Contra Costa County property record for 193 Emerald Way, Hercules, CA 94547
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,757 sqft · built 1989 |
| Lot Size | 0.152 acres (6,600 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $460,000 (Jul 2012) |
| Tax Bill | $9,134 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 407-091-009-8 |
| Primary APN | 407-091-009-8 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,757 sqft Living Area |
| 1st Floor Area | 1,512 sqft |
| 2nd Floor Area | 1,245 sqft |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1991 |
| Lot Area | 6,600 sqft (0.152 acres) |
| Garage Type | Attached |
| Garage Area | 690 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 193 EMERALD WAY |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-1756 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T06157 L0009 B |
| Legal Tract | 06157 |
| Legal Lot Number | 9 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 359204 |
Source: Contra Costa County assessment roll, APN 407-091-009-8, as of 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 | 193 EMERALD WAY, HERCULES, CA 94547-1756 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 31, 2012 · Amount on Record |
| Deed Sale | Jul 31, 2012 · Amount on Record |
| Prior Sale | Jun 07, 2012 · Amount on Record |
| Deed Document Number | 2012181174 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County assessment roll as of July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Hercules City |
| Unified School District | West Contra Costa 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 | $577,773 (+2%) Land $226,084 Building $351,689 | |
| 2025 | $9,134.00 (+5.88%) | $566,445 (+4.04%) Land $221,651 Building $344,794 |
| 2023 | $8,627.00 (+1.11%) | $544,451 Land $213,045 Building $331,406 |
| 2022 | $8,532.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), as of October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133592043, as of September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition, as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.04% annual chance |
| Exposure | Direct burnable vegetation at the parcel |
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: FCC Broadband Data Collection, 403 locations within half a mile, as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: T-Mobile USA, Unwired.
Source: EPA Safe Drinking Water Information System, water system CA0110005, as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
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