"Qualified historical property," for purposes of this chapter, means privately owned property which is not exempt from property taxation and which meets either of the following:
(a) The property is listed in the National Register of Historic Places or located in a registered historic district, as defined in Title 26 of the Code of Federal Regulations.
(b) The property is listed in any state, city, county, or city and county official register of historical or architecturally significant sites, places, or landmarks.
(Added by Ord. No. 9425 (N.S.), effective 2-15-02)