Contra Costa County property record for 4040 Holway Dr, Byron, CA 94514
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 2 ba · 1,938 sqft · built 1880 |
| Lot Size | 0.263 acres (11,456 sqft) |
| Owner | Company Name on File |
| Last Sale | $300,000 (Sep 2005) |
| Tax Bill | $8,263 (2025) |
| Deeds & Mortgages | Aug 2019 Mortgage |
| Flood Zone | Zone X (moderate risk) |
| APN | 002-122-013-2 |
| Primary APN | 002-122-013-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 1,938 sqft Living Area |
| 1st Floor Area | 1,266 sqft |
| 2nd Floor Area | 672 sqft |
| Year Built | Built 1880 |
|---|---|
| Effective Year Built | Effective 1946 |
| Lot Area | 11,456 sqft (0.263 acres) |
| Garage Type | Attached |
| Garage Area | 168 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 4040 HOLWAY DR |
|---|---|
| City | BYRON |
| State | CA |
| Zip | 94514-1002 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | A2 |
| Legal Description | POR SEC 9 T1S R3E |
| Legal Range | 03E |
| Legal Township | 01S |
| Legal Section | 09 |
| Legal Subdivision | LAS LOMITAS SUB |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1025 |
| Census Tract | 304002 |
Source: Contra Costa County records · APN 002-122-013-2
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 236, BYRON, CA 94514-0236 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Sep 30, 2005 · Amount on Record |
| Deed Sale | Sep 30, 2005 · Amount on Record |
| Deed Document Number | 2005373703 |
| Last Transfer Date | Jun 12, 2014 |
| Transfer Doc | 0000101994 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4040 HOLWAY DR, BYRON, CA 94514-1002 |
| Document Number | 0000139310 |
| Instrument Date | Aug 23, 2019 |
| Transaction Type | Mortgage |
| Record Updated | Sep 09, 2019 |
| Title Company | OLD REPUBLIC TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Community Property |
| Address | 141 LOMITAS DR DANVILLE CA 945262848, DANVILLE, CA 94526-2848 |
| Document Number | 0000139310 |
|---|---|
| Date | Aug 28, 2019 |
| Instrument | 139310 |
| Name | UNITED WHOLESALE MTG |
|---|---|
| Type | Mortgage Company |
| Address | PONTIAC, MI 48341 |
| Amount | Amount Recorded |
|---|---|
| Term | 360 Months |
| Due | Aug 27, 2049 |
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 | Byron Union 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 | $662,089 (+2%) Land $453,012 Building $209,077 | |
| 2025 | $8,263.00 (+20.1%) | $649,108 (+4.04%) Land $444,130 Building $204,978 |
| 2023 | $6,880.00 (-12.02%) | $623,904 Land $426,885 Building $197,019 |
| 2022 | $7,820.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 |
|
| Wildfire Risk | High above 77% of the US · above 53% of California |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
Based on FCC filings for 114 locations within half a mile of this property.
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