True, but unfortunately the response from Stanford has been to introduce triple and quad rooms ;)

This is not entirely their fault. Stanford is subject to Santa Clara County building regulations, and those tend not to be friendly to large university developments (or any large developments for that matter).

I vaguely recall the recent Escondido Graduate Village Residences (EVGR) construction taking a while to get through the regulatory pipeline.

The true underlying issue here is just that there is not enough quality housing for the number of students Stanford admits.