Transport Minister Andrew Constance has confirmed the government is considering up to 12 stations for a new metro train line from central Sydney to Parramatta, as well as passing loops to ensure express trains are not hindered by all-stops services.

Councils such as Burwood are clamouring for stations on the Sydney Metro West line to be built within their boundaries, while large property owners are eagerly awaiting the final route design because of the expected uplift in values it will bring.

After a report by Fairfax Media this week, Mr Constance said the government was open to considering up to 12 stations and would seek input from the private sector about their design and construction and "how you build in and around stations".

"We want to see what we can tease out of industry over the next 18 months or so," he said.