Last September I bought a condo in Pak Kret, Nonthaburi but it needed renovation so stayed in a serviced appartment in soi Ton Son, Ploenchit, Bangkok. I finally moved in on the 10th December but did not go to the Nonthaburi immigration office to notify them of a change of address until the 19th.
I presented, my passport and copies of my ID and visa passport pages, my landing card and the chanot. I do not yet have a yellow book and the blue book has no name in it - the former owner bought it before blue books were introduced and never asked for one.
The immigration staff were quick, about half an hour, and friendly. There was no fine.
Before leaving I asked if I needed to notify immigration each time I went upcountry for a few days. The official said, no but be careful. If the hotel where you stay notifies immigration you will have to notify immigration on return to base, so tell the hotel you are already registered and it does not need to do so. .