Contra Costa County property record for 810 Black Diamond St, Pittsburg, CA 94565
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 966 sqft · built 1918 |
| Lot Size | 0.078 acres (3,400 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $1,335 (2025) |
| Deeds & Mortgages | May 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 085-191-006-7 |
| Primary APN | 085-191-006-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 966 sqft Living Area |
| 1st Floor Area | 966 sqft |
| Year Built | Built 1918 |
|---|---|
| Effective Year Built | Effective 1928 |
| Architectural Style | Bungalow |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 3,400 sqft (0.078 acres) |
| Garage Type | Attached |
| Garage Area | 200 sqft |
| Parking Spaces | 1 Parking Space |
| Heating System | Floor/Wall Furnace |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 810 BLACK DIAMOND ST |
|---|---|
| City | PITTSBURG |
| State | CA |
| Zip | 94565-2541 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | C2 |
| Legal Description | CITY OF PITTS LOT 1 BLK 68 |
| Legal Subdivision | PITTSBURG |
| Legal Block | 68 |
| Legal Lot Number | 1 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 3 |
| Census Block | 3002 |
| Census Tract | 310000 |
810 Black Diamond St is held in a trust since January 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3364 DEER HILL RD, LAFAYETTE, CA 94549-3258 |
| Owner Type | Company |
| Vesting | Trust, Revocable Trust |
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 | Jan 30, 2025 |
| Transfer Doc | 0000015498 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 7, 2021 |
| Property Address | 810 BLACK DIAMOND ST, PITTSBURG, CA 94565-2541 |
| Document Number | 0000137441 |
| Map Reference | MB 17 PG 357 |
| Instrument Date | May 3, 2021 |
| Instrument | 2021-137441 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 3364 DEER HILL RD, LAFAYETTE, CA 94549-3258 |
| Document Number | 0000137442 |
|---|---|
| Date | May 7, 2021 |
| Instrument | 2021-137442 |
| Name | LAND-HOME FINANCIAL SERVICES |
|---|---|
| Type | Mortgage Company |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Jun 1, 2051 |
The 2025 property tax bill for 810 Black Diamond St was $1,335.
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 | $58,315 (+2%) Land $42,417 Building $15,898 | |
| 2025 | $1,335.00 | $57,173 Land $41,586 Building $15,587 |
| 2023 | $1,355.00 (-0.37%) | $54,955 Land $39,972 Building $14,983 |
| 2022 | $1,360.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 810 Black Diamond St in Zone X, an area of minimal flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective October 12, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 42 policies |
| Nearby Flood Policies | 42 in force |
| Nearby Flood Claims | 4 (1998–2023) |
| Claims Outside the SFHA | 1 of 4 |
| Most Recent Claim | Feb 2023 · Severe Winter Storm And Flooding |
| Claims by Event |
|
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 810 Black Diamond 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 | 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 540 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T DSL · Fiber, Fixed Wireless in parts of the area | 100 / 20 |
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