Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here. The official referral labels this resource subscription-only.
Subscription access and separate map charges
Map Subscriptions: Subscriptions for online access to filed maps and assessor parcel maps are also available for customers regularly needing filed or assessor maps. The charge for maps is the same by subscription but you can download the maps directly and be charged automatically. Please complete an Online Map Access Sign-Up application.
Officially linked county property-map resource. This verifies the referral and stated label; interactive layers, parcel results, legal boundaries, buildability and application eligibility are not determined here.
Official page text containing: Building Permit Process
Loading Skip to Main Content How Do I? Government Departments Services Search Back to County Home /QuickLinks.aspx Building Permit Process Online Permit Center: Getting Started Online Permit Center Building Forms and Checklists AB 2533 Submittal Checklist Residential New Checklist Fees & Payments Building Inspection Building Plan Review Permit Alterations and Extensions Accessory Dwelling Units (ADUs) Rebuilding After Fire Public Records Search Email the Building Division Temporary Certificate
Official page text containing: Online Permit Center: Getting Started
n Content How Do I? Government Departments Services Search Back to County Home /QuickLinks.aspx Building Permit Process Online Permit Center: Getting Started Online Permit Center Building Forms and Checklists AB 2533 Submittal Checklist Residential New Checklist Fees & Payments Building Inspection Building Plan Review Permit Alterations and Extensions Accessory Dwelling Units (ADUs) Rebuilding After Fire Public Records Search Email the Building Division Temporary Certificate of Occupancy Procedures Home Departme
Official property research or mapping resource linked from the permit information. Use the department to confirm jurisdiction and project requirements.
Official page text containing: Napa County Public Map
the unincorporated areas of Napa County. To determine if your property is in the unincorporated County, you can use the Napa County Public Map to look up information about your property with either the address or Assessor Parcel Number (APN). Note: building permits for properties in cities and towns are handled by those jurisdictions directly. Determine if your project requires a permit. Most work does require a permit, visit Codes (ca.gov) for new 2025 California Building Standards Codes. Step 2:
PBES Planning publishes the County of Napa zoning-map PDF link. This is the map-directory entry; the file's revision history and a parcel's current zoning are not independently established.
Planning’s document directory includes use permits, modifications, parcel/subdivision maps and other project resources. Staff can help identify the correct application; no fee amount or PDF contents are inferred.
Service area: County Planning application information. Confirm jurisdiction for the property and project; incorporated-city authority is not established by this entry. Area details & sources
Planning Documents | Napa County, CA — service-planning-application-06055
The Planning Division has a number of applications, submittal forms and informational documents to help you with your planning and development needs. If you can’t find what you’re looking for using the links below, or are not sure exactly what you need, the Planning Division staff is available to help. If you have questions about land use, zoning, allowed uses or permitting, use the informational links provided, or contact us for assistance.