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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 Resources (BR), 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 either the APN or street address.

How to find zoning by APN:

Click on the Assessors Parcel Map Book Number range to open the report. Perform a search (using the toolbar button which looks like a pair of binoculars) for the APN, including hyphens.
Example APN: 000-000-000

How to find zoning by Address:

To perform any other search within the database, you must download and open the complete document available at the bottom of this page. This is only recommended for those with a DSL, cable or T1 connection. Once you download the document, perform a search (using the toolbar button which looks like a pair of binoculars). Type in the street number and/or name. Do not include the street type (Road, Avenue, etc.).
Example Address:
100 Main

Acrobat Document These documents are saved in Adobe Acrobat format.
Visit our download page for a free copy of Acrobat Reader

Assessors Parcel Map Book Number   File Size
003-029   305 kb
030-039   252 kb
043-047   351 kb
048-051   208 kb
052-054   304 kb
055-056   264 kb
057-060   273 kb
061-064   214 kb
066-070   258 kb
071-073   259 kb
074-077   218 kb
078-082   249 kb
083-088   236 kb
089-097   270 kb
099-104   209 kb
105-113   258 kb
114-123   240 kb
125-128   244 kb
130-135   300 kb
136-153   250 kb
155-183   196 kb

Complete List of all Parcels (Large File Size)
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. Please refer to "Current As Of" column above.

  4.8 MB




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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