Avenue, Aldea, and Mission Bay all at different parts of the city. The Parnassus housing office handles the Avenue (and presumably Aldea) housing. Mission Bay operates the Mission Bay housing. "Avenue" is Parnassus proper. It's what we think of when we say "Parnassus Housing," so named "Avenue" because the street addresses are 3rd or 5th Ave. This is what you want, and you almost have to be in the know to get it because there's high competition. It's also much cheaper than Mission Bay housing, because it includes ALL utilities. (Electricity in a house this size easily runs $500-800/mn. And it's all paid for!)
Avenue -
1) Avenue group house - Everything's included in the cost. Not hard-wired for internet, but I get library wireless. It's really fast.
2) 3rd and Irving - Apt style housing. Brand new building. Kinda small inside. Electricity not included.
Aldea -
For families or couples only. If you want to live with a bud, you'd better lie to housing and tell them you're doing each other.
Mission Bay -
Too far away, but they let you rent out the ENTIRE apt. You can rent out all 4 rooms to an apt, and rent them out to the community at an increased cost. Go to roommates.com and find someone. Considering the quality of the place, key card security, free wireless, etc...they easily rent out. wink, wink...