21A.51.080: HISTORIC RESOURCE SURVEYS:
   A.   Existing Historic Resource Surveys: Any historic resource survey that was conducted for the city prior to the amendment of this chapter shall be utilized by the planning director and the historic landmark commission in applying provisions of Section 21A.34.020 the H Historic Preservation Overlay District. Any subsequent adoption of a historic resource survey will be done by ordinance in accordance with the provisions in this chapter and will supersede previous surveys.
   B.   Updates to Historic Resource Surveys:
      1.   Applicability: The city aims to update historic resource surveys on a periodic basis as recommended by the National Park Service. Updates to surveys are for land use purposes to determine periods of significance, to determine historic status of individual properties, to update the national register, and to keep archival records on historic properties. Updates to a historic resource survey for existing local historic district is subject to the following:
         a.   The standards of the H Historic Preservation Overlay apply to those properties within an adopted local historic district. Any other properties evaluated in a historic resource survey outside the boundary of a designated local district or thematic designation will not be subject to the land use regulations associated with historic status designations in the H Historic Preservation Overlay District.
         b.   An updated historic resource survey maintains the boundaries of a local historic or the properties within a thematic designation but may update the historic status of properties within the adopted H Historic Preservation Overlay District.
         c.   Historic Status Determinations: Instances where the historic status of an individual property within a local historic district is in question, the zoning administrator will use the provisions of Subsection 21A.34.020.D to make a timely determination.
         d.   Any properties changing status from the most recent historic resource survey shall be specifically identified in the updated survey and their period of significance and historic status listed.
      2.   Process for Updating Historic Resource Surveys:
         a.   Public Hearings: A public hearing shall be held with both the historic landmark commission and the planning commission in accordance with the standards and procedures set forth in Chapter 21A.10, "General Application and Public Hearing Procedures", of this title. The historic landmark commission and planning commission shall recommend approval or denial of the updated historic resource survey or the approval of some modification of the updated historic resource survey and the recommendation will be submitted to the city council.
         b.   City Council: Following the transmittal of the historic landmark commission's recommendation, the city council shall hold a public hearing to consider adopting the updated historic survey in accordance with the procedures set forth in Chapter 21A.10, "General Application and Public Hearing Procedures", of this title. The city council may, by a majority vote, adopt the updated historic resource survey. In deciding to adopt an updated historic resource survey, the city council may consider the following in their decision making:
         (1)   Any benefit or impact that extending the period of significance would have on the local district or thematic designation and the city;
         (2)   Any new period of significance in the updated survey is identified and associated with at least one of the following:
            (a)    Events that have made significant contribution to the important patterns of history, or
            (b)    Lives of persons significant in the history of the city, region, state, or nation, or
            (c)    The distinctive characteristics of a type, period of significance or method of construction; or the work of a notable architect or master craftsman, or
            (d)   Information important in the understanding of the prehistory or history of Salt Lake City; and
         (3)   Any properties within a new period of significance will be assessed for aspects of integrity in terms of location, design, setting, materials, workmanship, feeling and association as defined by the National Park Service Aspects of integrity. When analyzing integrity, the collective historic value of the buildings and structures in a local historic district taken together may be greater than the historic value of each individual building or structure in a district. If integrity is intact, the property is denoted as contributing in the updated survey;
         (4)   Any notable examples of elements of the city's history, development patterns or architecture not typically found in other local historic districts within Salt Lake City are specifically identified for any new periods of significance in the updated survey;
         (5)   The historic survey update would be in the overall public interest.
   C.   City Council Action: If an updated historic resource survey is adopted by the city council, the updated historic resource survey including any updated historic status designations shall be used when applying provisions of the H Historic Preservation Overlay District in Section 21A.34.020. The decision to update a historic resource survey will go into effect on the date of the publication of the related ordinance unless otherwise noted on the adopted ordinance. (Ord. 67-23, 2023)