The restaurant on the first floor should be connected with a sewer from the owner's basement. The alteration of the sewer will have a certain impact on the structure and use of the owner's house.

The specific amount of compensation should be negotiated according to the actual situation, including but not limited to the renovation plan of the sewer pipe, the degree of influence on the structure and use of the owner's house, and the owner's opinions. Both parties can reach an agreement through negotiation or mediation by a third party.