Smoke alarms. Specific requirements for the kitchen if you have no current plans, perhaps pull in separate cables for use later. As your rewiring, think about the positioning of the CU.
Echo those thoughts on calibration & compliance
Yes thanks. I already have a handful of extra cables to run in mind for future use. Additional lighting on landing and stairs for night use. Potential underfloor heating upgrades if I ever renovate the bathroom. Some circuits for the attic when I eventually board that out. Hadn't thought about it until now but just added emergency lighting to that list and the things I haven't thought about yet etc. The consumer unit is currently in the kitchen which is OK so I'll probably leave it there as moving it to where I would ideally like it means paying for about 20km of tails I'd rather not run via the crawl space under the house.