Councillor Judith Hannan wants to make sure that Wollondilly Council's stance on Wilton New Town hasn't changed.
Wilton New Town is a 20 to 30 year development project and is expected to be the size of Port Macquarie once complete.
Cr Hannan has asked for a copy of every resolution the council has made in relation to the proposed development at a recent meeting.
She said she wants to make sure the councillors were still on the same page when it came to what they envision for the new town.
"It's all to do with the council's opinion on Wilton New Town - we used to have the slogan 'Wilton, a great town or no town at all'," she said.
"I just want to see if the council's opinion has changed and I want to understand where the council's attitude has changed.
"I think whether our stance has remained the same or if it has changed we need to do it as a council and give the community a chance to re-engage."
Cr Hannan said she wanted to ensure that the development would be completed with appropriate infrastructure in place.
"We still haven't got any definite dates or funding," she said.
"In years to come I don't want the people who are living there to say, 'I wish whoever let this through made sure we had the infrastructure'."
In 2017 the Department of Planning revealed that a police station, a fire station, a bus service, a public high school, three primary schools, a health precinct, a mutli-purpose community centre, a library, a childcare centre, indoor sports facility and an aquatic centre were earmarked for the development.
Wollondilly mayor Matthew Deeth said the council had always maintained its stance on infrastructure when it came to Wilton New Town.
"We've always had a strong stance on the delivery of infrastructure at Wilton," he said.
"I think we've simply developed a more collaborative approach with state agencies because it used to be more adversarial and it wasn't getting us anywhere."
Cr Deeth said the council would work alongside other stakeholders to insure infrastructure such as roads and schools would be completed in a timely manner.
"The reality is that all of this infrastructure cannot be delivered overnight and I think it is unrealistic to expect it all to be delivered upfront - we are talking about billions of dollars," he said.
"We just need commitment from the government on what the plans will look like.
"Jobs in Wilton are also going to be very important so that we don't have a complete reliance on the public transport network.
"I believe the town centre stage of the development will be open for community consultation in August so hopefully we can attract critical jobs to the area.
"We need jobs delivered on day one."