A party wall agreement clarifies the ownership and maintenance obligations of the common wall. The focus is on preventing and avoiding disputes in the face of a problem with a party wall that concerns adjacent owners. Typically, ASAs exist, so both parties know the “rules of the game”, since they refer to the common wall. In this way, when a problem arises, such as a party wants to make changes to the wall, the agreement stipulates how to do it and who has to pay for it. The whole point is to define who is responsible and have the rights of both parties before a problem arises, not after a problem arises when the two parties have different expectations and motivations. We`re sorry to say that party walls aren`t walls where parties are held, so you can stop wondering when you need to deliver the wine.