[Neil]

Originally Posted by [email protected]

have to be wary of potential wiring overloads.

Technically it should not be possible to overload the wiring if you have the correct fuses in your plugs. The fuse is to protect the wiring, if you overload your ring main circuit you will trip the ring main breaker (or blow the fuse but I think your flats have breakers). If you overload an extension its fuse should blow.