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Produced by the Sanborn Map Company from the late 1860s to mid 1970s, Sanborn Fire Insurance Atlases are highly detailed historical maps that allowed insurance companies to assess fire risk for individual structures in urban and commercial areas throughout North America. Today they represent a unique and priceless tool for researchers focused on historical geography, architecture, environmental history, the growth of cities and the social composition of urban areas.
The maps display not only highly accurate building footprints but also various other construction specifics, including building materials, the location of windows, doors and firewalls, roof composition, and number of floors. Additionally, they also depict a host of supplementary urban infrastructure details such as the names and widths of streets and the presence of water mains, fire hydrants and alarm systems. Combined, Sanborn Maps undoubtedly represent one of the most detailed sources of historic land use and built environment reference for urban areas in North America.
Services
Collection materials can be made available in digital format for non-commercial, research or personal use. Cost for such services include a pull fee of $10 per volume and an imaging fee of $20 per map sheet. Payment for services may be made online using a credit card.
Access
Elements within the Sanborn Map Collection are considered archival materials. Access to the Collection is by appointment only. Collection staff, however, will be more than happy to assist researchers and students alike via email. Send your research inquiries and service requests to听sanborn@csun.edu. Please include as much information as possible. Details such as a street address or intersection can be most useful in determining whether or not coverage exists for your exact area of interest.
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