Contra Costa County property record for 3620 Brook St, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 2,294 sqft · built 1951 |
| Lot Size | 0.437 acres (19,019 sqft) |
| Owner | Company Name on File |
| Tax Bill | $8,515 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 243-090-018-9 |
| Primary APN | 243-090-018-9 |
|---|---|
| Alternative APN |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 9 Rooms |
| Stories | 1 Story |
| Building Area | 2,294 sqft Living Area |
| Gross Area | 2,694 sqft |
| 1st Floor Area | 1,440 sqft |
| Basement Area | 854 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1951 |
|---|---|
| Effective Year Built | Effective 1988 |
| Architectural Style | Ranch |
| Exterior Material | Wood Siding |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 19,019 sqft (0.437 acres) |
| View / Lot | Woodland |
| Garage Type | Attached |
| Garage Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Deck Area | Deck Area |
| Heating System | Radiant |
|---|---|
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3620 BROOK ST |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-4202 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BICKERSTAFF TR POR LOT 82 BLK 6 |
| Legal Subdivision | BICKERSTAFF |
| Legal Block | 6 |
| Legal Lot Number | 82 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 1 |
| Census Block | 1009 |
| Census Tract | 350000 |
Source: Contra Costa County assessment roll, 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 File |
|---|---|
| Mailing Address | 3620 BROOK ST, LAFAYETTE, CA 94549-4202 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | Verified Name on Deed |
|---|---|
| Last Transfer Date | Jan 21, 2004 |
| Transfer Doc | 0000031801 |
| 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 | $605,888 (+2%) Land $337,788 Building $268,100 | |
| 2025 | $8,515.00 (+3.75%) Homeowner's exemption | $594,009 (+4.04%) Land $331,165 Building $262,844 |
| 2023 | $8,207.00 (+1.6%) Homeowner's exemption | $570,945 Land $318,306 Building $252,639 |
| 2022 | $8,078.00 |
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 |
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 Communications, LLC., T-Mobile USA, Verizon.
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