Contra Costa County property record for 1521 Potrero Ave, Richmond, CA 94804
| Property Type | Quadplex |
|---|---|
| Details | 3,158 sqft · built 1961 |
| Lot Size | 0.121 acres (5,250 sqft) |
| Owner | Company Name on File |
| Tax Bill | $5,826 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 544-271-008-2 |
| Primary APN | 544-271-008-2 |
|---|---|
| Alternative APN |
|
| Total Rooms | 4 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 3,158 sqft Living Area |
| 1st Floor Area | 3,158 sqft |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Quadruplex |
| Lot Area | 5,250 sqft (0.121 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Parking Spaces | 4 Parking Spaces |
| Street Address | 1521 POTRERO AVE |
|---|---|
| City | RICHMOND |
| State | CA |
| Zip | 94804-3759 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Quadplex |
| Legal Description | GRIFFIN WATROUS ADDN LOTS 18 & 19 BLK 17 |
| Legal Subdivision | GRIFFIN WATROUS ADD |
| Legal Block | 17 |
| Legal Lot Number | 18,19 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1007 |
| Census Tract | 380002 |
Source: Contra Costa County records · APN 544-271-008-2
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | 4808 CASTILLA AVE, RICHMOND, CA 94804-4336 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Richmond 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 | $73,472 (+2%) Land $17,119 Building $56,353 | |
| 2025 | $5,826.00 (+5.33%) | $72,033 (+4.04%) Land $16,784 Building $55,249 |
| 2023 | $5,531.00 (+4.67%) | $69,237 Land $16,133 Building $53,104 |
| 2022 | $5,284.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · FEMA NFIP claims and policies as of September 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 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 | 3 in force |
| Wildfire Risk | Not rated no burnable land within 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 as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| Sonic Telecom Fiber | 10,000 / 10,000 |
| AT&T Fiber · 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 |
| Etheric Communications, LLC. Fixed Wireless | 250 / 100 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: California Internet.
Based on FCC filings for 706 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | EAST BAY MUD serves 1,468,000 people |
|---|---|
| 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 as reported to EPA, 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. The full violation and enforcement history is in the system's EPA record.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures