Iowa Code § 563.1: Resting wall on neighbor’s land.

Where building lots have been surveyed and plats thereof recorded, anyone who is about to build contiguous to the land of another may, if there be no wall on the line between them, build a brick, reinforced concrete, or stone wall thereon, when the whole thickness of such wall above the cellar wall does not exceed eighteen inches exclusive of the plastering, and rest one-half thereof on the adjoining land, but the adjoining owner shall not be compelled to contribute to the expense of building said wall.