Contra Costa County property record for 1700 Willow Pass Ct, Concord, CA 94520
| Property Type | R&D Facility, Laboratory |
|---|---|
| Details | 4,689 sqft · built 2008 |
| Lot Size | 0.68 acres (29,630 sqft) |
| Owner | Company Name on Record |
| Last Sale | $1,550,000 (Jul 2018) |
| Tax Bill | $1,959 (2025) |
| Deeds & Mortgages | Jul 2018 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 099-210-007-3 |
| Primary APN | 099-210-007-3 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 4,689 sqft Gross Area |
| 1st Floor Area | 4,689 sqft |
| Year Built | Built 2008 |
|---|---|
| Effective Year Built | Effective 2008 |
| Lot Area | 29,630 sqft (0.68 acres) |
| Street Address | 1700 WILLOW PASS CT |
|---|---|
| City | CONCORD |
| State | CA |
| Zip | 94520-1011 |
| Property Category | Industrial |
| Property Type | Industrial > R&D Facility, Laboratory |
| Local Zoning Code | P1 |
| Legal Description | T8918 L7 |
| Legal Subdivision | WILLOW PASS BUS PARK SUB 89 |
| Legal Tract | 8918 |
| Legal Lot Number | 7 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2017 |
| Census Tract | 315000 |
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 | 2620 ST ANDREWS DR, BRENTWOOD, CA 94513-7090 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 3, 2018 · Amount on Record |
| Deed Sale | Jul 3, 2018 · Amount on Record |
| Prior Sale | Mar 31, 2008 · Amount on Record |
| Deed Document Number | 2018105729 |
| Prior Transfer Date | May 25, 2007 |
| Prior Transfer Doc | 0000160607 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 3, 2018 |
| Property Address | 1700 WILLOW PASS CT, CONCORD, CA 94520-1011 |
| Document Number | 0000105729 |
| Instrument Date | Jun 27, 2018 |
| Instrument | 105729 |
| Transaction Type | Transfer |
| Record Updated | Jul 9, 2018 |
| Title Company | CHICAGO TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $1,705.00 |
| Amount Accuracy | Full Value |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 2620 ST ANDREWS DR BRENTWOOD CA 945137090, BRENTWOOD, CA 94513-7090 |
Source: Contra Costa County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Unified School District | Mount Diablo Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,821,996 (+2%) Land $967,152 Building $854,844 | |
| 2025 | $1,959.00 (+8.35%) Additional exemption filed | $1,786,272 (+4.04%) Land $948,189 Building $838,083 |
| 2023 | $1,808.00 (+1.4%) Additional exemption filed | $1,716,911 Land $911,371 Building $805,540 |
| 2022 | $1,783.00 |
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 | Moderate above 52% of the US · lower than 69% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 9 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Unwired Fixed Wireless | 300 / 25 |
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