Contra Costa County property record for 3136 Hemlock St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,256 sqft · built 1977 |
| Lot Size | 0.072 acres (3,120 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $530,000 (Dec 2022) |
| Tax Bill | $6,734 (2025) |
| Deeds & Mortgages | Dec 2022 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 076-421-043-1 |
| Primary APN | 076-421-043-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,256 sqft Living Area |
| 1st Floor Area | 904 sqft |
| 2nd Floor Area | 352 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1990 |
| Lot Area | 3,120 sqft (0.072 acres) |
| Garage Type | Attached |
| Garage Area | 494 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Street Address | 3136 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 246 EX MR & FEE BLW 500FT |
| Legal Subdivision | SUBDIVISION 4252 |
| Legal Tract | 4252 |
| Legal Lot Number | 246 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2013 |
| Census Tract | 307205 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 3136 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 16, 2022 · Amount on Record |
| Deed Sale | Dec 16, 2022 · Amount on Record |
| Prior Sale | Dec 22, 2005 · Amount on Record |
| Deed Document Number | 2022184945 |
| Prior Transfer Date | Jul 19, 2006 |
| Prior Transfer Doc | 0000254446 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Dec 16, 2022 |
| Property Address | 3136 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Document Number | 0000184945 |
| Map Reference | MB 145 PG 7 |
| Instrument Date | Dec 9, 2022 |
| Instrument | 2022-184945 |
| Transaction Type | Transfer |
| Record Updated | Dec 26, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 3136 HEMLOCK ST, ANTIOCH, CA 94509-5212 |
| Document Number | 0000184946 |
|---|---|
| Date | Dec 16, 2022 |
| Instrument | 2022-184946 |
| Name | FAIRWAY INDEPENDENT MORTGAGE CORP |
|---|---|
| Type | Mortgage Company |
| Type | FHA Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 1 Months |
| Due | Jan 1, 2023 |
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 | $562,440 (+2%) Land $291,832 Building $270,608 | |
| 2025 | $6,734.00 (+5.01%) | $551,412 (+4.04%) Land $286,110 Building $265,302 |
| 2023 | $6,413.00 (+11.65%) | $530,000 Land $275,000 Building $255,000 |
| 2022 | $5,744.00 |
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 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.
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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