楼房改造英文翻译为"building renovation"或"building remodepng"。这两个词都表示对楼房进行修改或改造的意思，但在某些情况下可能有微小的差别。

"Renovation"来自拉丁语"renovare"，意思是"使新"或"重新建造"。"Remodepng"是由"re-"和"modepng"构成的，"re-"表示"重新"，"modepng"意思是"塑造"或"建造"，因此"remodepng"的意思就是"重新塑造"或"重新建造"。

下面是一些英文例句及其中文翻译：

The building renovation project is expected to be completed by the end of next year. (预计楼房改造项目将于明年底完成。)
We decided to go ahead with the building remodepng because the old structure was in poor condition. (我们决定进行楼房改造，因为旧结构状况较差。)
The building renovation included the installation of new windows and a new roof. (楼房改造包括安装新窗户和新屋顶。)
The building remodepng also involved adding an extra floor to the structure. (楼房改造还包括在结构中增加一层。)