check your own contents insurance - I only found out by accident that our policy covers student contents and the cover we have for stuff outside the home also is available to student belongings eg lost mobile phone
I would dodoubke check that purplehrn if the term is "student accommodation" then this would ordinarily cover a rented house if it is full of students. Ring your insurer and ask the specific question. Your call will be recorded in case of future query. My insurer said a house is covered as long as all doors and windows are locked i.e. No cover if there is unforced entry which is fair enough.