Sonoma County property record for 537 Lassen Ct, Rohnert Park, CA 94928
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,344 sqft · built 1973 |
| Lot Size | 0.198 acres (8,627 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $1,973 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 046-540-051-000 |
| Primary APN | 046-540-051-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 1,344 sqft Living Area |
| 1st Floor Area | 1,344 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1973 |
|---|---|
| Effective Year Built | Effective 1974 |
| Architectural Style | Custom Design |
| Exterior Material | Wood Siding |
| Construction Type | Wood |
| Lot Area | 8,627 sqft (0.198 acres) |
| Garage Area | 456 sqft |
| Cooling System | HVAC |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Old Parcel Number | 046-540-051 |
|---|---|
| Street Address | 537 LASSEN CT |
| City | ROHNERT PARK |
| State | CA |
| Zip | 94928-4678 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | CITYRP |
| Legal Description | HOLIDAY PARK 4 LOT 21 |
| Legal Subdivision | HOLIDAY PARK |
| Legal Block | 2 |
| Legal Lot Number | 21 |
| Jurisdiction | SONOMA CA |
| Township / Civil Division | PETALUMA |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 151203 |
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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 537 LASSEN CT, ROHNERT PARK, CA 94928-4678 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
Source: Sonoma County assessment roll, as of September 1, 2026
| Type | Name |
|---|---|
| State | California |
| County | Sonoma County |
| Municipality | Rohnert Park City |
| Unified School District | Cotati-Rohnert Park Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $169,844 (+2%) Land $43,022 Building $126,822 | |
| 2025 | $1,973.00 (+2.92%) Homeowner's exemption | $166,515 (+4.04%) Land $42,179 Building $124,336 |
| 2023 | $1,917.00 (+1.75%) Homeowner's exemption | $160,051 Land $40,542 Building $119,509 |
| 2022 | $1,884.00 |
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 10 (0% premium discount) |
| Nearby Flood Policies | 1 in force |
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 65% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.09% 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 ROHNERT PARK serves 43,821 people · EPA ID CA4910014 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2025 |
| Lead | Under 1 ppb (2023–2025) 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 348 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 Fixed Wireless · DSL | 100 / 20 |
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