Sonoma County property record for 521 Baker St, Petaluma, CA 94952
| Property Type | Triplex |
|---|---|
| Details | 2 bd · 1.5 ba · 1,136 sqft · built 1890 |
| Lot Size | 0.25 acres (10,908 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $932,000 (Nov 2024) |
| Tax Bill | $10,784 (2025) |
| Deeds & Mortgages | Mar 2022 Transfer Apr 2021 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 006-384-013-000 |
| Primary APN | 006-384-013-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Stories | 2 Stories |
| Building Area | 1,136 sqft Living Area |
| 1st Floor Area | 744 sqft |
| Year Built | Built 1890 |
|---|---|
| Effective Year Built | Effective 1947 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 10,908 sqft (0.25 acres) |
| Garage Type | Attached |
| Garage Area | 240 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 006-384-013 |
|---|---|
| Street Address | 521 BAKER ST |
| City | PETALUMA |
| State | CA |
| Zip | 94952-2522 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Local Zoning Code | CITYPE |
| Legal Description | DEEDS 271 PG 123 |
| Legal Block | 1 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 1 |
| Census Block | 1002 |
| Census Tract | 150800 |
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 | Individual Name on Record |
|---|---|
| Mailing Address | 1396 E NAPA ST, SONOMA, CA 95476-3841 |
| Owner Type | Individual |
| Vesting | Single Man |
| Date | Document |
|---|---|
| Mar 4, 2022 | Intrafamily Transfer, Transfer |
| Apr 19, 2021 | Intrafamily Transfer, Transfer |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Nov 4, 2024 · Amount on Record |
| Deed Sale | Nov 4, 2024 · Amount on Record |
| Deed Document Number | 202454693 |
| Prior Transfer Date | Feb 16, 2022 |
| Prior Transfer Doc | 0000016130 |
| Record Updated | Oct 29, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Mar 4, 2022 |
| Property Address | 521 BAKER ST, PETALUMA, CA 94952-2522 |
| Document Number | 0000016130 |
| Instrument Date | Feb 16, 2022 |
| Instrument | 2022016130 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
| Address | 604 JONAS LN, PETALUMA, CA 94952-4750 |
| Investor | Possibly a Property Investor |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | SONOMA CA |
| Recording Date | Apr 19, 2021 |
| Property Address | 521 BAKER ST, PETALUMA, CA 94952-2522 |
| Document Number | 0000048157 |
| Instrument Date | Mar 24, 2021 |
| Instrument | 2021048157 |
| Transaction Type | Transfer |
| Record Updated | Jun 7, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Revocable Trust |
| Address | 1299 MCKENZIE AVE, PETALUMA, CA 94954-3422 |
Source: Sonoma County assessment roll, as of September 1, 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 |
|---|---|---|
| 2026 | $950,640 (+2%) Land $380,460 Building $570,180 | |
| 2025 | $10,784.00 (+172.12%) | $932,000 (+165.45%) Land $373,000 Building $559,000 |
| 2023 | $3,963.00 (+0.84%) | $351,105 Land $85,367 Building $265,738 |
| 2022 | $3,930.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective February 15, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; 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 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 714 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
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