Jaylen Brown says Beverly Hills screwed up — and he’s not staying quiet about it.

Beverly Hills police shut down his All-Star Weekend panel event on Saturday night, and the Celtics star isn’t holding back … going scorched earth on the city following Sunday’s All-Star Game festivities.

“Beverly Hills is so trash,” Brown posted to X. “I’m offended had a great panel about the future of culture with great guest people worked hard for this how dare yall.”

He then tagged the city’s police department … saying “300k down the drain.”

It wasn’t the first time Brown — who started for runner-up Team USA Stripes in the All-Star Game — went in on Bev Hills this weekend … after organizers suggested he applied for a permit, was denied, and moved forward anyway.

He says that version is flat-out wrong.

Brown says the event — for his performance brand, 741, and hosted at a private residence owned by Oakley founder Jim Jannard, didn’t require a permit at all.

“I didn’t have to pay for the house or anything,” he said. “They just opened it up. I had to pay for the build-out, but it was hundreds of thousands of dollars wasted for an event that was supposed to be positive.”

According to Brown, the shutdown didn’t add up — especially given the timing.

“It was 7 PM It wasn’t 10 PM, it wasn’t 11 PM, it wasn’t midnight,” he said. “(It was) 7 PM … We’re doing a panel. We’re doing stuff that’s positive. There was nobody that was inconvenienced.”

He also pointed out that other All-Star activations appeared to go off without a hitch.

The Beverly Hills Police Department has maintained the event lacked proper approval — but Brown clearly believes something else was at play.