ef37a wrote:Very old buildings often have a vast, continuous loft space. It might therefore be possible to go up from the router, across the ceiling and down into the studio?
An alternative could be to run a cable outside in some 40mm waste pipe to keep the vermin off it? Even on listed buildings I think they allow you plumbing!
Yes there's some access, but there are actually 3 phases of old building before you get to the studio extension so it's all a bit of a jigsaw. There'll be a way to do it for sure, but it might be a bit convoluted. We have some renovations planned soon for one part of the older house which will involve gutting some of the internal wall surfaces, ceilings and partial rewiring, so that might be an opportune moment to get some network cabling in with minimal fuss.
External is certainly an option too - and would be quite straightforward to do.