美國房屋的壽命： 平均50-70 年。 維護的差的話，20 年。

https://www.nyrentownsell.com/blog/lifespan-of-a-house/amp/

 

 

 

 

 

The average life span of a house in the United States is about 50-70 years. Houses can last for decades if they are well-maintained and have been constructed with quality materials. A poorly built home may not last more than 20 years.