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Grading, Flood, & Storm Water Handouts/Forms/Applications

There are some duplicate CNI (Construction Inspection) and BPC (Building Plan Check) handouts due to building code changes that became effective January 1, 2008. The version including an x in the title of the form is to be used only for construction projects that were submitted prior to January 1, 2008. For example: Special Inspection and Testing Procedure, CNI-010x (Pre Jan 1 2008 Projects). For all projects submitted on or after January 1, 2008, refer to the form without an x in the title.

Document Accessibility Notice
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 Permit Sonoma (PRMD), Sonoma County at (707) 565-1900.


Please note: Although Permit Sonoma is continuously working to maintain these documents, some may not reflect the requirements of the currently adopted, triennial code cycle. Please make use of the revision date in the footer of the document as a guide to identifying the currency of a particular document.


Index of all published Permit Sonoma Handouts, Forms, and Applications listed by form number





Agricultural Building Permit Exemption


Building Permit Application (example)


Building Permit Application - Revised Information


Drainage Report Required Contents


Drainage Review Submittal Information for Flood Zone Determination


Dry Season Best Management Practices for Construction Sites


Flood Damage Electrical Circuit Megohmmeter Testing


Grading Permit Questionnaire


Grading Permit Required Application Contents


Grading Permit Required Inspections


Grading Permit Supplemental Information


Minimum Standard Site Plan


Preliminary Storm Water Mitigation Plan Worksheet


Protection of Stormwater Quality on Construction Sites


Roiling Permit Application


Standard Urban Storm Water Mitigation Plan Questionnaire


Waterway Setback Requirements

Although every effort is made to provide complete and accurate information on this website, users are advised to contact appropriate Permit Sonoma staff before making project decisions. This may involve contacting more than one section within Permit Sonoma(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