Cardiff City say they have not ruled out the possibility of ground-sharing with rugby side Cardiff Blues.
A new stadium could drive the Blues region forward
The Bluebirds plan to be in their proposed new £38m, 30,000-seat stadium in Leckwith by December 2008.
Ex-Cardiff rugby captain Mike Hall - a director of Cardiff City Stadium Ltd - is in talks with Blues benefactor Peter Thomas and chief executive Bob Norster.
"Peter sees a great chance to play at a state-of-the-art venue and move the Blues forward as a region," said Hall.
"They clearly have some way to go with their own land-owning tenancy agreement [at Cardiff Arms Park].
Although the Arms Park has a strong pull on the heart we have to look at the bigger picture
Blues chief executive Bob Norster
"But they are more than willing to sit down to some serious negotiations."
The Blues' ageing Arms Park home - owned by Cardiff Athletic Club - is built on land donated by the Marquis of Bute in 1803 with the stipulation that it is used for recreational or sporting purposes.
That would seem likely to rule out the possibility of the famous venue being sold commercially.
But that would not necessarily stop the Blues from moving to a new home, nor the land being incorporated into a new development.
"We've had talks, but there are no proposals at the moment," Norster told BBC Sport Wales. "We need details and things are at a very early stage.
"A new stadium would appeal to anyone. Although the Arms Park has a strong pull on the heart we have to look at the bigger picture."