A bid for £25m of lottery funding is being drawn up by backers of plans to replace a town's landmark theatre.
The riverside venue could replace the Hexagon theatre
Reading Borough Council wants to replace the Hexagon with a new venue at the Hill's Meadow car park.
Councillors hope to develop an arts venue coupled with an ecological learning centre at the riverside site.
They say the planned venue could put the Berkshire town on "the international map for arts provision and green credentials".
The council is to apply for 75% of the venue's funding from the "Living Landmarks" lottery fund, which requires community involvement in drawing up the plans.
Councillors are calling for residents to join new focus groups being set up to look at the plans.
Catherine Wilton, lead councillor for culture, said: "We need to replace the Hexagon with a modern venue suitable for all kinds of shows but we don't just want the same again.
"This project is the most exciting I've been involved in since becoming a councillor.
"Other towns and cities across the country will be bidding for this money so it is vitally important that the people of Reading support this project."
Plans for the new theatre have already been touted as part of the hoped-for redevelopment of the Caversham Lock area.