I am planning to wire my house for Ethernet, with wall sockets in various rooms. At the moment it will be plain 1Gbit/s ethernet, but in future I want the potential to upgrade to 10Gbit/s and power-over-ethernet (POE). I am aware that there are wiring code restrictions on where power outlets may be placed. Are there any similar code requirements that would apply to POE sockets, or other practical considerations that would apply to their location (e.g. wiring constraints)?
I live in the UK, in a 1930s house. This means: power voltage is nominal 240V, walls are constructed of solid brick with plaster facing (making it non-trivial to install or relocate outlets), wiring can run in the attic, under floorboards, or in the crawl-space beneath the house. There is no air conditioning; these spaces are ventilated but not used for air circulation.
I haven't bought any supplies yet, but I'm planning to use Cat 6, unshielded, Low Smoke Zero Halogen cable (assuming runs will be short enough for 10Gbit/s over Cat 6). I'm hoping to install standard metal back-boxes in the walls to mount 8P8C faceplates, probably with PVC conduit to take the cables down under the floor.
So far, I'm aware that data cables should not run parallel to power cables (to avoid interference), and definitely not next to each other or in the same conduit (for safety). However, for reasons of aesthetics and convenience, I'm inclined to put the Ethernet outlets close to power outlets. Many of these are currently mounted in the skirting board (which I'm aware is lower than modern wiring regulations suggest).