We try our level best to find a place for students who confirm their arrival and request for booking an appartment. Most of the appartments we try to locate are close to the TU campus and have pretty reasonable rents. Students usually prefer to share the appartment, so if you have your roommates already decided, let the concerned person at TU know about the same. Otherwise we can also try to match students who are looking for roommates.
You can direct any if your request to the ISA Committe members, from the 'contact us' page of the website.