Sonoma County property record for 309 Valparaiso Ave, Cotati, CA 94931
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,280 sqft · built 1984 |
| Lot Size | 0.165 acres (7,200 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $199,500 (Jun 1991) |
| Tax Bill | $4,567 (2025) |
| Deeds & Mortgages | Jan 2026 Line of Credit Feb 2024 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 144-392-015-000 |
| Primary APN | 144-392-015-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 1,280 sqft Living Area |
| Gross Area | 1,760 sqft |
| 1st Floor Area | 1,280 sqft |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1985 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 7,200 sqft (0.165 acres) |
| Garage Type | Attached |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 144-392-015 |
|---|---|
| Street Address | 309 VALPARAISO AVE |
| City | COTATI |
| State | CA |
| Zip | 94931-4332 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYCO |
| Legal Description | 81 FM PT OF 144-392-05 PM 67 |
| Legal Subdivision | CITY COTATI |
| Legal Block | 1 |
| Legal Lot Number | 4 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 151204 |
309 Valparaiso Ave is held in a trust since February 2024.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 1083 VINE ST, HEALDSBURG, CA 95448-4830 |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Jan 7, 2026 | Deed of Trust, Mortgage · Line of Credit BANK OF MARIN |
| Feb 16, 2024 | Intrafamily Transfer, Transfer |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 13, 1991 · Amount on File |
| Deed Sale | Jun 13, 1991 · Amount on File |
| Deed Document Number | 199156135 |
| Last Transfer Date | Feb 2, 2024 |
| Transfer Doc | 0000007082 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | SONOMA CA |
| Property Address | 309 VALPARAISO AVE, COTATI, CA 94931-4332 |
| Transaction Type | Mortgage |
| Record Updated | Jan 15, 2026 |
| Title Company | SONORA TITLE, SONOMA FT TITLE |
| Name | Verified Name |
|---|---|
| Address | 114 LAKE ST, CLOVERDALE, CA 95425-3723 |
| Document Number | 0000000846 |
|---|---|
| Date | Jan 7, 2026 |
| Instrument | 2026000846 |
| Name | BANK OF MARIN |
|---|---|
| Type | Bank |
| Address | NOVATO, CA 94948 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Feb 16, 2024 |
| Property Address | 309 VALPARAISO AVE, COTATI, CA 94931-4332 |
| Document Number | 0000007082 |
| Map Reference | MB 316 PG 48 |
| Instrument Date | Feb 2, 2024 |
| Instrument | 2024007082 |
| Transaction Type | Transfer |
| Record Updated | Mar 6, 2024 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1083 VINE ST # 503, 503, HEALDSBURG, CA 95448-4830 |
The 2025 property tax bill for 309 Valparaiso Ave was $4,567.
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 | $367,018 (+2%) Land $147,172 Building $219,846 | |
| 2025 | $4,567.00 | $359,823 Land $144,287 Building $215,536 |
| 2023 | $4,352.00 (+1.82%) Homeowner's exemption | $345,852 Land $138,685 Building $207,167 |
| 2022 | $4,274.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 309 Valparaiso Ave in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
| Nearby Flood Claims | 1 (1995) |
| Most Recent Claim | Jan 1995 · Severe Winter Storms, Flooding, Landslides, Mud Flows |
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 309 Valparaiso Ave is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 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 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 679 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 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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