There is only one dorm house for both male and female though there are curfews and times when you can't go to the opposite genders side. People will be able to choose their roommates as long as he/she the same gender.

Dorm house

(Boys on the left side. Girls are on the right.)

Lobby:

dorm room

Bathroom (each dorm room has one.)

A magic barrier will be put between the left and the right side where boys won't be able to go to the girls side and girls won't be able to go to the boys side. The magic barrier will be up from 11 pm to 5 am.