Of all the places I have worked over the years, my preferred office layout so far is conference rooms. That is, each team has their own room. Open within, closed to noise from other teams. Depending on how well you get along with your teammates, you can turn on some music, decorate however you like, etc. Of course it won't work for everyone, or for every type of job, but as a developer it is the arrangement that I enjoyed the most. And anecdotally, my coworkers also seemed to prefer it to either open space or cubicles.