Property parcel boundary data. (More info)

Data Location


The CityLots spatial data layer is a representation of the City and County of San Francisco's Subdivision parcels and is updated nightly. Each of the 200,000-plus polygons has a unique BLKLOT identifier which is the Assessor Parcel Number (APN) Multiple level (condominium, live/work, et al) lots are represented as well, with their ground or base lot being the MAPBLKLOT key.

Data Availability

  • Y Openly licensed
  • Y Is the data available for free
  • Y Is the data machine readable
  • Y Is the data provided on a timely and up to date basis
  • Y Available in bulk
  • Y Publicly available
  • Y Is the data available online
  • Y Does the data exist
  • Y Is data in digital form
  • Yes
  • No
  • Unsure
  • No data


Date the data became available   Unknown
Format of data   shapefiles (zipped)
Reviewer   Jude Calvillo
Submitters   Jude Calvillo
Last modified   Sat May 14 2016 15:46:22 GMT+0000 (UTC)