So we got the response back from the council and it appears to be a fob off. This, however has not deterred us from seeking other avenues. Our councillor contact has been very useful and informative since this email was sent back to me:
Sorry for delay. Things been a bit hectic. I met with council about the empty buildings. They have informed me there are some council buildings but they are either listed or are small park houses around the city. I have been informed there is nothing available in the city centre that's owned by the council.
We are currently going to be in contact with Unite in reference to an empty building. We also have a meeting tomorrow evening which will have NIHE, Council and other Statuary bodies there so i will be asking the question directly in reference to this petition as this will be an open discussion!