Contra Costa County property record for 3515 Camino Diablo, Byron, CA 94514
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,170 sqft · built 1909 |
| Lot Size | 0.79 acres (34,412 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $400,000 (Jan 2004) |
| Tax Bill | $7,310 (2025) |
| Deeds & Mortgages | Apr 2020 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 002-040-049-5 |
| Primary APN | 002-040-049-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,170 sqft Living Area |
| 1st Floor Area | 1,170 sqft |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1959 |
| Lot Area | 34,412 sqft (0.79 acres) |
| Street Address | 3515 CAMINO DIABLO |
|---|---|
| City | BYRON |
| State | CA |
| Zip | 94514-0076 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A2 |
| 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 | 1030 |
| 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 | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3515 CAMINO DIABLO, BYRON, CA 94514-0076 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 2, 2004 · Amount on Record |
| Deed Sale | Jan 2, 2004 · Amount on Record |
| Prior Sale | Dec 27, 1999 · Amount on Record |
| Deed Document Number | 2004284 |
| Prior Transfer Date | Mar 8, 1994 |
| Prior Transfer Doc | 0000106708 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3515 CAMINO DIABLO, BYRON, CA 94514-0076 |
| Document Number | 0000077284 |
| Instrument Date | Apr 16, 2020 |
| Transaction Type | Mortgage |
| Record Updated | May 21, 2020 |
| Title Company | FIDELITY NATIONAL TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 3515 CAMINO DIABLO BYRON CA 945140076, BYRON, CA 94514-0076 |
| Document Number | 0000077284 |
|---|---|
| Date | Apr 23, 2020 |
| Instrument | 77284 |
| Name | UNCLE CU |
|---|---|
| Type | Credit Union |
| Address | LIVERMORE, CA 94551 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 22, 2050 |
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 | $580,068 (+2%) Land $290,034 Building $290,034 | |
| 2025 | $7,310.00 (+22.45%) Homeowner's exemption | $568,696 (+4.04%) Land $284,348 Building $284,348 |
| 2023 | $5,970.00 (-13.77%) Homeowner's exemption | $546,614 Land $273,307 Building $273,307 |
| 2022 | $6,923.00 |
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 moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| 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 | High above 80% of the US · above 58% of California |
|---|---|
| Wildfire Likelihood | 0.6% 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 39 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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