could be sold to pay off debt and invest.
"I think this is an admirable stance to take," Mr Webber said at the council meeting.
But he said Cornmarket Reserve was one "which seemed to cause concern immediately to people that we talked to".