Sonoma County property record for 528 Oak St, Petaluma, CA 94952
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,562 sqft · built 1910 |
| Lot Size | 0.219 acres (9,520 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,650,000 (Jun 2025) |
| Tax Bill | $5,223 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 006-202-011-000 |
| Primary APN | 006-202-011-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 3 Rooms |
| Stories | 1 Story |
| Building Area | 1,562 sqft Living Area |
| 1st Floor Area | 1,562 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1943 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 9,520 sqft (0.219 acres) |
| Garage Type | Detached |
| Garage Area | 288 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|
| Old Parcel Number | 006-202-011 |
|---|---|
| Street Address | 528 OAK ST |
| City | PETALUMA |
| State | CA |
| Zip | 94952-2725 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYPE |
| Legal Subdivision | CHERRY HILL ADDITION |
| Legal Block | 4 |
| Legal Lot Number | 11,12 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 4 |
| Census Block | 4007 |
| Census Tract | 150902 |
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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 528 OAK ST, PETALUMA, CA 94952-2725 |
| Owner Type | Company |
| Vesting | Life Tenant |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jun 3, 2025 · Amount on Record |
| Deed Sale | Jun 3, 2025 · Amount on Record |
| Prior Sale | Feb 27, 1998 · Amount on Record |
| Deed Document Number | 202525301 |
| Prior Transfer Date | Oct 29, 2003 |
| Prior Transfer Doc | 0000228380 |
| Record Updated | Jun 8, 2026 |
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 | $5,223.00 (+10.47%) Homeowner's exemption | $448,619 (+4.04%) Land $191,601 Building $257,018 |
| 2023 | $4,728.00 (+0.9%) Homeowner's exemption | $431,201 Land $184,162 Building $247,039 |
| 2022 | $4,686.00 |
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 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Claims | 1 (1982) |
| Most Recent Claim | Jan 1982 · Severe Storms, Flood, Mudslides & High Tide |
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 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 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 752 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 |
May also be available: T-Mobile.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures