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Hello,

It is not up to the university to tell students where to live.

Can I say,
It is not the duty of the university to tell students where to live.
The university should not dictate to students and tell them where to live.

What would you say?

I appreciate your response.
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Your suggestions are acceptable but the original is by far the more natural sounding version.
Comments  
I would say something like, "The university should not dictate living arrangements to its students."

It all depends on exactly what idea you want to convey. Are you using this sentence as part of an opinion piece, or in a debate?

"It is not up to the university to tell students where to live" and "It is not the duty of the university to tell students where to live" have different connotations (at least in my opinion). Like the example I stated above, that particular sentence conveys strong feelings about the topic and is a bit more concise than the examples you offered.

Hope this helps!
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 MalRey's reply was promoted to an answer.
Thank you MalRey.