Contra Costa County property record for 2472 Mammoth Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 3,357 sqft · built 2001 |
| Lot Size | 0.166 acres (7,217 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $420,000 (Sep 2001) |
| Tax Bill | $7,619 (2025) |
| Deeds & Mortgages | May 2026 Line of Credit Oct 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 055-590-016-6 |
| Primary APN | 055-590-016-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,357 sqft Living Area |
| 1st Floor Area | 1,649 sqft |
| 2nd Floor Area | 1,708 sqft |
| Year Built | Built 2001 |
|---|---|
| Effective Year Built | Effective 2001 |
| Lot Area | 7,217 sqft (0.166 acres) |
| Garage Type | Attached |
| Garage Area | 651 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 2472 MAMMOTH WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-9085 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8312 L605 |
| Legal Subdivision | SUBDIVISION 8312 |
| Legal Tract | 8312 |
| Legal Lot Number | 605 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | TASSAJARA |
| Census Block Group | 1 |
| Census Block | 1008 |
| Census Tract | 355119 |
Source: Contra Costa County records · APN 055-590-016-6
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 | 2 Individual Names on File |
|---|---|
| Mailing Address | 2472 MAMMOTH WAY, ANTIOCH, CA 94531-9085 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Date | Document |
|---|---|
| May 18, 2026 | Deed of Trust, Mortgage · Line of Credit FIRST UNITED CREDIT UNION |
| Oct 01, 2021 | Intrafamily Transfer, Transfer · Conventional Mortgage LOANDEPOT.COM LLC |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Sep 06, 2001 · Amount on Record |
| Deed Sale | Sep 06, 2001 · Amount on Record |
| Deed Document Number | 2001266944 |
| Last Transfer Date | Sep 20, 2021 |
| Transfer Doc | 0000272858 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 18, 2026 |
| Property Address | 2472 MAMMOTH WAY, ANTIOCH, CA 94531-9085 |
| Document Number | 0000051383 |
| Instrument Date | May 12, 2026 |
| Instrument | 202651383 |
| Transaction Type | Mortgage |
| Record Updated | Jul 12, 2026 |
| Title Company | E-CHICAGO TITLE, CHICAGO TITLE |
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants, 205 |
| Address | 2472 MAMMOTH WAY, ANTIOCH, CA 94531-9085 |
| Document Number | 0000051383, |
|---|---|
| Date | May 18, 2026 |
| Instrument | 202651383 |
| Name | FIRST UNITED CREDIT UNION |
|---|
| Type | Line of Credit |
|---|---|
| Amount | Amount Recorded |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 6.3% |
| Initial Type | Adjustable Rate |
| Adjustable | Adjustable Rate Rider |
| Max Rate | -1% |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Oct 01, 2021 |
| Property Address | 2472 MAMMOTH WAY, ANTIOCH, CA 94531-9085 |
| Document Number | 0000272858 |
| Map Reference | MB 416 PG 23 |
| Instrument Date | Sep 20, 2021 |
| Instrument | 2021-272858 |
| Transaction Type | Transfer |
| Record Updated | Nov 03, 2022 |
| Title Company | AMERICAN SW TITLE, AMERICAN COAST TITLE |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Joint Tenants |
| Address | 2472 MAMMOTH WAY, ANTIOCH, CA 94531-9085 |
| Document Number | 0000272859 |
|---|---|
| Date | Oct 01, 2021 |
| Instrument | 2021-272859 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Oct 01, 2051 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 2.12% |
| Type Change Date | Oct 01, 2031 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 7.12% |
| Index | Other |
| Max Rate | 7.12% |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $682,464 (+2%) Land $128,822 Building $553,642 | |
| 2025 | $7,619.00 (+6.08%) Homeowner's exemption | $669,084 (+4.04%) Land $126,297 Building $542,787 |
| 2023 | $7,182.00 (+1.43%) Homeowner's exemption | $643,105 Land $121,394 Building $521,711 |
| 2022 | $7,081.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | High above 81% of the US · above 59% of California |
|---|---|
| Wildfire Likelihood | 0.8% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
Values are read at the parcel center point; 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) |
|---|---|
| AT&T Fiber · DSL | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
May also be available: Verizon.
Based on FCC filings for 389 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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