Hi you may have already had an answer to this, but firstly, with the accomodation issue - I have never stayed in IQ nor do I know anyone that has, but everyone has looked very early for accomodation this year, and the problem with private is that it is open to anyone - not just freshers.
Come up with a few different options. If you want a studio, try glasshouse, possibly goldsmiths and victoria halls - they're all in good distance of uni - with your course you don't want to be too far away! There;s a lot of equipment you'll have to take in..
Secondly, I do Interior Architecture at trent atm, unless there is a miracle, and that may be the case as I have heard they aren't doing interviews this year, chances are you might not hear until March...
The way students are being chosen this year is VERY different compared to any year before, which could mean you will hear back a lot quicker, or it may take a lot longer to hear back.
I applied 2 years ago and they were the last uni to get back to me, and one of my first interviews so... unfortunately you'll have to wait and see.
Please feel free to ask me any questions about the course/uni if you like.
And really good luck for getting in, it really is a great course!
xxx