Contra Costa County property record for 3644 Brook St, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 3 ba · 2,426 sqft · built 1988 |
| Lot Size | 0.386 acres (16,800 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $1,178,000 (Mar 2005) |
| Tax Bill | $19,883 (2025) |
| Deeds & Mortgages | Apr 2021 Mortgage Mar 2020 Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 243-082-034-6 |
| Primary APN | 243-082-034-6 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 11 Rooms |
| Stories | 2 Stories |
| Building Area | 2,426 sqft Living Area |
| 1st Floor Area | 1,533 sqft |
| 2nd Floor Area | 893 sqft |
| Year Built | Built 1988 |
|---|---|
| Effective Year Built | Effective 1988 |
| Lot Area | 16,800 sqft (0.386 acres) |
| Garage Type | Attached |
| Garage Area | 550 sqft |
| Parking Spaces | 2 Parking Spaces |
| Heating System | Central |
|---|
| Street Address | 3644 BROOK ST |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-4202 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | PARCEL MAP 16 PG 43 PCL A |
| Legal Tract | 16PM43 |
| 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 | 2 Company Names on Record |
|---|---|
| Mailing Address | 3644 BROOK ST, LAFAYETTE, CA 94549-4202 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
| Date | Document |
|---|---|
| Apr 1, 2021 | Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC |
| Mar 14, 2020 | Deed of Trust, Mortgage · Conventional Mortgage LOANDEPOT.COM LLC |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 9, 2005 · Amount on Record |
| Deed Sale | Mar 9, 2005 · Amount on Record |
| Deed Document Number | 200579913 |
| Last Transfer Date | Dec 11, 2007 |
| Transfer Doc | 0000002506 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3644 BROOK ST, LAFAYETTE, CA 94549-4202 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | AMERICAN COAST TITLE |
| Name | Verified Name |
|---|---|
| Address | 3644 BROOK ST, LAFAYETTE, CA 94549-4202 |
| Document Number | 0000098428 |
|---|---|
| Date | Apr 1, 2021 |
| Instrument | 2021-098428 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Mortgage Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 360 Months |
| Due | Apr 1, 2051 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3644 BROOK ST, LAFAYETTE, CA 94549-4202 |
| Document Number | 0000058169 |
| Instrument Date | Mar 14, 2020 |
| Transaction Type | Mortgage |
| Record Updated | Apr 15, 2020 |
| Title Company | TITLE CONNECT LLC |
| Name | Verified Name |
|---|---|
| Relationship | Personal Trust |
| Address | 3644 BROOK ST LAFAYETTE CA 945494202, LAFAYETTE, CA 94549-4202 |
| Document Number | 0000058169 |
|---|---|
| Date | Mar 26, 2020 |
| Instrument | 58169 |
| Name | LOANDEPOT.COM LLC |
|---|---|
| Type | Funding / Finance Company |
| Address | FOOTHILL RANCH, CA 92610 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount Recorded |
| Term | 180 Months |
| Due | Mar 25, 2035 |
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 | $1,674,286 (+2%) Land $1,144,534 Building $529,752 | |
| 2025 | $19,883.00 (+3.52%) Homeowner's exemption | $1,641,458 (+4.04%) Land $1,122,093 Building $519,365 |
| 2023 | $19,206.00 (+1.56%) Homeowner's exemption | $1,577,721 Land $1,078,522 Building $499,199 |
| 2022 | $18,911.00 |
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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