Contra Costa County property record for 4848 Massive Peak Way, Antioch, CA 94531
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,739 sqft · built 1992 |
| Lot Size | 0.14 acres (6,088 sqft) |
| Owner | Trust Name on File |
| Tax Bill | $5,563 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 072-330-123 |
| Primary APN | 072-330-123 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 9 Rooms |
| Stories | 2 Stories |
| Building Area | 2,739 sqft Living Area |
| 1st Floor Area | 1,585 sqft |
| 2nd Floor Area | 1,154 sqft |
| Year Built | Built 1992 |
|---|---|
| Effective Year Built | Effective 1992 |
| Lot Area | 6,088 sqft (0.14 acres) |
| Garage Type | Attached |
| Garage Area | 625 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 4848 MASSIVE PEAK WAY |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94531-8310 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T7317 L123 |
| Legal Tract | 7317 |
| Legal Lot Number | 123 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 2 |
| Census Block | 2000 |
| Census Tract | 355109 |
4848 Massive Peak Way is owner-occupied and held in a trust since October 2013.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 4848 MASSIVE PEAK WAY, ANTIOCH, CA 94531-8310 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
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 Transfer Date | Oct 18, 2013 |
| Transfer Doc | 0000248231 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 4848 Massive Peak Way was $5,563 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 | $490,964 (+2%) Land $82,956 Building $408,008 | |
| 2025 | $5,563.00 Homeowner's exemption | $481,338 Land $81,330 Building $400,008 |
| 2023 | $5,231.00 (+1.61%) Homeowner's exemption | $462,649 Land $78,173 Building $384,476 |
| 2022 | $5,148.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4848 Massive Peak Way in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1998.
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 Claims | 1 (1998) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Feb 1998 · Severe Winter Storms And Flooding |
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 4848 Massive Peak Way is low, with a 0.02% 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 | 0.02% 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 484 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 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile, Verizon.
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