Contra Costa County property record for 539 12th St, Richmond, CA 94801
| Property Type | Single Family Home |
|---|---|
| Details | 1 bd · 1 ba · 669 sqft · built 1910 |
| Lot Size | 0.124 acres (5,400 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,150 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 534-350-009-5 |
| Primary APN | 534-350-009-5 |
|---|---|
| Alternative APN |
|
| Bedrooms | 1 Bed |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 669 sqft Living Area |
| 1st Floor Area | 669 sqft |
| Year Built | Built 1910 |
|---|---|
| Effective Year Built | Effective 1910 |
| Lot Area | 5,400 sqft (0.124 acres) |
| Garage Type | Attached |
| Garage Area | 220 sqft |
| Parking Spaces | 1 Parking Space |
| Street Address | 539 12TH ST |
|---|---|
| City | RICHMOND |
| State | CA |
| Zip | 94801-2723 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1 |
| Legal Description | CITY OF RICHMOND LOTS 25 & 26 BLK 130 |
| Legal Subdivision | RICHMOND |
| Legal Block | 130 |
| Legal Lot Number | 25,26 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 3 |
| Census Block | 3003 |
| Census Tract | 376000 |
539 12th St is owned and occupied by two individuals who acquired it in December 2012.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 539 12TH ST, RICHMOND, CA 94801-2723 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
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 Transfer Date | Dec 13, 2012 |
| Transfer Doc | 0000318933 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 539 12th St was $3,150.
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 | $120,812 (+2%) Land $54,274 Building $66,538 | |
| 2025 | $3,150.00 | $118,444 Land $53,210 Building $65,234 |
| 2023 | $3,080.00 (+3.04%) | $113,846 Land $51,145 Building $62,701 |
| 2022 | $2,989.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 539 12th 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.
The area around 539 12th St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 715 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, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, GeoLinks, T-Mobile.
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