Coming from a campus where no groups currently have houses (and the national organizations flat out told each of their groups no way in hell), this makes me
Did the brothers explicitly tell you when you rushed that the group would be getting a house? As in they said, "Our national organization and alumni said we will be getting a house next year so you will get the chance to be there for it." If you were told that during rush, I can understand the feeling of having a bait and switch pulled.
HOWEVER,
If it was never explicitly guaranteed when you were rushing, you're ridiculous. A brotherhood is more than just a physical house. If a house was so important, why did you join this group in the first place?
I don't know your campus, but if someone depledged because their group didn't have a house, I wouldn't think of giving him a bid.