Washer drier in En Suite

I want a washer drier putting into the En suite.In the en suite there is a cupboard with a door on it that the washer drier could go in.there is no bath in the en suite jst a shower,toilet and sink.Its a large en suite.The cupboard where i want to put the washer drier is next to the enclosed shower.The only electric supply in the en suite is the lights the en suite light switch is outside the en suite in the bedroom.Is it possible to have a socket etc put into the cupboard? If its possible would it be best to get the plunbing sorted first or the electrics ?Thanks