Contra Costa County property record for 3630 Mount Diablo Blvd, Lafayette, CA 94549
| Property Type | Bank, Financial Building |
|---|---|
| Details | 4,275 sqft · built 1964 |
| Lot Size | 0.638 acres (27,791 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $21,540 (2025) |
| Deeds & Mortgages | Sep 2026 Transfer |
| Flood Zone | Zone X (minimal risk) |
| APN | 243-050-010-4 |
| Primary APN | 243-050-010-4 |
|---|---|
| Alternative APN |
|
| Total Rooms | 1 Room |
|---|---|
| Stories | 1 Story |
| Building Area | 4,275 sqft Gross Area |
| 1st Floor Area | 4,275 sqft |
| Year Built | Built 1964 |
|---|---|
| Effective Year Built | Effective 1964 |
| Lot Area | 27,791 sqft (0.638 acres) |
| Street Address | 3630 MT DIABLO BLVD |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-3737 |
| Property Category | Commercial |
| Property Type | Commercial > Office > Bank, Financial Building |
| Legal Description | LAFAYETTE TERR EXT POR LOTS 45 & 46 |
| Legal Subdivision | LAFAYETTE TERR EXT |
| Legal Lot Number | 45,46 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1000 |
| Census Tract | 350000 |
3630 Mount Diablo Blvd, a commercial property, is held in a trust since September 2026.
Source: Contra Costa County records, as of September 22, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3630 MT DIABLO BLVD, LAFAYETTE, CA 94549-3737 |
| Owner Type | Company |
| Vesting | Trust, Family Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Sep 9, 2026 |
| Transfer Doc | 0000096988 |
| Record Updated | Oct 29, 2026 |
| Document Type | Affidavit of Death of Trustee |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Sep 15, 2026 |
| Property Address | 3630 MT DIABLO BLVD, LAFAYETTE, CA 94549-3737 |
| Document Number | 0000096988 |
| Instrument Date | Sep 9, 2026 |
| Instrument | 202696988 |
| Transaction Type | Transfer |
| Record Updated | Sep 22, 2026 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Family Trust |
The 2025 property tax bill for 3630 Mount Diablo Blvd was $21,540.
Source: Contra Costa County assessment roll, as of July 14, 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) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $1,756,878 (+4.86%) Land $559,664 Building $1,197,214 | |
| 2025 | $21,540.00 | $1,675,374 Land $548,691 Building $1,126,683 |
| 2023 | $21,331.00 (+3.54%) | $1,612,017 Land $527,386 Building $1,084,631 |
| 2022 | $20,602.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 3630 Mount Diablo Blvd in Zone X, an area of minimal flood risk, though there have been 9 flood claims nearby since 1987.
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 |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on File median of 25 individual policies |
| Nearby Flood Policies | 63 units insured incl. 38 condo units |
| Nearby Flood Claims | 9 (1987–2001) |
| Claims Outside the SFHA | 1 of 9 |
| Most Recent Claim | Dec 2001 · rainfall accumulation |
| 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.
Wildfire risk around 3630 Mount Diablo Blvd is low, with a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · lower than 88% of California |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | None beyond 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 | EAST BAY MUD serves 1,468,000 people · EPA ID CA0110005 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Dec 2021 |
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 291 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: Etheric Networks, T-Mobile.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures