Iowa Code Title XIV. Property [Chs. 555-594A] § 563.2. Contribution by adjoining owner

If the adjoining owner contributes one-half of the expense of building such wall, then it is a wall in common between them, but if the adjoining owner refuses to contribute, the adjoining owner shall have the right to make it a wall in common by paying to the person who erected or maintained it one-half of its appraised value at the time of using it.