Contra Costa County property record for 23 Atherton Cir, Pittsburg, CA 94565
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,497 sqft · built 1976 |
| Lot Size | 0.17 acres (7,384 sqft) |
| Owner | 2 Company Names on File |
| Last Sale | $136,000 (May 1995) |
| Tax Bill | $3,225 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 087-332-021-2 |
| Primary APN | 087-332-021-2 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,497 sqft Living Area |
| 1st Floor Area | 1,497 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1976 |
|---|---|
| Effective Year Built | Effective 1977 |
| Architectural Style | Bungalow |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 7,384 sqft (0.17 acres) |
| Garage Type | Attached |
| Garage Area | 423 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Gravity Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 23 ATHERTON CIR |
|---|---|
| City | PITTSBURG |
| State | CA |
| Zip | 94565-4707 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R1A |
| Legal Description | T04323 L0351 B |
| Legal Subdivision | COUNTRY CLUB SUB 4323 |
| Legal Tract | 04323 |
| Legal Lot Number | 351 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 313206 |
23 Atherton Cir is owned by a company that acquired it in September 2024 and is owner-occupied.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 23 ATHERTON CIR, PITTSBURG, CA 94565-4707 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Life Tenant |
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 | May 19, 1995 · Amount on File |
| Deed Sale | May 19, 1995 · Amount on File |
| Deed Document Number | 199579602 |
| Last Transfer Date | Sep 12, 2024 |
| Transfer Doc | 0000099442 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 23 Atherton Cir was $3,225 with a homeowner's exemption.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Pittsburg City |
| Unified School District | Pittsburg Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $232,974 (+2%) Land $68,512 Building $164,462 | |
| 2025 | $3,225.00 Homeowner's exemption | $228,407 Land $67,169 Building $161,238 |
| 2023 | $3,121.00 (-1.17%) Homeowner's exemption | $219,539 Land $64,561 Building $154,978 |
| 2022 | $3,158.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 23 Atherton Cir 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 23 Atherton Cir is low, with a 0.05% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 65% of the US · lower than 79% of California |
|---|---|
| Wildfire Likelihood | 0.05% annual chance |
| Exposure | Indirect 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 PITTSBURG serves 62,500 people · EPA ID CA0710008 |
|---|---|
| Water Source | Purchased surface water from CONTRA COSTA WATER DISTRICT |
| Last State Inspection | Apr 2023 |
| 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 743 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: T-Mobile, Unwired.
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