San Joaquin County property record for 660 W Mount Diablo Ave, Tracy, CA 95376
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,424 sqft · built 1991 |
| Lot Size | 0.167 acres (7,285 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $278,500 (Jan 2003) |
| Tax Bill | $4,756 (2026) |
| Flood Zone | Zone X (minimal risk) |
| APN | 242-190-430-000 |
| Primary APN | 242-190-430-000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,424 sqft Living Area |
| 1st Floor Area | 1,424 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1991 |
|---|---|
| Effective Year Built | Effective 1991 |
| Construction Type | Wood |
| Lot Area | 7,285 sqft (0.167 acres) |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Old Parcel Number | 242-190-43 |
|---|---|
| Street Address | 660 W MOUNT DIABLO AVE |
| City | TRACY |
| State | CA |
| Zip | 95376-8723 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 2313 LOT 83 |
| Legal Subdivision | CIRCLE B RANCH ESTATES |
| Legal Tract | 2313 |
| Legal Block | 4 |
| Legal Lot Number | 83 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 4 |
| Census Block | 4002 |
| Census Tract | 5208 |
660 W Mount Diablo Ave is owner-occupied and held in a trust since January 2003.
Source: San Joaquin County records, as of October 13, 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 | 660 W MOUNT DIABLO AVE, TRACY, CA 95376-8723 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Jan 24, 2003 · Amount on File |
| Deed Sale | Jan 24, 2003 · Amount on File |
| Prior Sale | Oct 28, 1999 · Amount on File |
| Deed Document Number | 200316759 |
| Prior Transfer Date | Jul 1, 1995 |
| Prior Transfer Doc | 0000064118 |
| Record Updated | Oct 29, 2026 |
The 2026 property tax bill for 660 W Mount Diablo Ave was $4,756, up 0.1% from the year before.
Source: San Joaquin County assessment roll, as of September 24, 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Municipality | Tracy City |
| Unified School District | Tracy Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $4,756.00 (+0.06%) | ||
| 2025 | $4,753.00 | $403,332 Land $120,200 Building $283,132 | |
| 2023 | $4,315.00 (+2.13%) Homeowner's exemption | $387,673 Land $115,534 Building $272,139 | $574,470 |
| 2022 | $4,225.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 660 W Mount Diablo Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 27, 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 |
| Nearby Flood Policies | 2 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.
The area around 660 W Mount Diablo Ave 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 | CITY OF TRACY serves 98,215 people · EPA ID CA3910011 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Nov 2025 |
| 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.
Source: FCC Broadband Data Collection, based on 595 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Matrix Broadband Fixed Wireless | 600 / 120 |
| unWired Broadband Fixed Wireless | 400 / 50 |
| Cal.net Fixed Wireless | 100 / 20 |
| AT&T DSL | 100 / 20 |
May also be available: T-Mobile, Verizon.
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