Contra Costa County property record for 5470 Chamberlain St, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,632 sqft · built 2020 |
| Lot Size | 0.186 acres (8,109 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $613,000 (Oct 2020) |
| Tax Bill | $9,271 (2025) |
| Deeds & Mortgages | Oct 2020 Construction Loan Sep 2021 Line of Credit + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 056-310-074-2 |
| Primary APN | 056-310-074-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,632 sqft Living Area |
| 1st Floor Area | 1,632 sqft |
| Year Built | Built 2020 |
|---|---|
| Effective Year Built | Effective 2020 |
| Lot Area | 8,109 sqft (0.186 acres) |
| Garage Type | Attached |
| Garage Area | 410 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 5470 CHAMBERLAIN ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8719 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7938 L14 |
| Legal Subdivision | QUAIL COVE SUB 7938 |
| Legal Tract | 7938 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 303207 |
5470 Chamberlain St is owned and occupied by two individuals who bought it in October 2020.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 22, 2020 | Deed of Trust, Mortgage · Construction Mortgage FIVE STAR BANK |
| Sep 22, 2021 | Deed of Trust, Mortgage · Line of Credit STATE DEPARTMENT FCU |
| Oct 23, 2020 | Grant Deed, Transfer · Conventional Mortgage LOANDEPOT.COM LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 23, 2020 · Amount on File |
| Deed Sale | Oct 23, 2020 · Amount on File |
| Deed Document Number | 2020247880 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000247245 |
|---|---|
| Date | Oct 22, 2020 |
| Instrument | 2020-247245 |
| Name | FIVE STAR BANK |
|---|---|
| Type | Bank |
| Address | RANCHO CORDOVA, CA 95670 |
| Type | Construction Mortgage |
|---|---|
| Amount | Amount on Record |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Name | Verified Name |
|---|---|
| Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Document Number | 0000263918 |
|---|---|
| Date | Sep 22, 2021 |
| Instrument | 2021-263918 |
| Name | STATE DEPARTMENT FCU |
|---|---|
| Type | Credit Union |
| Address | ALEXANDRIA, VA 22314 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 300 Months |
| Due | Sep 21, 2046 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 23, 2020 |
| Property Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Document Number | 0000247880 |
| Map Reference | MB 541 PG 48 |
| Instrument Date | Oct 14, 2020 |
| Instrument | 2020-247880 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| 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 | Community Property with Right of Survivorship |
| Address | 5470 CHAMBERLAIN ST, ANTIOCH, CA 94531-8719 |
| Document Number | 0000247882 |
|---|---|
| Date | Oct 23, 2020 |
| Instrument | 2020-247882 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2050 |
The 2025 property tax bill for 5470 Chamberlain St was $9,271.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Elementary School District | Brentwood Union Elementary School District (KG - 08) |
| Secondary School District | Liberty Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $676,467 (+2%) Land $220,814 Building $455,653 | |
| 2025 | $9,271.00 | $663,204 Land $216,485 Building $446,719 |
| 2023 | $8,931.00 (+1.85%) | $637,453 Land $208,080 Building $429,373 |
| 2022 | $8,769.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 5470 Chamberlain 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 | 2 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 5470 Chamberlain St is low, with a 0.03% 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 | 0.03% 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 205 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
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