We all know how bright and lovely are Apple’s retail stores – much nicer than CurrysDigital or PC World. They’re clean, well stocked and you can use them as a free Internet café.

So it should come as no surprise that Apple spends rather a lot of money on them. But did you realise just how much, and how many toilets and urinals reside therein?

Reports suggest that the recently opened Boston Apple Store cost the Mac and iPhone company a whopping $6 million to construct, including a quarter of a million dollars just to smash down the old building.

The electrical and plumbing permits for Apple's Boylston Street (Boston) store reveal that the Mac maker spent about $6 million on building it.

Apple’s retail gurus say "the complexity of an Apple store is visible to visitors, but beneath the structure of stainless steel, glass and stone is another level of complexity that is just as important."

For just under a million dollars Apple paid for 550 lighting fixtures, 224 electrical receptacles and 25 switched outlets, 17 motors for air conditioning and elevator operations, a 200KVA gas-fired generator inside the roof building to supply electricity when outages occur, 51 security devices, 94 data outlets and 90 telecommunications devices.

While Apple is trying to be more environmentally friendly it transpires that the power consumed for lighting could power up "12 average-sized homes."

If you really want to get down and dirty with the Apple Store the permits also reveal that the plumbing includes “three water closets, one kitchen sink and four lavatories in the basement” (what’s the difference between a WC and a lavatory?), plus one water heater, slop sink, one urinal, one drinking fountain and two boilers.

We can't wait for more detailed information from the Apple boggers... I mean bloggers.