Sonoma County property record for 303 Patten St, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,750 sqft · built 1950 |
| Lot Size | 0.172 acres (7,500 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,215,000 (Sep 2020) |
| Tax Bill | $16,330 (2025) |
| Deeds & Mortgages | Nov 2022 Line of Credit Sep 2020 Sale & Mortgage + 2 more |
| Flood Zone | Zone X (moderate risk) |
| APN | 018-321-002-000 |
| Primary APN | 018-321-002-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 1,750 sqft Living Area |
| Gross Area | 2,128 sqft |
| 1st Floor Area | 1,750 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 2000 |
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 7,500 sqft (0.172 acres) |
| Garage Type | Attached |
| Garage Area | 378 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 018-321-002 |
|---|---|
| Street Address | 303 PATTEN ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-6700 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 1 |
| Census Block | 1015 |
| Census Tract | 150204 |
Source: Sonoma County records, as of September 1, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Nov 2, 2022 | Deed of Trust, Mortgage · Line of Credit BANK OF MARIN |
| Sep 18, 2020 | Grant Deed, Transfer · Conventional Mortgage WELLS FARGO BANK NA |
| Mar 12, 2019 | Grant Deed, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Mar 12, 2019 | Affidavit of Death, Transfer FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Sep 18, 2020 · Amount on Record |
| Deed Sale | Sep 18, 2020 · Amount on Record |
| Prior Sale | Mar 12, 2019 · Amount on Record |
| Deed Document Number | 202083696 |
| Prior Transfer Date | May 22, 2002 |
| Prior Transfer Doc | 0000083902 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Transaction Type | Mortgage |
| Record Updated | Nov 17, 2022 |
| Title Company | FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|---|
| Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Document Number | 0000072076 |
|---|---|
| Date | Nov 2, 2022 |
| Instrument | 2022072076 |
| Name | BANK OF MARIN |
|---|---|
| Type | Bank |
| Address | NOVATO, CA 94948 |
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Sep 18, 2020 |
| Property Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Document Number | 0000083696 |
| Instrument Date | Sep 14, 2020 |
| Instrument | 2020083696 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Title Company | FIRST AMERICAN TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $1,336.50 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Community Property with Right of Survivorship |
| Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Document Number | 0000083697 |
|---|---|
| Date | Sep 18, 2020 |
| Instrument | 2020083697 |
| Name | WELLS FARGO BANK NA |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 361 Months |
| Due | Oct 1, 2050 |
| Rate Type | Adjustable Rate |
|---|---|
| Type Change Date | Oct 1, 2027 |
| Change Frequency | Annually |
| Min Rate At Change | 2.25% |
| Max Rate At Change | 4.5% |
| Index | 1-Year LIBOR |
| Max Rate | 7.5% |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 12, 2019 |
| Property Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Document Number | 0000017067 |
| Instrument Date | Mar 8, 2019 |
| Instrument | 17067 |
| Transaction Type | Transfer |
| Record Updated | Mar 27, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Amount | Amount Recorded |
|---|---|
| Tax | $986.70 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 303 PATTEN ST SONOMA CA 954766700, SONOMA, CA 95476-6700 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 12, 2019 |
| Property Address | 303 PATTEN ST, SONOMA, CA 95476-6700 |
| Document Number | 0000017066 |
| Instrument Date | Mar 8, 2019 |
| Instrument | 17066 |
| Transaction Type | Transfer |
| Record Updated | Mar 27, 2019 |
| Title Company | FIDELITY NATIONAL TITLE, FIDELITY NATIONAL TITLE CO |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 303 PATTEN ST SONOMA CA 954766700, SONOMA, CA 95476-6700 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Sonoma City |
| Unified School District | Sonoma Valley Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,341,456 (+2%) Land $750,774 Building $590,682 | |
| 2025 | $16,330.00 (+4.31%) | $1,315,153 (+4.04%) Land $736,053 Building $579,100 |
| 2023 | $15,655.00 (+1.46%) | $1,264,086 Land $707,472 Building $556,614 |
| 2022 | $15,430.00 |
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 |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 15 policies |
| Nearby Flood Policies | 15 in force |
| Nearby Flood Claims | 8 (1978–2025) |
| Claims Outside the SFHA | 6 of 8 |
| Most Recent Claim | Feb 2025 · rainfall accumulation |
| Claims by Event |
|
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 | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 SONOMA serves 10,619 people · EPA ID CA4910012 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jul 2024 |
| Lead | Under 1 ppb (2021–2023) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 579 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 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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