Bathroom wall

Hi I am about to renovate an entire bathroom
Should I render a brickface wall (with uneven brickface) which will be partly covered in tiles and the rest painted.......or ........place 18mm galv steel furring channels onto brickwork (at 450 spacing) and then cover with Villaboard ready for tiling and painting??
NB some areas of wall will need to have electrical wiring either chased into brickwork or hidden behind Villaboard with tap plumbing also punching through wall above bath and sink and a hinged bath screen also to be fixed to wall
Thanks:B


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