Contra Costa County property record for 1850 Gateway Blvd, Concord, CA 94520
| Property Type | Commercial Office |
|---|---|
| Details | 316,241 sqft · built 1987 |
| Lot Size | 3.27 acres (142,746 sqft) |
| Owner | Company Name on Record |
| Tax Bill | $281,449 (2025) |
| Deeds & Mortgages | May 2021 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 126-342-008-3 |
| Primary APN | 126-342-008-3 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 316,241 sqft Gross Area |
| 1st Floor Area | 316,241 sqft |
| Year Built | Built 1987 |
|---|---|
| Effective Year Built | Effective 1987 |
| Lot Area | 142,746 sqft |
| Street Address | 1850 GATEWAY BLVD |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-3279 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Commercial Office |
| Legal Description | POR RO MONTE DEL DIABLO 118PM47 PCL A |
| Legal Subdivision | RO MONTE DEL DIABLO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 328000 |
Source: Contra Costa County records, as of July 14, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 1800 WILLOW PASS CT, CONCORD, CA 94520-1012 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | May 26, 2021 |
| Property Address | 1850 GATEWAY BLVD, CONCORD, CA 94520-3279 |
| Document Number | 0000156240 |
| Map Reference | MB 118 PG 46 |
| Instrument Date | May 24, 2021 |
| Instrument | 2021-156240 |
| Transaction Type | Transfer |
| Record Updated | Nov 3, 2022 |
| Title Company | FIRST AMERICAN TITLE, FIRST AMERICAN TITLE INS CO |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1800 WILLOW PASS CT, CONCORD, CA 94520-1012 |
| Document Number | 0000156241 |
|---|---|
| Date | May 26, 2021 |
| Instrument | 2021-156241 |
| Name | NEW YORK LIFE INSURANCE COMPANY |
|---|---|
| Type | Insurance Company |
| Type | Commercial Mortgage |
|---|---|
| Amount | Amount Recorded |
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 | $22,803,601 (+%) Land $2,361,000 Building $20,442,601 | |
| 2025 | $281,449.00 (-52.07%) | $22,802,464 (-56.05%) Land $2,361,000 Building $20,441,464 |
| 2023 | $587,231.00 (-0.39%) | $51,880,866 Land $5,383,700 Building $46,497,166 |
| 2022 | $589,547.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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.
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 292 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable · Fiber in parts of the area | 2,000 / 250 |
| Astound Broadband Cable · Fiber in parts of the area | 1,500 / 50 |
| Unwired Fixed Wireless | 300 / 25 |
May also be available: AT&T, T-Mobile, Verizon.
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