Bathroom appliance help please

Hi guys just after a bit of advice here please

Customer wants to build a full height cupboard and the bottom of the bath and put a washing machine and tumble dryer in it. It will have a door on the cupboard.

How would regs apply to this ? I can make it 3 x flex outlets and sfs outside the bathroom if need be rather than sockets.

The appliances would technically be within 600mm from the edge of the bath but inside a cupboard so couldn't remember if that then meant zones did not apply 

Thank you for any help here