Contra Costa County property record for 4306 Knightsen Ave, Oakley, CA 94561
| Property Type | Rural Home |
|---|---|
| Lot Size | 2.5 acres (108,900 sqft) |
| Owner | Individual Name on File |
| Last Sale | $150,000 (Aug 2014) |
| Tax Bill | $2,839 (2025) |
| Flood Zone | Zone A (high risk) |
| APN | 032-040-060-9 |
| Primary APN | 032-040-060-9 |
|---|---|
| Alternative APN |
|
| Lot Area | 108,900 sqft |
|---|
| Street Address | 4306 KNIGHTSEN AVE |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3608 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | POR SEC 29 T2N R3E |
| Legal Range | 03E |
| Legal Township | 02N |
| Legal Section | 29 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 302011 |
4306 Knightsen Ave, a rural home, is owned by an individual who bought it in August 2014.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 1297, OAKLEY, CA 94561-1297 |
| Owner Type | Individual |
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 | Aug 20, 2014 · Amount on File |
| Deed Sale | Aug 20, 2014 · Amount on File |
| Deed Document Number | 2014139752 |
| Prior Transfer Date | Jun 6, 2013 |
| Prior Transfer Doc | 0000143652 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4306 Knightsen Ave was $2,839.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Elementary School District | Oakley Union Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $262,277 (+2%) Land $205,688 Building $56,589 | |
| 2025 | $2,839.00 | $257,135 Land $201,655 Building $55,480 |
| 2023 | $2,751.00 (+7.84%) | $247,152 Land $193,825 Building $53,327 |
| 2022 | $2,551.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4306 Knightsen Ave in Zone A, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone A high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | Not determined for this zone |
| Flood Insurance Requirement | Required federally backed loans |
| 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 4306 Knightsen Ave is high, ranking above 73% of the US, with a 0.4% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | High above 73% of the US · above 48% of California |
|---|---|
| Wildfire Likelihood | 0.4% 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 142 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T.
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