The newly rented house is the hotel upstairs. Can I ask the landlord to return without telling me?

If the landlord did not inform the hotel upstairs in advance, according to the relevant provisions of China's "Contract Law", the landlord did not fulfill the obligation of informing. You can return it.

The parties shall truthfully inform the other party of the transaction before concluding the contract. If the failure to fulfill the obligation to inform causes losses to the other party, it shall bear corresponding responsibilities according to law. So I have the right to ask the landlord to withdraw the rent or settle it through consultation.