As least the Oakland A’s have some nice new digs in which to operate while they go back to the drawing board with their stadium search.

After providing a media tour of the A’s day-old offices in Jack London Square on Tuesday, team President Dave Kaval addressed stadium issues for the first time since their plans went haywire, saying that all three sites initially considered — Howard Terminal, the Coliseum and the recently squelched Laney College site — are back on the table.

“We’re 100 percent focused on Oakland and the best location that marries the community as well the A’s needs, and we’ve identified three final locations,” Kaval said. “We had a preferred location, a lot of thought went into that, and we just want to make sure before we make another announcement that we’re very thoughtful about how we approach it.”

The A’s gave themselves a year to pick a site and named a spot near Laney College in September. But last month, the Peralta Community College District Board shot down those plans by abruptly ending talks.

“We spent a lot of time getting it to three final sites, and those are the sites that are viable,” Kaval said. “I would say it would be unlikely there would be another site. ... We want to find a location and make it our home for the next 50 to 100 years.”

On Monday, the A’s got keys to their new 40,000-square-foot offices at 55 Harrison St. Amenities include a batting cage, a mural by street-art crew the Illuminaries, a gym and a break room, along with plenty of A’s memorabilia, including unusual items such as the orange ball Charlie Finley proposed using.

Event space will allow for corporate and community get-togethers that include great views of Alameda and San Francisco. And, Kaval said, the plush accommodations — completed at a cost of $4 million-$5 million — will help the team compete with Silicon Valley firms for the best employees.

“It shows the type of environment we want to have with a new ballpark, celebrating our past, having a very collaborative work environment,” Kaval said. “It’s almost like a sampler.”

The club’s 180 employees had been split between the Coliseum and Oracle Arena.

With more employees and a better work space, the A’s will be able to do more things in-house, including producing the team’s TV commercials; longtime ad agency Hub Strategy no longer will produce the team’s TV commercials.

Mulder out: Former A’s pitcher Mark Mulder told The Chronicle he no longer will be on the team’s telecasts. Mulder worked as a color analyst for CSN California, doing 20 games in 2016 and 35 in 2017, and the A’s had spoken to him about increasing his workload.

Mulder said he had “no clue” what happened. “They told me a little over a month ago that they were going in a different direction,” he texted. “The only thing I can really think of is that they are looking for someone who will maybe want the job full time. Not just part of the season like me.”

Briefly: Tickets to the A’s free 50th anniversary game April 17 are available beginning at 8 a.m. Wednesday. Kaval said that those with ticket stubs for the A’s first game in Oakland on April 17, 1968, will get the exact same seat. ... Regular-season single-game tickets will go on sale next Wednesday. ... FanFest will be Jan. 27 at Jack London Square.

Susan Slusser is a San Francisco Chronicle staff writer. Email: sslusser@sfchronicle.com Twitter: @susanslusser