Contra Costa County property record for 3434 Mount Diablo Blvd, Lafayette, CA 94549
| Property Type | Auto Repair, Garage |
|---|---|
| Details | 12,099 sqft · built 1944 |
| Lot Size | 0.873 acres (38,025 sqft) |
| Owner | Company Name on Record |
| Last Sale | $8,160,000 (Jul 2023) |
| Tax Bill | $51,535 (2025) |
| Deeds & Mortgages | Jul 2023 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 233-040-024-9 |
| Primary APN | 233-040-024-9 |
|---|---|
| Alternative APN |
|
| Stories | 1 Story |
|---|---|
| Building Area | 12,099 sqft Gross Area |
| 1st Floor Area | 12,099 sqft |
| Year Built | Built 1944 |
|---|---|
| Effective Year Built | Effective 1960 |
| Lot Area | 38,025 sqft (0.873 acres) |
| Street Address | 3434 MT DIABLO BLVD |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-3981 |
| Property Category | Commercial |
| Property Type | Commercial > Retail > Auto Repair, Garage |
| Legal Description | LAF HOMESITES POR LOTS 42,43 & 44 BLK 12 |
| Legal Subdivision | LAFAYETTE HOMESITES |
| Legal Block | 12 |
| Legal Lot Number | 42 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1003 |
| Census Tract | 349000 |
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 | 1801 SAINT MARYS RD, MORAGA, CA 94556-2700 |
| Owner Type | Company |
| Vesting | Limited Liability Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Jul 26, 2023 · Amount on Record |
| Deed Sale | Jul 26, 2023 · Amount on Record |
| Deed Document Number | 202370997 |
| Prior Transfer Date | Nov 27, 2007 |
| Prior Transfer Doc | 0000329637 |
| Record Updated | Sep 20, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Recording Date | Jul 26, 2023 |
| Property Address | 3434 MT DIABLO BLVD, LAFAYETTE, CA 94549-3981 |
| Document Number | 0000070997 |
| Map Reference | DOC 2008-0269798-00 |
| Instrument Date | Jul 18, 2023 |
| Instrument | 2023-070997 |
| Transaction Type | Transfer |
| Record Updated | Aug 8, 2023 |
| Title Company | OLD REPUBLIC TITLE, OLD REPUBLIC TITLE COMPANY |
| Amount | Amount Recorded |
|---|---|
| Tax | $0.00 |
| Amount Accuracy | Rounded by County |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 1801 SAINT MARYS RD, MORAGA, CA 94556-2700 |
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 | $4,510,134 (+2%) Land $3,849,480 Building $660,654 | |
| 2025 | $51,535.00 (+279.8%) | $4,421,700 (+379.83%) Land $3,774,000 Building $647,700 |
| 2023 | $13,569.00 (+1.1%) | $921,510 Land $373,631 Building $547,879 |
| 2022 | $13,422.00 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
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 AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 9 in force |
| Nearby Flood Claims | 9 (1978–2017) |
| Claims Outside the SFHA | 3 of 9 |
| Most Recent Claim | Jan 2017 · Severe Winter Storms, Flooding, And Mudslides |
| 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.
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 | 0.03% annual chance |
| Exposure | Indirect 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 | 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 272 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL 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.
5G (outdoors only) and 4G LTE
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