there is no static ip available with residential broadband
There are very few residential ISPs that offer static IP addresses and finding one that also offers service via FTTP will probably be impossible.
So backwards for a modern country. In Australia all ISPs I know of do and I currently use Hyperoptic here which also does. Static IPv6 is free by default with Hyperoptic (like it should be).
Good luck in finding another FTTP supplier in your new build.