Sonoma County property record for 358 Patten St, Sonoma, CA 95476
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 2,952 sqft · built 1952 |
| Lot Size | 0.2 acres (8,726 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $4,795 (2025) |
| Deeds & Mortgages | Jul 2026 Line of Credit Feb 2017 Loan Modification |
| Flood Zone | Zone X (moderate risk) |
| APN | 018-271-046-000 |
| Primary APN | 018-271-046-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 4 Rooms |
| Stories | 2 Stories |
| Building Area | 2,952 sqft Living Area |
| Gross Area | 3,904 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1952 |
|---|---|
| Effective Year Built | Effective 1973 |
| Architectural Style | L-Shape |
| Lot Area | 8,726 sqft (0.2 acres) |
| Garage Type | Attached |
| Garage Area | 952 sqft |
| Parking Spaces | 4 Parking Spaces |
| Old Parcel Number | 018-271-046 |
|---|---|
| Street Address | 358 PATTEN ST |
| City | SONOMA |
| State | CA |
| Zip | 95476-6732 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 2015 FM 018-271-043 & PTN 042 LLA CITY OF SONOMA |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | SONOMA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 150204 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Sonoma Plaza listed 1975 · 31 contributing resources · National Historic Landmark (designated 1960) · NRIS 75000489 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
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 | Company Name on Record |
|---|---|
| Mailing Address | 358 PATTEN ST, SONOMA, CA 95476-6732 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Jul 10, 2026 | Deed of Trust, Mortgage · Line of Credit REDWOOD CREDIT UNION |
| Feb 1, 2017 | Loan Modification, Mortgage · Conventional Mortgage UMPQUA BK |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Apr 1, 2011 |
| Transfer Doc | 0000030836 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jul 10, 2026 |
| Property Address | 358 PATTEN ST, SONOMA, CA 95476-6732 |
| Document Number | 0000035067 |
| Instrument Date | Jul 3, 2026 |
| Instrument | 202635067 |
| Transaction Type | Mortgage |
| Record Updated | Jul 17, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Trust, 212 |
| Address | 358 PATTEN ST, SONOMA, CA 95476-6732 |
| Document Number | 0000035067, |
|---|---|
| Date | Jul 10, 2026 |
| Instrument | 202635067 |
| Name | REDWOOD CREDIT UNION |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Term | 300 Months |
| Due | Jul 15, 2051 |
| Rate | 6.48% |
|---|---|
| Max Rate | -1% |
| Document Type | Loan Modification |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 358 PATTEN ST, SONOMA, CA 95476-6732 |
| Document Number | 0000010299 |
| Instrument Date | Feb 1, 2017 |
| Transaction Type | Mortgage |
| Record Updated | Feb 22, 2017 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 358 PATTEN ST SONOMA CA 954766732, SONOMA, CA 95476-6732 |
| Document Number | 0000010299 |
|---|---|
| Date | Feb 8, 2017 |
| Instrument | 10299 |
| Name | UMPQUA BK |
|---|---|
| Type | Bank |
| Address | SONOMA, CA 95476 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $237,721 (+2%) Land $59,352 Building $178,369 | |
| 2025 | $4,795.00 (+6.86%) Homeowner's exemption | $233,061 (+4.04%) Land $58,189 Building $174,872 |
| 2023 | $4,487.00 (+2.94%) Homeowner's exemption | $224,014 Land $55,931 Building $168,083 |
| 2022 | $4,359.00 |
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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