Is it permissible for the husband's father to force the couple to leave the house of his daughter-in-law, which she built with her own money and gold, and then demolish it and build in its place for his sons, and is the wife entitled to demand her money and gold at their current value?

The ruling in the mentioned issue is based on knowing the agreement that took place between the questioner and the landowner when the house was built, whether it was a gift, a loan, or something else. Such disputes are referred to the courts for resolution. If it is proven that the questioner has the right to claim the value of the building, then what is considered is its value, not the value of the gold that was spent in its construction.