Angry Royston residents have made a formal complaint to the Ombudsman over plans to build on the former Royston High School site.
Resident Sam Morgan, 59, sent the objection this week after approval was given to proposals including a new supermarket, petrol station and more than 140 new homes.
He originally wrote to the watchdog in April but was told he had first to complain to Barnsley Council before the Ombudsman could be notified.
Sam, of Doles Crescent, Royston, said the vast majority of people' do not want the development.
He said he believed the council-owned plot is worth £7 million and previously said villagers thought the plans had been approved to make money.
A supermarket will have a negative impact on businesses, he says, and believes Midland Road is too narrow to deal with an increase in traffic.
Plans were given the go-ahead by the council in February, but Sam believes a letter of objection from Asda in Royston was not properly considered.
He said it was submitted just before proposals were accepted.
In February up to 300 letters of objection were collected by Royston councillors and presented to Barnsley Council.
Coun Tim Cheetham said local councillors had been unhappy on behalf of residents on 'all manner of things' regarding the plans.
He said councillors would continue to support residents in opposing the application.
