Internet search for the Riverside County Planning Department "What's My Zoning" interactive website that will prompt you to identify the property by APN, address, etc., etc. Takes a ew arduous steps but the "full report" should provide all of the underlying property info you need, which as others suggested will be the basis of a CRMLS search, and/or a search of the corresonding Realist database. I got a million years of time on my hand if I can be of any assistance, if you contact me. Good luck. GM