Contra Costa County property record for 507 Rincon Rd, El Sobrante, CA 94803
| Property Type | Duplex |
|---|---|
| Details | 4 bd · 2 ba · 1,764 sqft · built 1953 |
| Lot Size | 0.197 acres (8,600 sqft) |
| Owner | Individual Name on File |
| Last Sale | $290,000 (Jun 2020) |
| Tax Bill | $10,198 (2025) |
| Deeds & Mortgages | Jun 2020 Sale & Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 426-262-016-6 |
| Primary APN | 426-262-016-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,764 sqft Living Area |
| 1st Floor Area | 1,764 sqft |
| Year Built | Built 1953 |
|---|---|
| Effective Year Built | Effective 1984 |
| Architectural Style | Duplex Single |
| Lot Area | 8,600 sqft (0.197 acres) |
| Street Address | 507 RINCON RD |
|---|---|
| City | EL SOBRANTE |
| State | CA |
| Zip | 94803-1630 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R7 |
| Legal Description | PCL MAP 89 PG 15 PCL A |
| Legal Tract | 89PM15 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | WEST CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 363000 |
507 Rincon Rd, a duplex, is owned and occupied by an individual who bought it in June 2020.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 507 RINCON RD, EL SOBRANTE, CA 94803-1630 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 | Name on Deed |
|---|---|
| Last Sale | Jun 12, 2020 · Amount on File |
| Deed Sale | Jun 12, 2020 · Amount on File |
| Prior Sale | Aug 19, 2013 · Amount on File |
| Deed Document Number | 2020114161 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jun 12, 2020 |
| Property Address | 507 RINCON RD, EL SOBRANTE, CA 94803-1630 |
| Document Number | 0000114161 |
| Map Reference | MB 89 PG 15 |
| Instrument Date | Jun 11, 2020 |
| Instrument | 2020-114161 |
| Transaction Type | Transfer |
| Record Updated | Jul 27, 2021 |
| Title Company | OLD REPUBLIC TITLE COMPANY |
| Amount | Amount on Record |
|---|---|
| Downpayment | Downpayment on Record |
| Loan-to-Value (LTV) | LTV on Record |
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 507 RINCON RD, EL SOBRANTE, CA 94803-1630 |
| Document Number | 0000114162 |
|---|---|
| Date | Jun 12, 2020 |
| Instrument | 2020-114162 |
| Name | UNITED WHOLESALE MORTGAGE |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jul 1, 2050 |
The 2025 property tax bill for 507 Rincon Rd was $10,198.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | West Contra Costa Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $649,224 (+2%) Land $423,893 Building $225,331 | |
| 2025 | $10,198.00 | $636,495 Land $415,582 Building $220,913 |
| 2023 | $9,741.00 (+1.54%) | $611,782 Land $399,446 Building $212,336 |
| 2022 | $9,593.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 507 Rincon Rd 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 507 Rincon Rd 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 542 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Sonic Telecom, T-Mobile, Unwired.
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