There's a fairly modern consumer unit in the kitchen of The Cottage, with a set of fairly modern wires leading off in to various hidden voids and inaccessible rat-runs. But save for a couple of circuits (the kitchen ring-main, cooker, garage feed and boiler feed) the wiring is a complete and total mess once you get away from the consumer unit.
Wires of unknown provenance are plastered, caulked and cemented in to walls, around beams and through floors, leaving a distinct possibility of accidental damage and unsightly bulges in some very odd places.
So, I've been spending the day revealing all the wires, tracing their circuits and removing any which are no longer connected, or are live but terminated in a box somewhere, rather than a socket or appliance.
I discovered one neat little circuit under the fascia of the staircase which had a plug (live) connected to a socket that then led to a terminal box. Something long forgotten in the bathroom seemed to have been the original intent for this little back-to-front assembly.
The other socket (left of pic below) was dead.
I also discovered a nest of terminal boxes behind a dot-and-dabbed plasterboard fascia in the kitchen, which explains why there are so many wires leading away from the consumer board.
A couple of hours' investigation on these determined that 3 were redundant and the other four were running ampage of varying types to some wholly unsuitable circuits. There was a 32A double-socket next to the sink.
And a little more digging (literally) revealed some live circuits cemented in to walls here and there, not so much in understandable directions (like up or down from a socket), but at curving paths through external walls and doorways.
This fine example, below, is a 32A circuit in a 13A suitable wire, cemented in to the kitchen-to-annex doorway and then chased horizontally along the rendered external wall. The mind boggles.
I've disconnected everything except the newer circuits in the kitchen, and ripped out all of the old wiring. I'll be running new ring-mains in a more logical fashion and getting a competent-person to sign them off for safety before they're connected.