Where can I buy a key after paying the house?

Take the key from the property when you close the house.

Taking the key is to close the house. However, the house cannot be closed as soon as it is closed. The general real estate agent will inform the owner that the delivery time will be earlier. I suggest that you don't accept the house on the first day and the second day, because many people will come to accept the house at the same time on those two days, and the people accompanying the acceptance will not have much time to accompany you to look at the house carefully. It is best to do it on the third or fourth day.

Don't pay some property fees and related expenses yet. At this time, the property will urge you to pay, and you can communicate with them. After the acceptance, you can pay again. To get the keys from the property management office, you need several keys, such as floor key, access control key, email key, water meter and electricity meter (if there is a remote meter reading), and then you can go home with the property management personnel.