Contra Costa County property record for 4150 Knightsen Ave, Oakley, CA 94561
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,696 sqft · built 1972 |
| Lot Size | 0.9 acres (39,204 sqft) |
| Owner | 2 Company Names on Record |
| Tax Bill | $927 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 032-030-012-2 |
| Primary APN | 032-030-012-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,696 sqft Living Area |
| 1st Floor Area | 1,696 sqft |
| Year Built | Built 1972 |
|---|---|
| Effective Year Built | Effective 1974 |
| Lot Area | 39,204 sqft (0.9 acres) |
| Garage Type | Attached |
| Garage Area | 624 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4150 KNIGHTSEN AVE |
|---|---|
| City | OAKLEY |
| State | CA |
| Zip | 94561-3611 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A2 |
| Legal Description | PARCEL MAP 18 PG 47 PCL B EX MR |
| Legal Tract | 18PM47 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2007 |
| Census Tract | 302011 |
Source: Contra Costa County records, as of July 14, 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 | PO BOX 367, KNIGHTSEN, CA 94548-0367 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Apr 5, 1996 |
| Transfer Doc | 0000062514 |
| Record Updated | Oct 29, 2026 |
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 | $77,182 (+2%) Land $15,603 Building $61,579 | |
| 2025 | $927.00 (+2.89%) | $75,670 (+4.04%) Land $15,298 Building $60,372 |
| 2023 | $901.00 (+0.9%) | $72,734 Land $14,705 Building $58,029 |
| 2022 | $893.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 61% of the US · lower than 62% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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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