Bath chief executive Bob Calleja wants to know as soon as possible if the club can develop the Recreation Ground.
Bath want the Rec to offer the same facilities as London Irish or Wasps
The club want to raise the capacity of the ground from the current 10,300 to at least 15,000 in order to keep pace with other clubs in the Premiership.
A strategic review of the future of the venue is starting with the results set to be announced in December.
"We would like an amber light to be able to proceed by February," Calleja told the Western Mail.
"If we are legally allowed to develop this ground all we want is to know.
"We have ambitions to develop the ground - if we are allowed to. We are under pressure in that by 2010 we must have a 15,000 capacity.
We cannot afford to let this opportunity pass us by - it is very serious
Bath chief executive Bob Calleja
"While time ticks away, other clubs are moving on. Other clubs are developing their grounds all the time and we are standing still."
Bath are determined to stay at the venue but insist they will move if development permission is not granted.
"We would clearly put our focus on staying at and developing the Rec, but if that was impossible and we were forced to move, then the other options would become serious considerations," added Calleja.
"We have, over the years, looked at other sites but all have been ruled out for various reasons.
"But don't mention Swindon or Bristol or Timbuktu, because we have no intention of Bath Rugby playing anywhere but Bath."
The review is being carried out by an independent consultant on behalf of the Charity Commission, the organisation responsible for the venue.
And Calleja wants as many people as possible to get involved with the public consultation.
"I don't think the decision-makers have actually had evidence of the majority's strength of feeling," he said.
"Now is the time to make your feelings heard. We cannot afford to let this opportunity pass us by - it is very serious."