(a) In enacting an ordinance, it is presumed that:
(1) Compliance with the constitutions of the State and of the United States is intended;
(2) The entire ordinance is intended to be effective;
(3) A just and reasonable result is intended;
(4) A result feasible of execution is intended.
(O.R.C. 1.47)
(b) An ordinance is presumed to be prospective in its operation unless expressly made retrospective.
(O.R.C. 1.48)
(c) If an ordinance is ambiguous, the court, in determining the intention of Council may consider among other matters:
(1) The object sought to be attained;
(2) The circumstances under which the ordinance was enacted;
(3) The legislative history;
(4) The common law or former legislative provisions, including laws upon the same or similar subjects;
(5) The consequences of a particular construction;
(6) The administrative construction of the ordinance.
(O.R.C. 1.49)