Contra Costa County property record for 3651 Walnut St, Lafayette, CA 94549
| Property Type | Triplex |
|---|---|
| Details | 2,961 sqft · built 1958 |
| Lot Size | 0.25 acres (10,900 sqft) |
| Owner | Company Name on Record |
| Last Sale | $685,000 (Apr 1997) |
| Tax Bill | $9,922 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 243-090-011-4 |
| Primary APN | 243-090-011-4 |
|---|---|
| Alternative APN |
|
| Total Rooms | 3 Rooms |
|---|---|
| Stories | 1 Story |
| Building Area | 2,961 sqft Living Area |
| 1st Floor Area | 2,961 sqft |
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1965 |
| Architectural Style | Triplex |
| Lot Area | 10,900 sqft (0.25 acres) |
| Garage Type | Carport |
| Carport | Carport |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 3647 WALNUT ST, 3651 |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-4220 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Triplex |
| Legal Description | BICKERSTAFF TR POR LOTS 24 & 25 BLK 4 |
| Legal Subdivision | BICKERSTFF |
| Legal Block | 4 |
| Legal Lot Number | 24,25 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 350000 |
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 | 3647 WALNUT ST, 3651, LAFAYETTE, CA 94549-4220 |
| Owner Type | Company |
| Vesting | Limited Liability Partnership |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Apr 24, 1997 · Amount on Record |
| Deed Sale | Apr 24, 1997 · Amount on Record |
| Deed Document Number | 199766827 |
| Last Transfer Date | Jan 19, 2016 |
| Transfer Doc | 0000212466 |
| Record Updated | Sep 20, 2026 |
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 | $619,633 (+2%) Land $411,986 Building $207,647 | |
| 2025 | $9,922.00 (+2.74%) | $607,484 (+4.04%) Land $403,908 Building $203,576 |
| 2023 | $9,657.00 (+0.29%) | $583,897 Land $388,225 Building $195,672 |
| 2022 | $9,629.00 |
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 · 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 100 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Flood Insurance Cost | Premium on Record 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 45% of the US · lower than 73% of California |
|---|---|
| Wildfire Likelihood | 0.08% 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 275 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| AT&T DSL · Fiber in parts of the area | 100 / 20 |
May also be available: Etheric Networks, T-Mobile, Verizon.
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