Thanks all.
3-4 WAPs seems a lot for a 3-bedroom house - is there a particular requirement (due to distance or construction material) for so many?
It's on 3 floors with floor/ceiling slabs of reinforced concrete. There's also a run of around 40m to my workshop/man-cave/radio shack. It could make sense to do that in fibre - apart from speed and reliability, I don't want to be inducing currents in a long wire when I'm transmitting on HF.
I was imagining an ethernet 'spine' linking wireless access points on each floor, with a few ethernet ports for TV's and perhaps printers. I don't know how easy it is to arrange those access points so that client devices can seamlessly hop between them depending on signal strength and with a common SSID/password. How is that managed? I imagine it’s more than just setting up normal independent access points? I must need a single device issuing IPs though any of them so devices appear on the same network?
It's not a data centre, but wife and I both work a lot from home involving lots of Zoom calls, sprog watches Netflix and there will be a bunch of security cameras.