(a) Applicability. The provisions of this section shall apply only to existing streets in areas that were zoned, subdivided, and partially or wholly developed for single-family detached dwellings and two family detached dwellings prior to annexation into the city and whose use and zoning remains as such after annexation into the City. This section does not reflect upon the actual benefit which a property obtains because of public improvements which are financed through an improvement district.

(b) Cost sharing by city. When an unimproved street has public improvements constructed pursuant to this division, the city shall pay 20 percent of the estimated unit cost per foot of an average residential street as determined in subsection 118-58(b).

(c) Multiple frontage lot. Multiple frontage lots shall be assessed subject to the provisions of subsection 118-58(c), less the City's share as set forth in subsection (b) of this section. (Code 1979, § 34-155)