Sonoma County property record for 309 4th St, Petaluma, CA 94952
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1.5 ba · 958 sqft · built 1880 |
| Lot Size | 0.097 acres (4,224 sqft) |
| Owner | Individual Name on Record |
| Tax Bill | $8,818 (2025) |
| Deeds & Mortgages | Jan 2021 Transfer Dec 2019 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 008-113-010-000 |
| Primary APN | 008-113-010-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 958 sqft Living Area |
| 1st Floor Area | 958 sqft |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Custom Design |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 4,224 sqft (0.097 acres) |
| Garage Type | Detached |
| Garage Area | 320 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 309 4TH ST |
|---|---|
| City | PETALUMA |
| State | CA |
| Zip | 94952-4202 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYPE |
| Legal Block | 3 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 3 |
| Census Block | 3031 |
| Census Tract | 150701 |
Source: Sonoma County records, 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 Record |
|---|---|
| Mailing Address | PO BOX 602, PENNGROVE, CA 94951-0602 |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Jan 14, 2021 | Intrafamily Transfer, Transfer |
| Dec 20, 2019 | Affidavit of Death, Transfer ATTORNEY ONLY |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jan 11, 2021 |
| Transfer Doc | 0000004436 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Jan 14, 2021 |
| Property Address | 309 4TH ST, PETALUMA, CA 94952-4202 |
| Document Number | 0000004436 |
| Instrument Date | Jan 11, 2021 |
| Instrument | 2021004436 |
| Transaction Type | Transfer |
| Record Updated | Aug 19, 2021 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 309 4TH ST, PETALUMA, CA 94952-4202 |
| Document Type | Affidavit of Death |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Dec 20, 2019 |
| Property Address | 309 4TH ST, PETALUMA, CA 94952-4202 |
| Document Number | 0000097042 |
| Instrument Date | Dec 19, 2019 |
| Instrument | 97042 |
| Transaction Type | Transfer |
| Record Updated | Mar 26, 2020 |
| Title Company | ATTORNEY ONLY |
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 309 4TH ST PETALUMA CA 949524202, PETALUMA, CA 94952-4202 |
Source: Sonoma County assessment roll, as of April 13, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Petaluma City |
| Elementary School District | Petaluma City Elementary School District (KG - 06) |
| Secondary School District | Petaluma Joint Union High School District (07 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $8,818.00 (+810.01%) | $760,000 (+815.53%) Land $400,000 Building $360,000 |
| 2023 | $969.00 (+0.94%) Homeowner's exemption | $83,012 Land $29,072 Building $53,940 |
| 2022 | $960.00 |
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 minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 43 units insured incl. 37 condo units |
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 96% of the US · lower than 97.4% 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 PETALUMA serves 61,427 people · EPA ID CA4910006 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 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 | 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 432 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| 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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