Contra Costa County property record for 100 Watermark Ter, Hercules, CA 94547
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 3,489 sqft · built 2003 |
| Lot Size | 0.154 acres (6,692 sqft) |
| Owner | Individual Name on Record |
| Last Sale | $662,500 (Dec 2003) |
| Tax Bill | $14,457 (2025) |
| Deeds & Mortgages | Apr 2023 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 404-530-008-6 |
| Primary APN | 404-530-008-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 10 Rooms |
| Stories | 2 Stories |
| Building Area | 3,489 sqft Living Area |
| 1st Floor Area | 1,741 sqft |
| 2nd Floor Area | 1,748 sqft |
| Year Built | Built 2003 |
|---|---|
| Effective Year Built | Effective 2003 |
| Architectural Style | Cluster |
| Lot Area | 6,692 sqft (0.154 acres) |
| Garage Type | Attached |
| Garage Area | 611 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 100 WATERMARK TER |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-2658 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T8595 L14 |
| Legal Subdivision | SUBDIVISION 8595 |
| Legal Tract | 8595 |
| Legal Lot Number | 14 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 392300 |
Source: Contra Costa County records, as of October 14, 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 Record |
|---|---|
| Mailing Address | 100 WATERMARK TER, HERCULES, CA 94547-2658 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Single Person |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 11, 2003 · Amount on Record |
| Deed Sale | Dec 11, 2003 · Amount on Record |
| Deed Document Number | 2003599012 |
| Last Transfer Date | May 14, 2008 |
| Transfer Doc | 0000113647 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 100 WATERMARK TER, HERCULES, CA 94547-2658 |
| Transaction Type | Mortgage |
| Record Updated | Apr 18, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 100 WATERMARK TER, HERCULES, CA 94547-2658 |
| Document Number | 0000032681 |
|---|---|
| Date | Apr 7, 2023 |
| Instrument | 2023-032681 |
| Name | NORTHERN CALIFORNIA MORTGAGE FUND XVI LL |
|---|---|
| Address | PETALUMA, CA 94954 |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 359 Months |
| Due | Mar 10, 2053 |
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 | $960,610 (+2%) Land $231,154 Building $729,456 | |
| 2025 | $14,457.00 (+5.74%) Homeowner's exemption | $941,775 (+4.04%) Land $226,622 Building $715,153 |
| 2023 | $13,672.00 (+1.32%) Homeowner's exemption | $905,207 Land $217,823 Building $687,384 |
| 2022 | $13,494.00 |
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 |
|---|---|
| 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 96% of the US · lower than 97.4% of California |
|---|---|
| Wildfire Likelihood | Under 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 613 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Unwired, Verizon.
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