I also have a 3 bed semi. Placed my comms cab in the attic and ran shielded Cat6 cable down into each room.
Could do with a small cable tidy up tbh
Not the best photo, but you get the idea lol
Out of interest, how did you run the cables down into each room? Chase them in along with power cables? I thought there was a minimum distance between Cat 5/6 and electrical wiring?