zhè fèn zū lìn hé tong míng wén guī dìng / zū kè bù dé shàn zì gǎi biàn fáng wū jié gòu

这份租赁合同明文规定，租客不得擅自改变房屋结构。

This lease contract expressly stipulates in writing that tenants may not alter the property's structure without permission.