How much is it for a wall to be put into the bathroom?

How much would it cost to put a 4 foot length wall in a bathroom.I want to make it into 2 bathrooms.

Answers:
Just to put up a simple wall, taped, textured and painted it would be very inexpensive not more than $300 if you hired it out.

Other answers:
With permits , materials ,labor,and depending on the fixtures you want,1200.00 or more.

With permits , materials ,labor,and depending on the fixtures you want,1200.00 or more.