Contra Costa County property record for 1231 Diamond Way, Concord, CA 94520
| Property Type | Industrial Park |
|---|---|
| Details | 12 ba · 12,600 sqft · built 1964 |
| Lot Size | 0.674 acres (29,359 sqft) |
| Owner | Trust Name on File |
| Last Sale | $2,000,000 (Mar 2007) |
| Tax Bill | $33,052 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 127-220-013-8 |
| Primary APN | 127-220-013-8 |
|---|---|
| Alternative APN |
|
| Full Baths | 12 Baths |
|---|---|
| Half Baths | 8 Half Baths |
| Total Rooms | 2 Rooms |
| Stories | 1 Story |
| Building Area | 12,600 sqft Gross Area |
| 1st Floor Area | 12,600 sqft |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1969 |
| Exterior Material | Block |
| Construction Type | Concrete Block |
| Roof Type | Mansard |
| Roof Material | Tar & Gravel |
| Lot Area | 29,359 sqft (0.674 acres) |
| Lot Dimensions | 293 ft deep x 100 ft wide |
| Garage Area | 10,000 sqft |
| Street Address | 1231 DIAMOND WAY |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-5276 |
| Property Category | Industrial |
| Property Type | Industrial > Industrial Park |
| Legal Description | TRACT 2588 LOT 12 |
| Legal Subdivision | CONCORD INDUSTRIAL PARK |
| Legal Tract | 2588 |
| Legal Lot Number | 12 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2057 |
| Census Tract | 327001 |
1231 Diamond Way, an industrial property, is held in a trust since March 2007.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | Trust Name on File |
|---|---|
| Mailing Address | 405 PRIMROSE RD, 300, BURLINGAME, CA 94010-4014 |
| Owner Type | Company |
| Vesting | 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 | Name on Deed |
|---|---|
| Last Sale | Mar 16, 2007 · Amount on File |
| Deed Sale | Mar 16, 2007 · Amount on File |
| Deed Document Number | 200777827 |
| Prior Transfer Date | Apr 3, 1998 |
| Prior Transfer Doc | 0000072399 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 1231 Diamond Way was $33,052.
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Concord City |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,733,157 (+2%) Land $962,888 Building $1,770,269 | |
| 2025 | $33,052.00 | $2,679,566 Land $944,008 Building $1,735,558 |
| 2023 | $31,681.00 (+2.13%) | $2,575,517 Land $907,352 Building $1,668,165 |
| 2022 | $31,021.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 1231 Diamond Way 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 A, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Community Rating System | Class 6 (20% premium discount) |
| Nearby Flood Policies | 7 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 1231 Diamond Way 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 | CONTRA COSTA WATER DISTRICT serves 210,500 people · EPA ID CA0710003 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2022 |
| Lead | Under 1 ppb (2026–2028) 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 269 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 / 2,000 |
| Astound Broadband Cable | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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