Moving meters for loo under stairs?

[herbaceous]

Hello

This is a rather niche question, I realise, but there may be just the person lurking who can answer my question.

I want to put a loo in under our stairs, and have a builder all lined up. However, our electric and gas meters are in that cupboard. My builder has told me I need to get them moved, and asking the distributor it seems that moving the electric meter alone could cost between £1,000 and £6,000 . Naturally, I want to avoid this, but preferably also avoid being electrocuted.

Is it really necessary to move the meters? Can't I box them in, and keep the watery elements of the cloakroom away from the sparky bits of the meter and fuse box?

I have both my gas and electricity meters (and consumer unit) in my under stairs downstairs loo (under the sink and above the door, respectively). Gas men, builders, meter readers and surveyors have all seen it and no one's ever raised an eyebrow.

Update: according to the council, my builder, and a specialist 'khazi under stairs' company, my meters and CU would have to move. As this is may well be hugely expensive and disruptive, we're going to defer the decision. We'll lay the necessary plumbing while doing the kitchen up (as waste pipe has to go under kitchen floor), then decide at a later date if we can be arsed with the hassle/expense.

Thanks for all your help!