Possible Clues:

• Apt anagram of 'dirty room'?
• Communal bedroom
• Many 7s in this kind of town
• Short living space on one island for a number of people on the bunk perhaps
• Sleeping quarters
• Sort of town for the retired?
• Awfully dirty room where Tom Brown slept
• College building
• Large sleeping room
• Hall of residence staff redirected Mick, half-cut on right wing