Sonoma County property record for 503 Petersen Ln, Petaluma, CA 94952
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,126 sqft · built 1987 |
| Lot Size | 0.97 acres (42,253 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $1,743 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 021-010-037-000 |
| Primary APN | 021-010-037-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 1,126 sqft Living Area |
| 1st Floor Area | 1,126 sqft |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Architectural Style | Custom Design |
| Construction Type | Wood |
| Lot Area | 42,253 sqft (0.97 acres) |
| Cooling System | HVAC |
|---|
| Old Parcel Number | 021-010-037 |
|---|---|
| Street Address | 503 PETERSEN LN |
| City | PETALUMA |
| State | CA |
| Zip | 94952-1788 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | AR2 |
| Legal Description | 1971 FORM 21-010-30 PT TO 38 BY OR 2457-179 |
| Legal Block | 3 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 151000 |
503 Petersen Ln is owner-occupied and held in a trust since June 2014.
Source: Sonoma County records, as of September 1, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 503 PETERSEN LN, PETALUMA, CA 94952-1788 |
| Occupancy | Owner Occupied |
| 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.
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Jun 24, 2014 |
| Transfer Doc | 0000043606 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 503 Petersen Ln was $1,743 with a homeowner's exemption.
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Secondary School District | Petaluma Joint Union High School District (07 - 12) |
| Elementary School District | Wilmar Union Elementary School District (KG - 06) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $136,219 (+2%) Land $14,251 Building $121,968 | |
| 2025 | $1,743.00 Homeowner's exemption | $133,549 Land $13,972 Building $119,577 |
| 2023 | $1,660.00 (+13.54%) Homeowner's exemption | $128,366 Land $13,431 Building $114,935 |
| 2022 | $1,462.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 503 Petersen Ln in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2005.
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 (2005) |
| Most Recent Claim | Dec 2005 · Severe Storms, Flooding, Mudslides, And Landslides |
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 503 Petersen Ln is moderate, ranking above 59% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 59% of the US · lower than 64% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 106 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Starlink Satellite | 280 / 30 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Sonic Telecom, Verizon.
5G (outdoors only) and 4G LTE
Search by:
By searching, you agree to: Terms • Privacy • Disclosures