I'm not going to let my dad have veto over a home purchase
Does your dad want to veto your house purchase?
My dad doesn't have veto rights, at least I didn't tell him so.
I'm sorry your dad is intruding on your home purchase decision. It might be a good idea to consider sharing less information with him, at least until you've made your house purchase, so he doesn't think he can veto your choice.
I didn't tell him, but I think I just will so he can tell me no like everyone else does.
Becoming independent from your parents is a part of growing up. It's your right to not take his opinion into account regarding a home purchase. Parents can have good opinions, but ultimately it should be up to the child to decide what they want.