Real estate law is the branch of private law that deals with and regulates various aspects of private life, such as condominiums, rent, purchase and sale of real estate, adverse possession and home financing.

Its roots lie in the right to property, either as a subjective right to own a thing, or as a specialized branch of legal doctrine.

As part of real estate law, real estate registry law can be mentioned, which takes care of legal phenomena allied to real estate registration.