Contra Costa County property record for 133 Alder Ct, Hercules, CA 94547 · Last verified August 2026
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,673 sqft · built 1977 |
| Lot Size | 0.143 acres (6,240 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,363 (2025) |
| Deeds & Mortgages | Sep 2023 Transfer Sep 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 406-441-006-3 |
| Primary APN | 406-441-006-3 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 1,673 sqft Living Area |
| 1st Floor Area | 1,673 sqft |
| Year Built | Built 1977 |
|---|---|
| Effective Year Built | Effective 1977 |
| Lot Area | 6,240 sqft (0.143 acres) |
| Garage Type | Attached |
| Garage Area | 431 sqft |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 133 ALDER CT |
|---|---|
| City | HERCULES |
| State | CA |
| Zip | 94547-1331 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | T04746 L0061 B |
| Legal Subdivision | SUBDIVISION 4746 |
| Legal Tract | 04746 |
| Legal Lot Number | 61 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3001 |
| Census Tract | 359203 |
Source: Contra Costa County records · APN 406-441-006-3
Assessment roll updated July 14, 2026 · Last verified August 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 | 133 ALDER CT, HERCULES, CA 94547-1331 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Sep 11, 2023 | Transfer on Death Deed, Transfer |
| Sep 11, 2023 | Affidavit of Death of Joint Tenant, Transfer |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Sep 11, 2023 |
| Transfer Doc | 0000087405 |
| Record Updated | Sep 20, 2026 |
| Document Type | Transfer on Death Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 11, 2023 |
| Property Address | 133 ALDER CT, HERCULES, CA 94547-1331 |
| Document Number | 0000087405 |
| Map Reference | MB 179 PG 22-30 |
| Instrument Date | Sep 11, 2023 |
| Instrument | 2023-087405 |
| Transaction Type | Transfer |
| Record Updated | Sep 19, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 133 ALDER CT, HERCULES, CA 94547-1331 |
| Name | Verified Name |
|---|
| Document Type | Affidavit of Death of Joint Tenant |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 11, 2023 |
| Property Address | 133 ALDER CT, HERCULES, CA 94547-1331 |
| Document Number | 0000087404 |
| Map Reference | MB 179 PG 22-30 |
| Instrument Date | Sep 11, 2023 |
| Instrument | 2023-087404 |
| Transaction Type | Transfer |
| Record Updated | Sep 19, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 133 ALDER CT, HERCULES, CA 94547-1331 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified August 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 | $134,049 (+2%) Land $36,173 Building $97,876 | |
| 2025 | $3,363.00 (+9.79%) Homeowner's exemption | $131,421 (+4.04%) Land $35,464 Building $95,957 |
| 2023 | $3,063.00 (+1.32%) | $126,320 Land $34,088 Building $92,232 |
| 2022 | $3,023.00 |
Source: FEMA National Flood Hazard Layer, Contra Costa County (06013C), updated October 12, 2026 · FEMA OpenFEMA NFIP redacted claims and policies, census block group 060133592033, refreshed September 2026 · USDA Forest Service Wildfire Risk to Communities, 2nd edition (2024), fuels as of 2020 · Last verified October 2026
| FEMA Flood Zone | Zone X |
|---|---|
| Special Flood Hazard Area | No |
| Flood Hazard | Minimal |
| 500-Year Floodplain | No |
| Nearby Flood Policies | 1 in force |
| Wildfire Risk | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| 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, availability as of December 31, 2025 · Published October 2026 · based on 494 locations within about half a mile of this property
| Provider | Technology | Download / Upload (Mbps) |
|---|---|---|
| Xfinity | Cable | 2,000 / 250 |
| Verizon | Fixed Wireless | 300 / 20 |
| T-Mobile USA | Fixed Wireless | 100 / 20 |
| AT&T | DSL | 100 / 20 |
May also be available at this address: Unwired. Availability varies by address; speeds are provider-advertised maximums, not measured.
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