The owners of lots or portions of lots fronting any public street or place shall have the duty of constructing or causing the construction of sidewalks in front of their properties upon notice to do so by the director of public works:
A. Pursuant to section 12.04.010 of this title; or
B. When said construction is required as a condition of a permit, or license issued by the city, or an approval granted by the city for improvements to be constructed on, or development of said property; or
C. When the city approves a request by the property owner and issues an encroachment permit to install sidewalk; or
D. Whenever the city council of the city upon its own motion orders the installation of sidewalk improvements in front of said property.
(Ord. 645, 1995; Ord. 521 § 1(part), 1987).