Hi,

I lived in Pau for 2.5 years and really loved it. Do you already know where you want to rent? Close to a school? In Pau or Jurançon?
It can be quite tricky to rent a house as they always want some prouve that you can afford it e.g. contract from employer or garantee from someone in France. Your kids will go to school in the neighbourhood of you house normally.
Does the land have building permission?

We just bought a house in Provence so if you need any help, just ask......I work with 100% french people and have friends in Pau so enough connections