Sonoma County property record for 813 Richardson Ln, Cotati, CA 94931
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 2,225 sqft · built 1980 |
| Lot Size | 1.25 acres (54,885 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $471,500 (Dec 2011) |
| Tax Bill | $6,940 (2025) |
| Deeds & Mortgages | Jul 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 144-120-016-000 |
| Primary APN | 144-120-016-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 1 Story |
| Building Area | 2,225 sqft Living Area |
| 1st Floor Area | 2,225 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Tile |
| Lot Area | 54,885 sqft |
| Garage Type | Detached |
| Garage Area | 524 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Septic |
| Water Source | Commercial |
| Old Parcel Number | 144-120-016 |
|---|---|
| Street Address | 813 RICHARDSON LN |
| City | COTATI |
| State | CA |
| Zip | 94931-4115 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYCO |
| Legal Description | 1973 FORM PT OF 144-120-11 PM 15 LOT 4 |
| Legal Subdivision | COTATI PRCL MAP 15 |
| Legal Block | 2 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 2 |
| Census Block | 2002 |
| Census Tract | 151206 |
813 Richardson Ln is owned and occupied by two individuals who bought it in December 2011.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 813 RICHARDSON LN, COTATI, CA 94931-4115 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 16, 2011 · Amount on File |
| Deed Sale | Dec 16, 2011 · Amount on File |
| Prior Sale | Sep 27, 2011 · Amount on File |
| Deed Document Number | 2011112068 |
| Prior Transfer Date | Sep 19, 2011 |
| Prior Transfer Doc | 0000082261 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 813 RICHARDSON LN, COTATI, CA 94931-4115 |
| Document Number | 0000060453 |
| Instrument Date | Jul 15, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Aug 12, 2020 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 813 RICHARDSON LN COTATI CA 949314115, COTATI, CA 94931-4115 |
| Document Number | 0000060453 |
|---|---|
| Date | Jul 22, 2020 |
| Instrument | 60453 |
| Name | REDWOOD CU |
|---|---|
| Type | Credit Union |
| Address | SANTA ROSA, CA 95403 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 360 Months |
| Due | Jul 21, 2050 |
The 2025 property tax bill for 813 Richardson Ln was $6,940 with a homeowner's exemption.
Source: Sonoma County assessment roll, as of September 1, 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 |
|---|---|---|
| 2026 | $585,870 (+2%) Land $256,230 Building $329,640 | |
| 2025 | $6,940.00 Homeowner's exemption | $574,383 Land $251,206 Building $323,177 |
| 2023 | $6,737.00 (+1.8%) Homeowner's exemption | $552,081 Land $241,452 Building $310,629 |
| 2022 | $6,618.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 813 Richardson Ln in Zone X, an area of moderate flood risk.
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 |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
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.
Wildfire risk around 813 Richardson Ln is moderate, ranking above 47% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 47% of the US · lower than 72% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
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 154 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 Fixed Wireless | 100 / 20 |
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