Inventory Types

The earliest built structures in San Francisco trace back to the Spanish Empire’s missionary efforts in the 1700s. The original Mission Dolores, a cornerstone of this history, dates to 1776. While most residential structures in the city were built between the late 1800s and early 1900s, their recorded construction dates often appear as “1900” in city records. This placeholder date typically reflects incomplete historical documentation rather than the actual year of construction.