What happens if I rent out the house I claimed to be my primary residence?

[Anup Dhakal]

Taking out conventional loan with 5% down for my second house claiming it will be my primary residence. I have all intention to move to that house after closing, but I am just wondering what happens if I just remained in my current residence and rent out the new house.

Who is responsible to keep track of whether I am really living in the new house?

Thanks!