homebuyers survey需要做嗎?

背景:买房,offer accepted,对方律师已经把draft contract paper发给我的律师了。
今天中介问我:“Could you please let me know if you are planning on getting a homebuyers survey done on the property, as if so this should be booked in asap to avoid any delays at the end.”
请问:这个homebuyers survey是什么?我的律师不是已经在做search了吗?
第一次买房,完全没有任何头绪,谢谢大家~

home buyer report is not compulsory, however, you can have it done for peace of mind if you have any concerns regarding the structure of the property.

谢谢,我们买的是老房子改的flat