Contra Costa County property record for 3978 Main St, Byron, CA 94514
| Property Type | Commercial Vacant Land |
|---|---|
| Details | 7,104 sqft · built 1929 |
| Lot Size | 0.28 acres (12,190 sqft) |
| Owner | Company Name on Record |
| Last Sale | $247,000 (Feb 1999) |
| Tax Bill | $1,432 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 002-102-016-9 |
| Primary APN | 002-102-016-9 |
|---|---|
| Alternative APN |
|
| Lot Area | 12,190 sqft (0.28 acres) |
|---|
| Street Address | 3978 MAIN ST |
|---|---|
| City | BYRON |
| State | CA |
| Zip | 94514-1006 |
| Property Category | Commercial |
| Property Type | Vacant Land > Commercial |
| Local Zoning Code | RB |
| Legal Description | POR SEC 3 T1S R3E |
| Legal Range | 03E |
| Legal Township | 01S |
| Legal Section | 03 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1084 |
| Census Tract | 304002 |
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 | Company Name on Record |
|---|---|
| Mailing Address | 1432 MARTIN LUTHER KING JR WAY, OAKLAND, CA 94612-1213 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Feb 1, 1999 · Amount on Record |
| Deed Sale | Feb 1, 1999 · Amount on Record |
| Deed Document Number | 199926728 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Elementary School District | Byron Union Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $128,541 (+2%) Land $128,541 | |
| 2025 | $1,432.00 (+4.75%) | $126,021 (+4.04%) Land $126,021 |
| 2023 | $1,367.00 (+1.56%) | $121,128 Land $121,128 |
| 2022 | $1,346.00 |
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.
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record median of 22 policies |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 22 in force |
| Nearby Flood Claims | 7 (1980–2023) |
| Claims Outside the SFHA | 2 of 7 |
| Most Recent Claim | Mar 2023 · rainfall accumulation |
| Claims by Event |
|
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 68% of the US · above 43% of California |
|---|---|
| Wildfire Likelihood | 0.3% 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 114 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 |
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