Contra Costa County property record for 3640 Mount Diablo Blvd, Lafayette, CA 94549 · Last verified July 2026
| Property Type | Commercial > Office > Commercial Office |
|---|---|
| Year Built | Built 1997 |
| Square Footage | 6,829 sqft Gross Area |
| Lot Size | 14,810 sqft (0.34 acres) |
| Tax Bill | $31,515.00 (2025) |
| Primary APN | 243-060-005-2 |
|---|---|
| Alternative APN |
|
| Total Rooms | 4 Rooms |
|---|---|
| Building Area | 6,829 sqft Gross Area |
| 1st Floor | 6,829 sqft 1st Floor |
| Stories | 1 Stories |
| Year Built | Built 1996 |
|---|---|
| Effective Year Built | Effective 1997 |
| Lot Area | 14,810 sqft (0.34 acres) |
| Parking Spaces | 22 Parking Spaces |
| Street Address | 3640 MT DIABLO BLVD |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-6882 |
| Property Usage | Commercial Property Usage |
| Type | Commercial > Office > Commercial Office |
| Legal Description | POR RO ACALANES |
| Legal Subdivision | ACALANES RHO |
| Jurisdiction | CONTRA COSTA CA |
| Minor Civil Division | CENTRAL CONTRA COSTA |
| Census Blockgroup | 1 |
| Census Block | 1005 |
| Census Tract | 350000 |
Source: Contra Costa County records · APN 243-060-005-2
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on File |
|---|---|
| Mailing Address | 700 YGNACIO VALLEY RD, 120, WALNUT CREEK, CA 94596-3729 |
| Owner Type | Owner is a Company |
| Vesting | Owner is a Trust, Family Trust |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | May 20, 2003 |
| Deed Sale | May 20, 2003 |
| Prior Sale | Sep 16, 1998 · Amount on Record |
| Deed Doc Number | 2003234398 |
| Record Refreshed | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jan 30, 2026 |
| Property Address | 3640 MT DIABLO BLVD, LAFAYETTE, CA 94549-6882 |
| Document Number | 0000010000 |
| Instrument Date | Dec 05, 2025 |
| Instrument | 2026- 010000 |
| Transaction Type | Transfer |
| Record Updated | Feb 11, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Zero or No Consideration Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 700 YGNACIO VALLEY RD STE 120, 120, WALNUT CREEK, CA 94596-3729 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Lafayette City |
| Secondary School District | Acalanes Union High School District (09 - 12) |
| Elementary School District | Lafayette Elementary School District (KG - 08) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $2,585,000 (-0.96%) Land $689,300 Building $1,895,700 | |
| 2025 | $31,515.00 (+1.86%) | $2,610,000 (+3.94%) Land $695,900 Building $1,914,100 |
| 2023 | $30,941.00 (-1.53%) | $2,511,000 Land $669,500 Building $1,841,500 |
| 2022 | $31,423.00 |
3640 Mount Diablo Blvd is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.
Source: FEMA National Flood Hazard Layer · Contra Costa County (06013C), updated October 12, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
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