Contra Costa County property record for 406 Olympus, Apt 4, Hercules, CA 94547
| Property Type | Condominium |
|---|---|
| Details | 2 bd · 2.5 ba · 1,180 sqft · built 1988 |
| Lot Size | 0.017 acres (719 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $475,000 (Oct 2024) |
| Tax Bill | $7,518 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 404-140-018-7 |
| Primary APN | 404-140-018-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 4 Rooms |
| Stories | 2 Stories |
| Building Area | 1,180 sqft Living Area |
| 1st Floor Area | 576 sqft |
| 2nd Floor Area | 604 sqft |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Condo/Apartment |
| Lot Area | 719 sqft (0.017 acres) |
| Garage Type | Attached |
| Garage Area | 410 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 406 OLYMPUS, 4 |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-1954 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Condominium |
| Local Zoning Code | PD |
| Legal Description | T06234 L B BG0031 U0004 |
| Legal Subdivision | SUBDIVISION 6234 |
| Legal Tract | 6234 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1020 |
| Census Tract | 359105 |
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 | 406 OLYMPUS, 4, HERCULES, CA 94547-1954 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 15, 2024 · Amount on Record |
| Deed Sale | Oct 15, 2024 · Amount on Record |
| Deed Document Number | 2024101387 |
| Prior Transfer Date | Sep 23, 1998 |
| Prior Transfer Doc | 0000092527 |
| Record Updated | Oct 29, 2026 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Hercules City |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $484,500 (+2%) Land $204,000 Building $280,500 | |
| 2025 | $7,518.00 (+95.58%) Homeowner's exemption | $475,000 (+150.96%) Land $200,000 Building $275,000 |
| 2023 | $3,844.00 (+1.16%) | $189,275 Land $47,447 Building $141,828 |
| 2022 | $3,800.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 | 1 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 | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 672 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: T-Mobile, Unwired.
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