Contra Costa County property record for 236 Grissom St, Hercules, CA 94547
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3 ba · 2,675 sqft · built 1989 |
| Lot Size | 0.161 acres (7,000 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $9,213 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 362-371-006-2 |
| Primary APN | 362-371-006-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,675 sqft Living Area |
| Gross Area | 3,305 sqft |
| 1st Floor Area | 1,435 sqft |
| 2nd Floor Area | 1,240 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1989 |
|---|---|
| Effective Year Built | Effective 1989 |
| Exterior Material | Stucco |
| Roof Material | Tile |
| Lot Area | 7,000 sqft (0.161 acres) |
| Garage Type | Attached |
| Garage Area | 630 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Porch |
| Cooling System | Central |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 236 GRISSOM ST |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-1047 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T6722 L45 |
| Legal Tract | 6722 |
| Legal Lot Number | 45 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | BRIONES |
| Census Block Group | 2 |
| Census Block | 2001 |
| Census Tract | 356002 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 136 FREMONT CT, HERCULES, CA 94547-1141 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Sep 8, 2015 |
| Transfer Doc | 0000190813 |
| Record Updated | Sep 20, 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 | $583,615 (+2%) Land $135,108 Building $448,507 | |
| 2025 | $9,213.00 (+5.88%) | $572,172 (+4.04%) Land $132,459 Building $439,713 |
| 2023 | $8,701.00 (+1.15%) | $549,956 Land $127,316 Building $422,640 |
| 2022 | $8,602.00 |
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 |
|---|---|
| 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 |
| Nearby Flood Claims | 7 (1993–2017) |
| Claims Outside the SFHA | 2 of 7 |
| Most Recent Claim | Feb 2017 · Severe Winter Storms, Flooding, And Mudslides |
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 | High above 74% of the US · above 50% of California |
|---|---|
| Wildfire Likelihood | 0.5% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 216 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired.
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