Contra Costa County property record for 5147 Grass Valley Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2.5 ba · 1,697 sqft · built 1992 |
| Lot Size | 0.138 acres (6,000 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $3,757 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage Apr 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-170-019-6 |
| Primary APN | 056-170-019-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,697 sqft Living Area |
| 1st Floor Area | 869 sqft |
| 2nd Floor Area | 828 sqft |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Lot Area | 6,000 sqft (0.138 acres) |
| Garage Type | Attached |
| Garage Area | 467 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5147 GRASS VALLEY WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8436 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7587 L217 |
| Legal Subdivision | SUBDIVISION 7587 |
| Legal Tract | 7587 |
| Legal Lot Number | 217 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1017 |
| Census Tract | 303207 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Shannon-Williamson Ranch listed 1987 · 12 contributing resources · NRIS 87000003 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
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 | 5147 GRASS VALLEY WAY, ANTIOCH, CA 94531-8436 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| Apr 19, 2021 | Deed of Trust, Mortgage · Conventional Mortgage WESTERN EXPRESS LENDING |
| Apr 17, 2020 | Deed of Trust, Mortgage · Conventional Mortgage BANK OF AMERICA |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5147 GRASS VALLEY WAY, ANTIOCH, CA 94531-8436 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TTL SANTA ANA |
| Name | Verified Name |
|---|---|
| Address | 5147 GRASS VALLEY WAY, ANTIOCH, CA 94531-8436 |
| Document Number | 0000116385 |
|---|---|
| Date | Apr 19, 2021 |
| Instrument | 2021-116385 |
| Name | WESTERN EXPRESS LENDING |
|---|---|
| Type | Mortgage Company |
| Address | LAKE FOREST, CA 92630 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5147 GRASS VALLEY WAY, ANTIOCH, CA 94531-8436 |
| Document Number | 0000079085 |
| Instrument Date | Apr 17, 2020 |
| Transaction Type | Mortgage |
| Record Updated | May 5, 2020 |
| Title Company | SERVICELINK |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants with Right of Survivorship |
| Address | 5147 GRASS VALLEY WAY ANTIOCH CA 945318436, ANTIOCH, CA 94531-8436 |
| Document Number | 0000079085 |
|---|---|
| Date | Apr 28, 2020 |
| Instrument | 79085 |
| Name | BANK OF AMERICA |
|---|---|
| Type | Bank |
| Address | CHARLOTTE, NC 28255 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 27, 2050 |
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 | $305,669 (+2%) Land $99,185 Building $206,484 | |
| 2025 | $3,757.00 (+6.52%) Homeowner's exemption | $299,677 (+4.04%) Land $97,241 Building $202,436 |
| 2023 | $3,527.00 (+1.5%) Homeowner's exemption | $288,042 Land $93,466 Building $194,576 |
| 2022 | $3,475.00 |
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
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 51% of the US · lower than 70% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within 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 638 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 |
| AT&T DSL | 100 / 20 |
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