7-12-1133. Assessment of costs -- area, lot, taxable valuation, square footage, and flat-fee options -- provisions for property classifications. (1) At the same time that the board submits the annual budget and work plan to the governing body as provided in 7-12-1132, the board shall also recommend to the governing body a method of levying an assessment on the property within the district that will best ensure that the assessment on each lot or parcel is equitable in proportion to the benefits to be received.

(2) The governing body shall annually assess the entire cost of the district against the entire district using a method that best ensures that the assessment on each lot or parcel is equitable in proportion to the benefits to be received. In determining the method of assessment to be used, the governing body shall consider the recommendations of the board. The governing board shall levy the assessment using one of the following methods:

(a) each lot or parcel of land within the district may be assessed for that part of the whole cost that its area bears to the area of the entire district, exclusive of streets, avenues, alleys, and public places;

(b) if the governing body determines that the benefits derived by each lot or parcel are substantially equivalent, the cost may be assessed equally to each lot or parcel located within the district without regard to the area of the lot or parcel;

(c) if the governing body determines that benefits derived by each lot or parcel are proportional, the governing body may use standard criteria, such as individual occupancy or daily use, and make the assessment on a flat-fee basis based on the criteria;

(d) each lot or parcel of land, including the improvements on the lot or parcel, may be assessed for that part of the whole cost of the district that its taxable valuation bears to the total taxable valuation of the property of the district;

(e) each building may be assessed for that part of the whole cost of the district that the occupied or income-producing area of the building above the first floor bears to the area of the entire district;

(f) if the governing body determines that benefits derived by each lot or parcel are disproportional, the governing body may use classification criteria, such as location within the district, economic impact, or any other measurable criteria, in conjunction with methods of assessing fees outlined in this subsection (2). Each classification must have its own rate. There may not be more than six classifications upon which a charge is imposed.

(g) by using any combination of the assessment options provided in subsections (2)(a) through (2)(f).

(3) If a district is expanded, the land within the expanded area or property with a similar purpose in the district must be assessed as provided for in subsection (2) for the duration of the district.