First of all, the advantage of the new house is that you don't have to pay too much tax, and the procedures are relatively simple, and the decoration style can be according to your own ideas. Disadvantages: if you buy an auction house, you still need to wait for the delivery of the house (you can not worry about it), and the surrounding facilities are not perfect.
Advantages of second-hand houses The surrounding facilities are complete and mature. Don't worry about the decoration, but it's more troublesome. Inferior purchase procedures are more troublesome, but now there are basically intermediaries to re-run the process, so it's okay. Like Chengdu, where there is a good house and a home, the procedures for second-hand houses here are 2000, which is more cost-effective, so don't worry.
I suggest that you can download an excellent room app, on which you can register the entrustment.
So in comparison, it depends on what your focus is, and I hope I can help you!