572.20  Priority as to buildings over prior liens upon land.
  Mechanics’ liens, including those for additions, repairs, and betterments, shall attach to the building or improvement for which the material or labor was furnished or done, in preference to any prior lien, encumbrance, or mortgage upon the land upon which such building or improvement was erected or situated except as provided in sections 572.10 and 572.11.
[R60, §1853, 1855; C73, §2139, 2141; C97, §3095; C24, 27, 31, 35, 39, §10289; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §572.20]
2007 Acts, ch 83, §13