The removal sparked criticism from supporters who said they had spent years requesting a press box for the school and ultimately funded and built one themselves during spring break of the previous school year.
"The only people you are hurting are the kids!" one parent shouted as crews dismantled the structure.
Community members said efforts to secure a press box date back more than a decade.
"We've been asking since 2010 to have a press box. Honestly, at the end of the day, we've been waiting. Year after year, year after year," Carolyn Babcock said.
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Others described disappointment over seeing the structure removed.
"When it came down, to see that, it broke my heart," Virginia Rodriguez said.
"Tearing down the nicest thing that anyone has ever done for College Park!" Erin O'Leary yelled.
Supporters of the project said the district had previously identified a press box as a need for the campus.
"In 2022, they budgeted, they actually budgeted $100,000 for the booth, and they had it in their master plans that a booth was to be built for College Park, but unfortunately nothing was ever built," Jocko Rodriguez said.
Mt. Diablo Unified School District Superintendent Adam Clark told ABC7 that he was not aware of plans to construct the press box until August 4.
"As soon as I found out about an unauthorized build on one of our sites, it's not acceptable. It's something that's not safe for students. It hasn't gone through DSA approval, so I knew immediately this was going to have to come down," Clark said.
Clark said the district is currently involved in $8 million worth of upgrades to the school's softball facilities and locker rooms.
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During a district board meeting Wednesday, parents voiced their opposition to the removal.
"I want to relay the disappointment from the star athletes on the team who are practicing right now, they couldn't make it to the district board meeting," said Paul Leung, the parent of a football player.
Babcock said a press box would enhance the experience for students.
"We want these kids to come here and feel pride in what they do and where they are and just having little things like a press box and the announcing, all these little things. It just adds to the experience of high school," she said.
Clark defended the district's decision, citing safety and approval requirements.
"You just can't go on to a site, trespass and build something that's going to be accessed by students, staff, and community members. That's what it comes down to," Clark said.
The superintendent said he would not oppose bringing an announcer press box to College Park High School in the future, provided the proper procedures are followed.