Contra Costa County property record for 3191 Hosie Ave, Byron, CA 94514
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2 ba · 1,284 sqft · built 1891 |
| Lot Size | 0.23 acres (10,000 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $193,500 (Oct 2007) |
| Tax Bill | $4,028 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 002-070-021-7 |
| Primary APN | 002-070-021-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 1,284 sqft Living Area |
| Gross Area | 393 sqft |
| 1st Floor Area | 393 sqft |
| Year Built | Built 1891 |
|---|---|
| Effective Year Built | Effective 1891 |
| Lot Area | 10,000 sqft (0.23 acres) |
| Street Address | 3191 HOSIE AVE |
|---|---|
| City | BYRON |
| State | CA |
| Zip | 94514-1003 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R6 |
| Legal Description | PCL MAP 17 PG 7 PCLS A & B |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1030 |
| Census Tract | 304002 |
3191 Hosie Ave is owned and occupied by two individuals who bought it in October 2007.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3191 HOSIE AVE, BYRON, CA 94514-1003 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Oct 25, 2007 · Amount on File |
| Deed Sale | Oct 25, 2007 · Amount on File |
| Prior Sale | Aug 26, 1994 · Amount on File |
| Deed Document Number | 2007299687 |
| Prior Transfer Date | Oct 18, 2007 |
| Prior Transfer Doc | 0000299687 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 3191 Hosie Ave was $4,028.
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 | $167,058 (+2%) Land $95,925 Building $71,133 | |
| 2025 | $4,028.00 | $163,784 Land $94,045 Building $69,739 |
| 2023 | $1,848.00 (-52.81%) | $157,426 Land $90,394 Building $67,032 |
| 2022 | $3,916.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3191 Hosie Ave in Zone X, an area of moderate flood risk, though there have been 7 flood claims nearby since 1980.
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 |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File 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.
Wildfire risk around 3191 Hosie Ave is moderate, ranking above 62% 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 62% of the US · lower than 62% 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: 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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