Sonoma County Block and Lot (California)

The Recorder of Deeds ensures the accuracy of Sonoma County property, land, and property tax records for the Sonoma County, California government. As part of this job, they keep real estate documents including information on Sonoma County block and lot divisions. Sonoma County Recorders provide online access to a searchable block and lot database that can identify the parcel number of any Sonoma County property by its address. Block and lot information, which covers both urban and suburban areas, can show subdivided lots, lot identifiers, and the tracts of land Sonoma County, CA. The Registrar of Deeds may also provide Sonoma County plat maps and property maps that show block and lot information.

Sonoma County Recorder's Office Santa Rosa CA 585 Fiscal Drive 95403 707-565-2651


The Building Department is responsible for creating and enforcing Sonoma County building codes and zoning regulations in order to ensure the construction of safe buildings. As part of that job, Sonoma County Building Departments maintain a number of property-related records, including documents on block and lot information. These records can include plat maps, property maps, and Sonoma County block and lot databases, and they provide parcel numbers, subdivisions within a lot, lot identifiers, and tracts of land. Building Departments in Sonoma County, California may provide access to an online, searchable database to identify blocks, lots, and parcel numbers for properties, which can also show zoning boundaries.

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, Ste 3 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, Ste 210 95403 707-565-6680

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

The Sonoma County Clerk Office stores important public records for the Sonoma County local government, including records related to Sonoma County property such as block and lot information. These records can include plat maps, property maps, and block and lot databases, and they show parcel numbers, subdivisions within a lot, tracts of land, and lot identifiers in Sonoma County, CA. They may also include other descriptions of the property for both urban and suburban areas. Clerk Offices in Sonoma County provide online tools to look up the block and lot information for any property by its address.

Petaluma City Clerk Petaluma CA 11 English Street 94952 707-778-4360

Rohnert Park City Clerk Rohnert Park CA 130 Avram Avenue 94928 707-588-2227

Santa Rosa City Clerk Santa Rosa CA 100 Santa Rosa Avenue 95404 707-543-3016

Santa Rosa County Clerk Santa Rosa CA 3200 County Center Drive 95403 707-565-3700

Sonoma County Clerk Santa Rosa CA 2300 County Center Drive 95403 707-565-3800

Windsor Town Clerk Windsor CA 9291 Old Redwood Highway, Ste 400 95492 707-838-5311


The Assessor Office determines the value of taxable property within a Sonoma County or local area. These property assessments are used to calculate property taxes in Sonoma County, California. Assessors keep detailed information on Sonoma County block and lot divisions, and many provide an online, searchable database to identify blocks, lots, and parcel numbers for properties by address. Urban and suburban block and lot information includes parcel numbers, subdivisions in a lot, and all tracts of land in the area. Assessor Offices may also have Sonoma County property maps known as plat maps that show block and lot information.

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