Contra Costa County property record for 646 40th St, Richmond, CA 94805
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4 ba · 2,032 sqft · built 1941 |
| Lot Size | 0.115 acres (5,000 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $130,000 (Jan 2000) |
| Tax Bill | $9,172 (2025) |
| Deeds & Mortgages | Jun 2023 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 518-340-025-7 |
| Primary APN | 518-340-025-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4 Baths |
| Total Rooms | 8 Rooms |
| Stories | 2 Stories |
| Building Area | 2,032 sqft Living Area |
| Gross Area | 2,285 sqft |
| 1st Floor Area | 1,044 sqft |
| 2nd Floor Area | 988 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1990 |
| Exterior Material | Block |
| Construction Type | Frame |
| Lot Area | 5,000 sqft (0.115 acres) |
| Garage Type | Attached |
| Garage Area | 253 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 646 40TH ST |
|---|---|
| City | RICHMOND |
| State | CA |
| Zip | 94805-1810 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | SP RICH PULL TWNST LOT 30 POR 29 BLK 37 |
| Legal Subdivision | SPAULDING RICHMOND-PULLMAN |
| Legal Block | 37 |
| Legal Lot Number | 30 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3010 |
| Census Tract | 371000 |
646 40th St is held in a trust since June 2023.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 646 40TH ST, RICHMOND, CA 94805-1810 |
| Owner Type | Company |
| Vesting | Trust |
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 | Jan 24, 2000 · Amount on File |
| Deed Sale | Jan 24, 2000 · Amount on File |
| Deed Document Number | 200014349 |
| Last Transfer Date | Jun 14, 2023 |
| Transfer Doc | 0000057932 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 20, 2023 |
| Property Address | 646 40TH ST, RICHMOND, CA 94805-1810 |
| Document Number | 0000057932 |
| Map Reference | MB 4 PG 80 |
| Instrument Date | Jun 14, 2023 |
| Instrument | 2023-057932 |
| Transaction Type | Transfer |
| Record Updated | Jun 29, 2023 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Living Trust |
| Address | 646 40TH ST, RICHMOND, CA 94805-1810 |
The 2025 property tax bill for 646 40th St was $9,172.
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 | $544,997 (+2%) Land $155,187 Building $389,810 | |
| 2025 | $9,172.00 | $534,312 Land $152,145 Building $382,167 |
| 2023 | $7,184.00 (+1.93%) | $395,919 (+2%) Land $146,238 Building $249,681 |
| 2022 | $7,048.00 | $388,157 Land $143,371 Building $244,786 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 646 40th St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
Wildfire risk around 646 40th St is low, with less than 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 93% of the US · lower than 96% 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 949 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Etheric Networks, GeoLinks.
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