Sonoma County Building Departments

Search for Sonoma County CA building and zoning records. Building records include building plans, building code evaluations, building surveys, and building code violations, and zoning records include zoning violations, zoning boundaries, and zoning regulations.


Building Departments develop and enforce building codes to ensure the construction of safe buildings. The Building Department maintains building and zoning records, including design plans for construction and renovation projects, records on the current structures on any parcel, maps showing property lines, and permits issued by the department. They also keep records on a property's compliance with building codes, including building and zoning violations, as well as records of inspection reports. Many Building Departments provide online access to building records.

Cloverdale Planning Department Cloverdale CA 126 North Cloverdale Boulevard 95425 707-894-1701

Cotati Building Department Cotati CA 201 West Sierra Avenue 94931 707-665-3632

Healdsburg Building Department, Planning, Zoning and Permits Healdsburg CA 435 Allan Court 95448 707-431-3346

Petaluma City Building Department Petaluma CA 11 English Street 94952 707-778-4302

Petaluma City Zoning and Permits Petaluma CA 11 English St 94952 707-778-4301

Rohnert Park Building Department Rohnert Park CA 130 Avram Avenue 94928 707-588-2239

Rohnert Park City Planning Department Rohnert Park CA 130 Avram Avenue 94928 707-588-2236

Santa Rosa Planning Department Santa Rosa CA 100 Santa Rosa Avenue 95404 707-543-3265

Sebastopol Planning Department Sebastopol CA 714 Johnson Street 95472 707-823-6167

Sonoma County Permits Santa Rosa CA 2550 Ventura Avenue 95403 707-565-1900

Sonoma County Planning Department Santa Rosa CA 475 Aviation Boulevard 95403 707-565-6680

Windsor Planning and Zoning Department Windsor CA 9291 Old Redwood Highway 95492 707-838-1021


Building Inspectors ensure that building construction is in compliance with building and zoning codes. They maintain documents on permits issued by the Building Department, including construction, relocation, demolition, and occupancy permits. Building Inspectors also keep approved and rejected building plans and blueprints, records on a property's compliance with building codes, and records on building and zoning violations and inspection reports. Many Building Inspectors make these building and zoning records available to the public online.

Cotati Building Inspector Cotati CA 201 West Sierra Avenue 94931 707-665-3632

Sebastopol Building Inspector Sebastopol CA 7425 Bodega Avenue 95472 707-823-8597


Assessors evaluate the value of properties and parcels in order to determine property taxes. The Assessor's Office maintains current data on every property in the district, including inventories of parcels and structures, zoning boundaries, and the value of all the property in the jurisdiction. Assessors may also keep building and zoning records, such as reports from on-site inspections, maps of property lines and zones, and value assessments for building improvements. Many Assessor's Offices provide online access to their records, including documents on building and zoning.

Sonoma County Assessor's Office Santa Rosa CA 585 Fiscal Drive 95403 707-565-1888


Treasurers and Tax Collectors are responsible for the collection of property tax revenue. The Office of the Treasurer and Tax Collector maintains and updates records on every parcel in the district, as well as maintaining certain building and zoning records. These records include building valuations, zoning boundaries, and building construction. Treasurers and Tax Collectors also keep documents on property taxes, including property tax assessments, defaults on property taxes, and tax liens. The office may also maintain information on property auctions and a property's prior liens or foreclosures. Many Treasurers and Tax Collectors provide online databases to access their records, including documents on building and zoning.

Sonoma County Treasurer-Tax Collector's Office Santa Rosa CA 585 Fiscal Drive 95403 707-565-2281