Plans for the new Birmingham library include a public balcony
Campaigners have said they would fight to save Birmingham's Central Library from demolition.
It comes after the city council unveiled plans on Thursday for a new £193m library in Centenary Square.
Friends of Birmingham Central Library said it hoped the current library, in Chamberlain Square, would become a Grade II-listed building.
But the council said it had plans to develop the entire Paradise Circus site, including the Central Library.
Alan Clawley, from Friends of Birmingham Central Library, said the building does not "deserve to be demolished for re-development".
He said: "The existing library is a good building and it's got plenty of light in it."
English Heritage will have the final say on whether or not the 35-year-old building will become listed.