N.D. Cent. Code § 35-27-21
In addition to the lien provided by this chapter, but subject to the conditions of section 35-27-02, when material is furnished or labor performed in the erection or construction of an original, complete, and independent building, structure, or improvement, whether the same is placed upon a foundation or not, the lien attaches to the building or improvement in preference to any prior title, claim, lien, encumbrance, or mortgage upon the land upon which the building, erection, or improvement is erected. Upon the foreclosure of the lien, the building or improvement may be sold separately from the land and may be removed from the land within thirty days after the sale. The sale and removal of a structure or improvement separately from the land operates as a full satisfaction and discharge of the lien upon the real estate. At the time the material is furnished for such improvement, the seller shall notify the purchaser by delivering to the purchaser a written notice stating that the seller claims the right to foreclose the lien under the laws of the state, and in the event that there is a default in payment for the improvement, to remove the building from the real estate upon which it is placed regardless of whether or not said building is placed upon a foundation.
N.D.C.C. § 35-27-21