Montgomery City Zoning Code

Any individual building, structure or site that is listed on the National and/or State Register, or that is declared eligible for the National and/or State Register shall automatically qualify as a local landmark;

A site or building associated with a person who has contributed to an historical or cultural township, state or national event;

Any structure, building, house or grouping of these (district), as well as man-made or natural landscape sites which are significant in exemplifying the cultural, social, economic, or historical heritage of the Township;

Individual houses and supporting structures or districts that exhibit architectural value in either reflecting an historic era or reflecting a specific architectural type, or that exhibit significant architectural innovation or are the work of a particularly significant architect or builder.

Any building, site or other structure related to accepted folklore, legend, or significant historic event;

Any site containing ruins that have important prehistoric or historic value.