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Zoning Database (OZD)

The Sonoma County Permit and Resource Management Department (PRMD) maintains an Official Zoning Database (OZD) in digital form. The OZD was adopted by the Board of Supervisors on June 12, 2007 and became official on July 12, 2007. This zoning database was created using Geographic Information Systems (GIS) mapping software and replaces all hard-copy zoning maps that were formally located in the self-help lobby at PRMD.


The reports provided below are generated from the OZD and contain zoning sorted by Sonoma County Assessor’s Parcel Number (APN). These reports are updated as needed at the end of each month, so you should contact the PRMD Planning Information Phone to verify current zoning before making decisions.


Within these reports, both “Base Zoning” and “Combining District” (aka overlay) are listed. When indicated, a Combining District may be Biotic Habitat (BH), Scenic Resources (SR), Flood Zones (F1 or F2), etc. Combining Districts are site specific and most likely do not follow APN boundaries. It cannot be determined where on the APN the Combining District is located from these reports. For information on Combining District boundaries, please contact the PRMD Planning Information Phone.


A complete description of Zoning and Combining Districts can be found in the current zoning code regulations area of this site.


You can locate the zoning for a specific property by using the Assessor's Parcel Number (APN).


How to find zoning by APN:

The Assessors Parcel Map Book Numbers are broken down into report segments containing a range of parcel numbers. In the list below, the range for each report segment contains only the parcel number's first three digits. For example, the first item is listed as "003-029" which denotes a range of all parcel numbers containing 003-000-000 through and including 029-999-999. Click on the appropriate Assessors Parcel Map Book Number range to open the report. While viewing the report, perform a text search for the desired APN, including hyphens.
Example APN: 000-000-000

Assessors Parcel Map Book Number   File Size
003-029   877 KB
030-039   637 KB
043-047   819 KB
048-051   598 KB
052-054   796 KB
055-056   645 KB
057-060   704 KB
061-064   626 KB
066-070   756 KB
071-073   770 KB
074-077   629 KB
078-082   724 KB
083-088   672 KB
089-097   849 KB
099-104   609 KB
105-113   729 KB
114-123   683 KB
125-128   710 KB
130-135   854 KB
136-153   723 KB
155-183   569 KB

Map Book Series 003 - 183 (Complete List of all Parcels — Large File Size)

  15.1 MB

Note: Due to adopted rezone ordinances, the Complete List of all Parcels being a comprehensive
list will reflect the last update date even though not all parcels may not be effected.


Some of these documents are saved in Portable Document Format (PDF). We recommend you download Adobe® Reader®, a free software that allows you view and print PDF files.

For accessibility assistance with these documents, please contact the Sonoma County Permit and Resource Management Department (PRMD) at (707) 565-1900.
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Although every effort is made to provide complete and accurate information on this website, users are advised to contact appropriate PRMD staff before making project decisions. This may involve contacting more than one section within PRMD (e.g. Building, Plan Check, Zoning, Well & Septic, etc.), since each section implements specific codes or ordinances which may affect your project.
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Permit and Resource Management Department County of Sonoma