Paramount Pictures Corp. is planning to shoot a new, as yet unannounced, feature film in Marin, according to local film industry spokespeople.

“They’re supposed to start prepping (to shoot the new film) on Monday,” said Mark Walter, general manager of the Mare Island studio space where Paramount is now staging its Bay Area projects.

The company has been scouting locations for about three months and is building a set in Peacock Gap in San Rafael, according to Deborah Albre, Marin film liaison for the California Film Commission.

Albre said she was not sure of the title, although she understood it was likely an action film, and likely a sequel to an earlier Paramount project.

“I don’t want to say if I’m not 100 percent sure,” Albre said. She said a location scout contacted her about three months ago and that the company had been looking earlier to shoot in Bolinas, Inverness or Point Reyes, before settling in Peacock Gap.

“They wanted something where they could have space for a 20-foot-high character,” she said.

The new project is separate from the Netflix series “13 Reasons Why,” a Paramount TV production that is also shooting its second season in Marin, Vallejo and other parts of the Bay Area for release in the fall, Walter said.

Like Albre, Walter said he was not able to release more details on the new film. Paramount, which is scheduled to make its own announcement soon on the film, requires associates and staff to sign a non-disclosure agreement and often uses code names for its films instead of actual titles, Walter said.

Erik Deutsch, a spokesman for the California Film Commission, said this year’s California Film & Television Tax Credit Program allows for additional tax credits for films shot outside of the Los Angeles area — including those in the Bay Area.

Deutsch said he didn’t know if the big-budget “Untitled Paramount Project” that is listed in 22 film projects approved for tax credits this year on the commission’s website was the one being shot in Marin. That project is listed as having a record $100 million-plus in expenditures that qualify for tax credits.

“That is not the total budget for the film,” Deutsch said. “If they have $100 million in qualified expenditures, then the actual film budget is a lot more.”

Expenses that qualify for tax credits include costs for location shoots and crew salaries, for example, but not payments to the actors, Deutsch added. The “Untitled Paramount Project” listed by the commission has qualified expenditures of $102.46 million, with $22.4 million worth of tax credits reserved.

Walter said his idea to create FilmMareIsland.com as a joint venture with the film industry’s Cinelease in existing facilities at Mare Island a year ago appears to have been a fortuitous proposition — given the auspicious tax credit program climate, combined with the proximity to iconic Bay Area filming locations. Within 48 hours of opening Film Mare Island, Paramount had committed to lease the studio for its first season of “13 Reasons Why” — a project that has become one of Netflix’s most popular shows, he said.

“The hub is here that serves all of the Bay Area,” Walter said. “My whole thing is about jobs creation and workforce rebates to local vendors.”

In 2008, filmmaker George Lucas had proposed to build a new multimillion-dollar complex on Mare Island, but the project never gained traction, Walter said.

“I’m repurposing existing buildings,” Walter said.

The tax credits offer added incentives for film projects to come to the Bay Area because “they are based on the local rebate,” Walter said. “They have to spend the money locally.”