Contra Costa County property record for 5575 Howell Mountain Ln, Antioch, CA 94531
| Property Type | Cluster Home |
|---|---|
| Details | 5 bd · 4 ba · 2,711 sqft · built 2021 |
| Lot Size | 0.305 acres (13,320 sqft) |
| Owner | 2 Individual Names on Record |
| Tax Bill | $13,059 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 057-080-140-7 |
| Primary APN | 057-080-140-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,711 sqft Living Area |
| 1st Floor Area | 1,406 sqft |
| 2nd Floor Area | 1,305 sqft |
| Year Built | Built 2021 |
|---|---|
| Lot Area | 13,320 sqft (0.305 acres) |
| Garage Area | 420 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|
| Account Number | 057-080-140-7 |
|---|---|
| Street Address | 5575 HOWELL MOUNTAIN LN |
| City | ANTIOCH |
| State | CA |
| Zip | 94531-6212 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Cluster Home |
| Legal Description | T9562 L1017 |
| Legal Tract | 9562 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | EAST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2011 |
| Census Tract | 303207 |
Source: Contra Costa County records, as of September 29, 2025
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 |
|---|---|
| Co-owner | Co-owner on Record |
| Mailing Address | 5575 HOWELL MOUNTAIN LN, ANTIOCH, CA 94531-6212 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Jun 8, 2026 |
Source: Contra Costa County assessment roll, as of July 1, 2025
| 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 |
|---|---|---|
| 2025 | $13,059.00 (+3.36%) Homeowner's exemption | $862,000 (+5.64%) Land $161,923 Building $700,077 |
| 2023 | $12,635.00 (-6.92%) Homeowner's exemption | $816,000 Land $153,000 Building $663,000 |
| 2022 | $13,575.00 |
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 | 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 52% of the US · lower than 69% 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 782 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
5G (outdoors only) and 4G LTE
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