In 2005, the Historic Preservation Commission was successful in receiving a state historic fund grant, matched with Community Development Block Grant (CDBG) dollars, to intensively study the eligibility of the north side neighborhood for designation as historic districts.
The study area was generally from I-25 to Craig Street, and from 10th Street on the south to about 29th Street on the north. Because of funding constraints, the first phase of the study included the area between Santa Fe and Craig (the west side), and between 10th Street and 19th Street. The services of Historitecture Inc. (Adam Thomas, architectural historian), were retained to conduct the 1st phase of the study. The study was completed in May 2007.
The intensive survey resulted in an inventory of 347 properties. Of these, 24 were field-determined as eligible for listing in the National Register of Historic Places and 43 were found eligible for the Pueblo Register of Cultural Resources. Additionally, 275 properties could potentially contribute to a historic district.
The study area was found to encompass 2 distinctive neighborhoods. The southern neighborhood extends southward from West 15th Street. The houses in this particular area are on average older (circa 1870-1910) and smaller than those in the northern portion of the survey area, and they are oriented toward the east-west streets.
The northern neighborhood extends from 15th Street to 19th Street. The period of significance is circa 1890-1950, and the houses are oriented to the north-south streets. The study recommended the designation of two separate historic districts to embody the significance of these 2 neighborhoods, the Thatcher Historic district to the south and the 18th Street district to the north.