Land parcels from the Assessor's Roll
Real estate boundaries- also know as parcels. Each file represents an annual snapshot of the current parcel boundaries.
Property data and boundaries. June 2013 update of the County Assessor's Secured Roll file.
All Alameda County Assessor parcel data for the City of Oakland, from the Secured Roll released in July 2014.
All Oakland property information from the Assessors Secured Roll