San Francisco Housing Authority (SFHA) properties, according to SFHA.org, the official site of the SFHA. The SFHA is not part of the City and County of San Francisco and these are provided by the Enterprise GIS department as a convenience.
These footprint extents are collapsed from an earlier 3D building model provided by Pictometry of 2010, and have been refined from a version of building masses publicly available on the open data portal for over two years.The building masses were manually split with reference to parcel lines, but using vertices from the building mass wherever possible.These split footprints correspond closely to individual structures even where there are common walls; the goal of the splitting process was to divide the building mass wherever there was likely to be a firewall.
An arbitrary identifier was assigned based on a descending sort of building area for 177,023 footprints. The centroid of each footprint was used to join a property identifier from a draft of the San Francisco Enterprise GIS Program's cartographic base, which provides continuous coverage with distinct right-of-way areas as well as selected nearby parcels from adjacent counties. See accompanying document SF_BldgFoot_2017-05_description.pdf for more on methodology and motivation
US Census 2000 Tract Geography modified to conform with SFGIS Library Geography (Streets, Lakes, et al). Water areas have been clipped from this layer. Please refer to the Federal Census for the latest data, these boundaries provided as a convenience.
Boundary of the Presidio. A separate jurisdiction from the City of San Francisco. Layer created from Block 1300, Lot 001 of the City Lots layer. Learn more about the unique national park at http://www.presidio.gov/
All active addresses from the City's Enterprise Addressing System, including sub-addresses, such as units. Includes references to parcel and street centerline data. Updated nightly.See EAS Base Addresses for base addresses not including units.