Contra Costa County property record for 3786 Knightsen Ave, Knightsen, CA 94548 · Last verified July 2026
| Property Type | Rural Home |
|---|---|
| Details | 1,335 sqft · built 1933 |
| Lot Size | 1.13 acres (49,658 sqft) |
| Owner | Company Name on File |
| Tax Bill | $590 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 020-020-011-1 |
| Primary APN | 020-020-011-1 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 1,335 sqft Living Area |
| 1st Floor Area | 1,335 sqft |
| Year Built | Built 1933 |
|---|---|
| Effective Year Built | Effective 1933 |
| Lot Area | 49,658 sqft |
| Street Address | 3786 KNIGHTSEN AVE |
|---|---|
| City | KNIGHTSEN |
| State | CA |
| Zip | 94548 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | PARCEL MAP 5 PG 50 PCL A EX MR |
| Legal Tract | 5PM50 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2005 |
| Census Tract | 302011 |
Source: Contra Costa County records · APN 020-020-011-1
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 214, KNIGHTSEN, CA 94548-0214 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Sep 18, 2012 |
| Transfer Doc | 0000241629 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 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) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $53,189 (+2%) Land $17,459 Building $35,730 | |
| 2025 | $590.00 (+3.33%) Homeowner's exemption | $52,147 (+4.04%) Land $17,117 Building $35,030 |
| 2023 | $571.00 (+1.78%) Homeowner's exemption | $50,124 Land $16,453 Building $33,671 |
| 2022 | $561.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133020112, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| 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, rainfall accumulation, Severe Winter Storms, Flooding, Landslides, And Mudslides |
| Wildfire Risk | Moderate above 60% of the US · above 36% of California |
|---|---|
| Wildfire Likelihood | About 1 in 641 per year |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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: FCC Broadband Data Collection, availability as of December 31, 2025 · Published October 2026 · based on 28 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 1,200 / 35 |
| Unwired | Fixed Wireless | 300 / 25 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
Availability varies by address; speeds are provider-advertised maximums, not measured.
5G and 4G LTE
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