Math department space design ideas

I'm looking for resources on design space for academic departments, particularly, We've been asked to provide ideas on designing a "dream math department". I'd like to gather some ideas for doing this. What ideal characteristics should the space/architecture/furniture in a good math department have?

I'd like innovative ideas for:

Classrooms, offices, student lounges, lighting, furniture, bookshelves, artwork. Any suggestions should be mindful of improvement of creative output and innovative instruction and ideally be accompanied by rationale.

I'm sure (although having resources allocated for this is rare) I'm not the only faculty member faced with this. Any links to, or thoughts about, math department design ideas would be helpful.

As strange as this question is, it may indirectly help departments flourish and may indirectly benefit mathematics in the long run.

(As I'm writing this question all I can think of is a window I saw in a classroom in the math department at MIT once that was stuffed with newspaper...but I nevertheless ask.)

EDIT: In light of Mariano's very accurate assessment of this question as off-topic, I'd like to apologize to the moderators and the forum for the question. Also, though, I'd like to clarify my rationale for asking: this site is more or less for anything about mathematics (even...gulp...for homework problems), so I thought the question may not be too much of a stretch because good answers to it may affect the allocation of resources to mathematics departments. We aren't individually inclined to think about questions like these, although not doing so may lead to our being put in substandard space because administrators and/or other departments with more time to put value on these things actually put in their two cents. A site like this can be used to "crowdsource" such a problem without too much loss to any individual and yet with great gain to the group. Certainly this question is not mathematics, but is directly related to the health of mathematics in mathematics departments...and hence I asked the question.

What I particularly like about the university I am at right now is that there is a so called supervision area at literally every corner. They are intended for tutorials for small groups of students supervised by postgrads, but in fact many of them are vacant most of the time. So If you meet somebody in the hallway and want to discuss some math you don't have to look for a seminar room, or someones office but can just start wherever you are. Also if you get cabin fever in your office you can just go outside and work on some blackboard there. Then chances are high that somebody comes along and stops just to be dragged into a discussion. When I first got my position here I thought that it was pretty weird but I have learned that this is really favourable over fewer but bigger work areas.

Edit (Concerning the comment) Nothing special, really. In the end it's just a blackboard (not a whiteboard, since whiteboard markers are always empty), a small table and a couple of chairs. I guess kind of important is that they don't block the hallway directly so that it doesn't come to complications with people who are just passing by. Also every single one has it's own trash bin; that might not sound too important, but it definitely helps keeping them clean.

I visited Kansas State University, Manhattan, recently, and the staff common room had tables which you could write on, as well as putting coffee cups on!

To be more futuristic (and see some recent James Bond films) how about tables incorporating tablet computers?

We just moved the department into a new suite. One of the requirements we had in the design of our space was an area that could be used for social gathering and for student work. We have a large room, with one large and two small worktables and some sofas, that is surrounded by the faculty offices. We wanted a place where students could work with easy access to the faculty. So far, it seems to be working well. There is more student-faculty interaction now than before. The space is also ideal for our department meetings, and socializing before and after talks, etc. We're happy, and so are the students.