Dorming for CGS students

I’m still confused about the dorming and roommate selection for CGS students at Boston University. I heard you are put into random dorms but is that in January when you first arrive or is it during your sophomore year?

Hello! I am a current CGS student.
(haha yeah, they don’t give a lot of info about dorming.)

At the beginning of January, you will receive an email in your bu.edu inbox about setting up your “spring-only” housing application. Basically, you will fill out a survey that asks you to rank the different dorms and a quick lifestyle sheet. So, it’s not completely random. But, you may or may not get your first choice, depending on the availability of rooms. The good news is that many CGS kids end up with some pretty nice dorms, including singles in Myles and brownstones. And if you really don’t like your assignment, you can also apply for room-changes at the beginning of the semester.

TLDR: You will fill out a housing application for Spring 2021, summer 2021, and each subsequent academic year.