Can I change my housing situation and when is the latest I can do it?

Heyo, when I was applying to UC last fall, I indicated everywhere that I would be living on campus. Now, I’m thinking of possibly just renting out an apartment with roommates if it ends up being cheaper. Of course, this is contingent on our campus even opening, but even then, housing is no longer being guaranteed and that’s stressful.

My financial aid package is based on me living in the dorms…when is it too late to change this and how can I?