Contra Costa County property record for 3261 Knightsen Ave, Knightsen, CA 94548
| Property Type | Mobile Home |
|---|---|
| Details | 2 bd · 1.5 ba · 960 sqft · built 1988 |
| Lot Size | 1.01 acres (44,122 sqft) |
| Owner | Individual Name on File |
| Last Sale | $268,533 (Sep 2009) |
| Tax Bill | $169 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 702-006-001-3 |
| Primary APN | 702-006-001-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 6 Rooms |
| Building Area | 960 sqft Living Area |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Mobile Home |
| Lot Area | 44,122 sqft |
| Heating System | Central |
|---|
| Street Address | 3261 KNIGHTSEN AVE |
|---|---|
| City | KNIGHTSEN |
| State | CA |
| Zip | 94548 |
| Property Category | Residential |
| Property Type | Residential > Prefabricated > Mobile Home |
| Legal Description | 020-062-012-8 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2016 |
| Census Tract | 302011 |
3261 Knightsen Ave, a mobile home, is owned by an individual who bought it in September 2009.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 277, KNIGHTSEN, CA 94548-0277 |
| Owner Type | Individual |
| Vesting | Single Person |
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 Sale | Sep 23, 2009 · Amount on File |
| Deed Sale | Sep 23, 2009 · Amount on File |
| Prior Sale | Dec 4, 2006 · Amount on File |
| Deed Document Number | 2009225086 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3261 Knightsen Ave was $169.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Elementary School District | Knightsen Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $16,316 (+1.99%) Building $16,316 | |
| 2025 | $169.00 | $15,997 Building $15,997 |
| 2023 | $163.00 (+1.88%) | $15,377 Building $15,377 |
| 2022 | $160.00 |
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.
FEMA maps place 3261 Knightsen Ave in Zone X, an area of minimal flood risk, though there have been 2 flood claims nearby since 2017.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 6 (20% premium discount) |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 2 (2017–2022) |
| Most Recent Claim | Dec 2022 · Severe Winter Storms, Flooding, Landslides, And Mudslides |
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 3261 Knightsen Ave is moderate, ranking above 61% 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 61% of the US · lower than 63% 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: EPA Safe Drinking Water Information System, as of September 2026
| Water System | KNIGHTSEN COMMUNITY WATER SYSTEM serves 73 people · EPA ID CA0707547 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2025 |
| Lead | 1 ppb (2020–2022) 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 30 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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