Exact details of the proposal are being withheld until May 21, when members of the Bay Area Super Bowl Bid Committee will make their case to 32 NFL team owners in a live presentation in Boston, said P.J. Johnston, a spokesman for the committee.
"It must have fireworks," Johnston said. "We want to hold back to 'wow' the owners on the day that they vote for Super Bowl 50."
Presenters will include Daniel Lurie, a San Franciscan who chairs the bid committee, Johnston said.
The bid will emphasize the "state of the art," $1.2 billion Santa Clara stadium project, and will highlight the Bay Area as a "beautiful, exciting and vibrant" region that has the infrastructure to handle the influx of about 70,000 people for the game and related events, Johnston said.
On May 21, the NFL team owners will also hear a proposal by the Miami Dolphins to host Super Bowl L in their city. The decision on who will host the game will be made that same day.
The losing bidder will be considered as a potential host for the Super Bowl the following year, in 2017.
"We'd like either one, but we'd love to be chosen for Super Bowl 50," Johnston said. "We're going to have a very strong bid."
Miami has suffered some setbacks lately in its bowl bid.
The Florida State Legislature last week declined its request for $350 million to renovate its aging stadium.
The city is also facing the uncertain outcome of a May 14 ballot measure asking its voters to support a hotel tax to back a stadium renewal project, with opinion polls showing most people are against it.
"We are mindful of the fact that Miami has hosted many Super Bowls," Johnston said. "They are formidable competition."