Contra Costa County property record for 1 Knoll Ct, Hercules, CA 94547
| Property Type | Townhouse |
|---|---|
| Details | 3 bd · 2.5 ba · 1,596 sqft · built 1980 |
| Lot Size | 0.055 acres (2,408 sqft) |
| Owner | Individual Name on File |
| Last Sale | $196,500 (Aug 2012) |
| Tax Bill | $4,776 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 406-472-007-3 |
| Primary APN | 406-472-007-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 1,596 sqft Living Area |
| 1st Floor Area | 840 sqft |
| 2nd Floor Area | 756 sqft |
| Year Built | Built 1980 |
|---|---|
| Effective Year Built | Effective 1980 |
| Architectural Style | Townhouse |
| Lot Area | 2,408 sqft (0.055 acres) |
| Garage Type | Attached |
| Garage Area | 399 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Central |
|---|
| Street Address | 1 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 L0053 B |
| Legal Subdivision | COUNTRYRUN |
| Legal Tract | 05100 |
| Legal Lot Number | 53 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3004 |
| Census Tract | 359203 |
Source: Contra Costa County assessment roll, APN 406-472-007-3, 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 | Individual Name on File |
|---|---|
| Mailing Address | 70 CRESTLAKE DR, SAN FRANCISCO, CA 94132-1333 |
| Owner Type | Individual |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Sale | Aug 22, 2012 · Amount on Record |
| Deed Sale | Aug 22, 2012 · Amount on Record |
| Prior Sale | Sep 22, 2011 · Amount on Record |
| Deed Document Number | 2012203754 |
| Prior Transfer Date | Sep 19, 2011 |
| Prior Transfer Doc | 0000195907 |
| 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 | $246,802 (+2%) Land $37,676 Building $209,126 | |
| 2025 | $4,776.00 (+7.4%) | $241,964 (+4.04%) Land $36,938 Building $205,026 |
| 2023 | $4,447.00 (+1.16%) | $232,569 Land $35,504 Building $197,065 |
| 2022 | $4,396.00 |
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 060133592033, 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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 1 in force |
| 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 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, 693 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 | 100 / 20 |
May also be available: T-Mobile USA, Unwired.
5G (outdoors only) and 4G LTE
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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