Hi,
I PM u le.
Actually ma. It depends on urself de. If u wan to do reno fast, best to confirm ard 1-2mths earlier. so tat the ID can work on your designs. so when u start ur reno, all the designs n materials are ok.
For my case. I confirm ID ard 1mth b4 i start my reno. so tat she can do get all her designs out for my approval n got time to amend on the designs.
But along the way, we will change some tings here n there to suit our way. keke...