Resumen: The present study deals with the income of the cities from public land leases made to individuals and its connection with the constitution of real rights over another's property. Likewise, two decrees of the Senate of Puteoli, recently found, are analyzed, which serve as a basis for the study of surface law, a purely Roman institution that finds little correspondence in other rights, both ancient and modern. Idioma: bul Año: 2022 Publicado en: Ius Romanum (Sofiâ) 1 (2022), 339-357 ISSN: 2367-7007 Originalmente disponible en: Texto completo de la revista