SAN LEANDRO — 21st Amendment Brewery announced Tuesday that it will open one of the Bay Area’s largest breweries at the former Kellogg’s cereal plant, along with a tasting room, restaurant and event space.

The company expects to have the facility running in about nine months, with work starting on the restaurant and event space in 2015, according to a news release.

21st Amendment plans to hire 20 workers the first year and about 100 over the next five years.

“With 21st Amendment and Cleophus Quealy Beer Company opening this year, joining the award-winning Drake’s Brewing, San Leandro is quickly becoming a top destination for fans of high-end beer,” said Jeff Kay, city business development manager, in a statement.

The 95,000-square-foot brewery will have an initial brewing capacity of 100,000 barrels a year, with the ability to expand to more than 250,000 barrels.

21st Amendment will install a 100-barrel brew house, with a production line that can fill 500 cans a minute.

The brewery, with offices in Oakland’s Rockridge neighborhood and a pub in San Francisco, brews most of its beer in Minnesota but has outgrown that facility, founder and brewmaster Shaun O’Sullivan said last year.

Kellogg’s closed its San Leandro production plant at 2010 Williams St. in 1995, laying off 325 workers.

Contact Rebecca Parr at 510-293-2473. Follow her at Twitter.com/rdparr1.