I am looking for California state parcel data such as owner name, no. of stories, year built etc., for each parcel. I can get to the level that I can browse them in property appraiser site but don't see data download options.
I have addressed the topic in a previous question that was partially-related to this one.
That being said, here are the places that I know of off the top of my head that have publicly-available parcel data in shapefile form.
Through the Southern California Association of Governments (SCAG), you can obtain parcel shapefile data for Imperial, Los Angeles, Orange, Riverside, San Bernardino, and Ventura County. In order to obtain the latest data available, navigate to this ftp site and download the file titled parcel_data.zip.
The other one that I know of is from the San Diego Association of Governments (SANDAG).
I am not sure the parcels of the entire state are readily available for free. You may have to look for it on a county by county basis, which may be laborious for 58 counties. This page has a link to the GIS site for each county: http://www.coordinatedlegal.com/gis.html
The State of California Geoportal website has downloadable parcels for selected counties: http://portal.gis.ca.gov/geoportal/catalog/search/browse/browse.page
Following CA Counties data download information is available in the below links:
County Name, FIPS Code ,GIS Home ,County Data Download ,Parcel Data Contact Date ,Contact Verified, Cost Information
The CA GIS Council has announced the completion of the 2014 California Parcels Dataset. It is currently available on the LA County GIS website until the State can put it on theirs. http://egis3.lacounty.gov/dataportal/2015/09/11/california-statewide-parcel-boundaries/