I'm back in London in time to pick the Bomber up from training.
Point of order Mr Chairman; if you are ever in my mum and dad's house trying to sort out a problem with the lights, the fusebox for the conservatory is in the garage not under the stairs with everything else.
This will save you from lying on concrete in the dark for about half an hour trying to figure out which 5 amp fuse will isolate the circuit.
At least the garage unit has circuit breakers. The main box has old school hand threaded wire fuses. They really ought to upgrade to a new consumer unit. Arranging that would be a pain the backside though. Perhaps I ought to think about replacing the wire fuses with MCBs (like this) next time I am back.