Warner Bros. to Submit a 20-year Plan : Burbank: The document will detail development for its 106-acre lot, offices on Warner Boulevard and 30-acre studio ranch.

Warner Bros. executives announced Monday that the entertainment giant will submit to city officials within the next few weeks a 20-year master plan for overhauling its main studio lot. They released few details of the plan, which will require an environmental impact report and a series of public hearings that could take up to a year before it can be submitted to the Burbank City Council. But officials said the document will outline the company’s long-term development goals for its 106-acre lot and office facilities on Warner Boulevard and the 30-acre studio ranch on Hollywood Way.

“Warner Bros. has been a significant part of the Burbank economy and a major community employer for more than six decades,” Dan Garcia, vice president of real estate planning, said in a statement. “The master plan reconfirms our company’s commitment to continuing that relationship well into the next century.”

The announcement of the Warner Bros. plan comes roughly one year after the City Council approved a $600-million blueprint for expansion of the Walt Disney studios and office space. The Disney master plan included construction of three office buildings, several sound stages and a new headquarters for the studio’s animation department near Buena Vista Street and the Ventura Freeway, which is nearing completion.

City officials contacted late Monday declined to comment on the Warner Bros. announcement until the studio submits its plans for review.

But Ted McConkey, president of Burbank Rancho Homeowners Inc., said he expects the plan to be even larger than Disney’s, because Warner Bros. properties are three times as big as Disney’s 44-acre lot.

“It’s an old studio, and over the years they have not done a lot to keep it upgraded,” said McConkey, whose group represents homeowners who live west of the Disney and Warner Bros. studio complexes.

McConkey said traffic along Riverside Drive, which winds through the Rancho area en route to the city’s Media District, has steadily increased since 1990, when Burbank adopted the Media District Specific Plan, a growth-control measure restricting studio-related development to the southwestern portion of the city. With the growth of Disney and Warners, he said he expects the trend may continue.

“We know we’re going to be impacted. We just don’t know how significantly,” McConkey said.