Contra Costa County property record for 4946 Thunderhead Ct, Richmond, CA 94803
| Property Type | Single Family Home |
|---|---|
| Details | 5 bd · 3.5 ba · 2,296 sqft · built 1984 |
| Lot Size | 0.229 acres (9,975 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $10,454 (2025) |
| Deeds & Mortgages | Dec 2019 Line of Credit |
| Flood Zone | Zone X (minimal risk) |
| APN | 431-411-012-5 |
| Primary APN | 431-411-012-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 5 Beds |
|---|---|
| Full Baths | 3.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 2,296 sqft Living Area |
| Gross Area | 2,107 sqft |
| 1st Floor Area | 1,656 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1984 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Contemporary |
| Exterior Material | Stucco |
| Roof Material | Wood Shingle |
| Lot Area | 9,975 sqft (0.229 acres) |
| Garage Type | Attached |
| Garage Area | 451 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 4946 THUNDERHEAD CT |
|---|---|
| City | EL SOBRANTE |
| State | CA |
| Zip | 94803-2144 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | T05301 L0035 B |
| Legal Subdivision | SUBDIVISION 5301 |
| Legal Tract | 05301 |
| Legal Lot Number | 35 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 360102 |
4946 Thunderhead Ct is owner-occupied and held in a trust since February 2016.
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 | 2 Trust Names on File |
|---|---|
| Mailing Address | 4946 THUNDERHEAD CT, EL SOBRANTE, CA 94803-2144 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Feb 16, 2016 |
| Transfer Doc | 0000047084 |
| Record Updated | Sep 20, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 4946 THUNDERHEAD CT, RICHMOND, CA 94803-2144 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | NATIONAL CLOSING SOLUTIONS |
| Name | Verified Name |
|---|
| Document Number | 0000232769 |
|---|---|
| Date | Dec 27, 2019 |
| Instrument | 2019-232769 |
| Name | PATELCO CU |
|---|---|
| Type | Credit Union |
| Address | PLEASANTON, CA 94588 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Term | 301 Months |
| Due | Jan 30, 2045 |
| Rate Type | Adjustable Rate |
|---|---|
| Change Frequency | Monthly |
The 2025 property tax bill for 4946 Thunderhead Ct was $10,454 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Richmond City |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $621,534 (+2%) Land $162,319 Building $459,215 | |
| 2025 | $10,454.00 Homeowner's exemption | $609,348 Land $159,137 Building $450,211 |
| 2023 | $9,978.00 (+1.64%) Homeowner's exemption | $585,688 Land $152,958 Building $432,730 |
| 2022 | $9,817.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 4946 Thunderhead Ct in Zone X, an area of minimal flood risk.
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 |
| Community Rating System | Class 10 (0% premium discount) |
| 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 4946 Thunderhead Ct is moderate, ranking above 65% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 65% of the US · above 40% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
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 95 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T Fixed Wireless | 100 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Verizon.
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