Contra Costa County property record for 3140 Hemlock St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,058 sqft · built 1977 |
| Lot Size | 0.072 acres (3,120 sqft) |
| Owner | Individual Name on File |
| Last Sale | $315,000 (Aug 2016) |
| Tax Bill | $4,578 (2025) |
| Deeds & Mortgages | Mar 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 076-421-044-9 |
| Primary APN | 076-421-044-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 1,058 sqft Living Area |
| 1st Floor Area | 1,058 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1993 |
| Lot Area | 3,120 sqft (0.072 acres) |
| Garage Type | Attached |
| Garage Area | 439 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 3140 HEMLOCK ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-5212 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | TR 4252 LOT 245 EX MR&FEE BLW 500FT |
| Legal Subdivision | SUBDIVISION #4252 |
| Legal Tract | 4252 |
| Legal Lot Number | 245 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 307205 |
3140 Hemlock St is owned and occupied by an individual who bought it in August 2016.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 3140 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | Aug 30, 2016 · Amount on File |
| Deed Sale | Aug 30, 2016 · Amount on File |
| Prior Sale | Mar 23, 2009 · Amount on File |
| Deed Document Number | 2016175905 |
| Prior Transfer Date | Mar 17, 2009 |
| Prior Transfer Doc | 0000059910 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3140 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE |
| Name | Verified Name |
|---|---|
| Address | 3140 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Document Number | 0000068396 |
|---|---|
| Date | Mar 5, 2021 |
| Instrument | 2021-068396 |
| Name | HOME FUNDING CORP |
|---|---|
| Type | Mortgage Company |
| Address | RANCHO CUCAMONGA, CA 91730 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Apr 1, 2051 |
The 2025 property tax bill for 3140 Hemlock St was $4,578 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $372,890 (+2%) Land $221,603 Building $151,287 | |
| 2025 | $4,578.00 Homeowner's exemption | $365,579 Land $217,258 Building $148,321 |
| 2023 | $4,422.00 (+1.56%) | $351,385 Land $208,823 Building $142,562 |
| 2022 | $4,354.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3140 Hemlock St in Zone X, an area of minimal flood risk.
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 minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
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 3140 Hemlock St is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | CITY OF ANTIOCH serves 116,781 people · EPA ID CA0710001 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| Lead | Under 1 ppb (2022–2024) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None last 3 years |
Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.
Source: FCC Broadband Data Collection, based on 342 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: T-Mobile, Verizon.
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