Contra Costa County property record for 10 Knoll Ct, Hercules, CA 94547
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2.5 ba · 1,434 sqft · built 1980 |
| Lot Size | 0.053 acres (2,300 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $612,000 (Nov 2024) |
| Tax Bill | $9,517 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 406-472-016-4 |
| Primary APN | 406-472-016-4 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,434 sqft Living Area |
| 1st Floor Area | 759 sqft |
| 2nd Floor Area | 675 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Townhouse |
| Lot Area | 2,300 sqft (0.053 acres) |
| Garage Type | Attached |
| Garage Area | 399 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 10 KNOLL CT |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-1430 |
| Property Category | Residential |
| Property Type | Residential > Condominium / Townhouse > Townhouse |
| Local Zoning Code | PUD |
| Legal Description | T05100 L0062 B |
| Legal Subdivision | SUBDIVISION 5100 |
| Legal Tract | 05100 |
| Legal Lot Number | 62 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 359203 |
10 Knoll Ct, a townhouse, is owned and occupied by two individuals who bought it in November 2024.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 10 KNOLL CT, HERCULES, CA 94547-1430 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Tenants in Common |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Nov 4, 2024 · Amount on File |
| Deed Sale | Nov 4, 2024 · Amount on File |
| Deed Document Number | 2024119070 |
| Prior Transfer Date | Jan 22, 2002 |
| Prior Transfer Doc | 0000034447 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 10 Knoll Ct was $9,517.
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 | $624,240 (+2%) Land $318,240 Building $306,000 | |
| 2025 | $9,517.00 | $612,000 Land $312,000 Building $300,000 |
| 2023 | $3,199.00 (+1.3%) Homeowner's exemption | $142,950 Land $53,335 Building $89,615 |
| 2022 | $3,158.00 |
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.
FEMA maps place 10 Knoll Ct in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
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 AO, within 500 ft |
| 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.
Wildfire risk around 10 Knoll Ct is low, with a 0.01% 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 | 0.01% 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 693 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 |
| AT&T DSL | 100 / 20 |
May also be available: T-Mobile, Unwired.
5G (outdoors only) and 4G LTE
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