The historic review board shall designate a historic resource as a historic landmark if it finds that the following criteria are met:
(1) Designation is consistent with applicable provisions of the Metro Plan and applicable refinement plans.
(2) Designation is based on a determination of historic significance according to one or more of the following:
(a) Is associated with events that have made a significant contribution to the broad patterns of history.
(b) Is associated with the lives of persons significant to our past.
(c) Embodies the distinctive characteristics of a type, period, or method of construction, or represents the work of a master, or possesses high artistic values, or represents a significant and distinguishable entity whose components may lack individual distinction.
(d) Yields, or may be likely to yield, information important to prehistory or history.
(3) In addition to EC 9.8165(1) and (2) above, criteria for designation of a historic resource that was moved, is primarily commemorative in intent, or less than fifty years of age shall include the following considerations:
(a) A historic resource moved from its original location or a place that has historic significance can be eligible if it has historic architectural significance or is the surviving property most importantly associated with a historic person or event.
(b) A historic resource that is primarily commemorative in intent can be eligible if design, age, tradition, or symbolic value has invested it with its own historic significance.
(c) A historic resource achieving significance within the last fifty years can be eligible if it is of exceptional importance.