Sonoma County property record for 8171 Arthur St, Cotati, CA 94931
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 912 sqft · built 1952 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,588 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 144-273-004-000 |
| Primary APN | 144-273-004-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 912 sqft Living Area |
| 1st Floor Area | 912 sqft |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1953 |
| Architectural Style | Custom Design |
| Exterior Material | Asbestos |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 7,500 sqft (0.172 acres) |
| Cooling System | HVAC |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Old Parcel Number | 144-273-004 |
|---|---|
| Street Address | 8171 ARTHUR ST |
| City | COTATI |
| State | CA |
| Zip | 94931-5222 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYCO |
| Legal Description | OFFICIAL RECS 10 PG 8 BLK 2 LOT 4 |
| Legal Subdivision | SUBDIVISION #6 OF THE COTATI RANCHO |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 151204 |
Source: Sonoma County assessment roll, as of April 13, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 8171 ARTHUR ST, COTATI, CA 94931-5222 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jan 18, 2006 |
| Transfer Doc | 0000006715 |
| Record Updated | Jun 8, 2026 |
Source: Sonoma County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Cotati City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $2,588.00 (+3.27%) Homeowner's exemption | $193,300 (+4.04%) Land $105,266 Building $88,034 |
| 2023 | $2,506.00 (+1.91%) Homeowner's exemption | $185,795 Land $101,179 Building $84,616 |
| 2022 | $2,459.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 26 policies |
| Nearby Flood Policies | 26 in force |
| Nearby Flood Claims | 1 (2012) |
| Most Recent Claim | Dec 2012 · tidal / storm surge |
Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within ember reach |
|---|
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF COTATI serves 7,290 people · EPA ID CA4910016 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 553 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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