7 . To promote and retain affordable housing . 8 . To encourage and strengthen civic pride .
9 . To ensure the harmonious , orderly , and efficient growth and development of the city .
Conservation districts are designated as overlays to standard zoning districts . Authorized uses must be permitted in both the underlying zoning district and the overlay district . Property designated as a conservation district may have additional designations such as a historic district . Such property shall comply with all applicable use restrictions .
Separate ordinances are required to designate each conservation district . Ordinances designating each district shall identify the designated boundaries , applicable designation criteria , and design standards for that district and be consistent with any adopted neighborhood and / or city plans .
In the event of a conflict between the provisions of a specific conservation district and the underlying zoning district regulations , the provisions of the conservation district ordinance shall control .
B . Conservation District Designation . To be considered for designation as a conservation district , the area must meet the following criteria :
1 . Be located in an area in which a neighborhood plan has been adopted by City Council and the plan recommends a conservation district overlay .
2 . The proposed geographic boundaries of the conservation district must be consistent with the boundaries of the adopted neighborhood plan .
3 . Contain a minimum of one blockface ( all the lots on one side of a block ). 4 . At least 75 % of the structures in the proposed district : a . Were improved at least 25 years ago and are presently improved .
5 . Possess one or more of the following distinctive features that create a cohesive , identifiable setting , character , or association :
a . Scale , size , type of construction , or distinctive building materials . b . Spatial relationships between buildings .
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