Contra Costa County property record for 3675 Happy Valley Rd, Lafayette, CA 94549
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 4.5 ba · 4,139 sqft · built 1955 |
| Lot Size | 0.97 acres (42,253 sqft) |
| Owner | 2 Trust Names on File |
| Last Sale | $5,295,000 (Mar 2025) |
| Tax Bill | $28,865 (2025) |
| Deeds & Mortgages | Oct 2025 Mortgage Jan 2022 Second Mortgage |
| Flood Zone | Zone X (minimal risk) |
| APN | 244-140-004-7 |
| Primary APN | 244-140-004-7 |
|---|---|
| Alternative APN |
|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 4.5 Baths |
| Half Baths | 1 Half Bath |
| Total Rooms | 12 Rooms |
| Stories | 1 Story |
| Building Area | 4,139 sqft Living Area |
| Gross Area | 5,484 sqft |
| 1st Floor Area | 4,007 sqft |
| Basement Area | 84 sqft |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1955 |
|---|---|
| Effective Year Built | Effective 1990 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Roof Material | Wood Shingle |
| Lot Area | 42,253 sqft (0.97 acres) |
| View / Lot | Woodland |
| Garage Type | Attached |
| Garage Area | 1,345 sqft |
| Parking Spaces | 5 Parking Spaces |
| Heating System | Forced Air with A/C |
|---|---|
| Heating Fuel | Gas |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 3675 HAPPY VALLEY RD |
|---|---|
| City | LAFAYETTE |
| State | CA |
| Zip | 94549-3017 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | POR RO ACALANES |
| Legal Subdivision | ACALANES RHO |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | CENTRAL CONTRA COSTA |
| Census Block Group | 2 |
| Census Block | 2004 |
| Census Tract | 348000 |
3675 Happy Valley Rd is owner-occupied and held in a trust since March 2025.
Source: Contra Costa County records, as of July 14, 2026
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 3675 HAPPY VALLEY RD, LAFAYETTE, CA 94549-3017 |
| Occupancy | Owner Occupied |
| Owner Type | Company |
| Vesting | Trust |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Date | Document |
|---|---|
| Oct 27, 2025 | Deed of Trust, Mortgage · Conventional Mortgage CITIBANK NA |
| Jan 5, 2022 | Deed of Trust, Mortgage · Stand-Alone Second Mortgage RIVER CITY BANK |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Mar 19, 2025 · Amount on File |
| Deed Sale | Mar 19, 2025 · Amount on File |
| Prior Sale | Apr 25, 2000 · Amount on File |
| Deed Document Number | 202525636 |
| Prior Transfer Date | Mar 13, 2013 |
| Prior Transfer Doc | 0000086106 |
| Record Updated | Oct 29, 2026 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3675 HAPPY VALLEY RD, LAFAYETTE, CA 94549-3017 |
| Transaction Type | Mortgage |
| Record Updated | Nov 7, 2025 |
| Name | Verified Name |
|---|---|
| Address | 3675 HAPPY VALLEY RD, LAFAYETTE, CA 94549-3017 |
| Document Number | 0000112718 |
|---|---|
| Date | Oct 27, 2025 |
| Instrument | 2025- 112718 |
| Name | CITIBANK NA |
|---|---|
| Type | Bank |
| Address | 1000 TECHNOLOGY DR, O FALLON, MO 63368 |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 361 Months |
| Due | Nov 1, 2055 |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 5.62% |
| Adjustable | Adjustable Rate Rider |
| Type Change Date | Nov 1, 2035 |
| Change Frequency | 6 Months |
| Min Rate At Change | 2.75% |
| Max Rate At Change | 10.6% |
| Index | Other |
| Max Rate | 10.6% |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | CONTRA COSTA CA |
| Property Address | 3675 HAPPY VALLEY RD, LAFAYETTE, CA 94549-3017 |
| Transaction Type | Mortgage |
| Record Updated | Nov 3, 2022 |
| Title Company | CHICAGO TITLE COMPANY |
| Name | Verified Name |
|---|---|
| Address | 3675 HAPPY VALLEY RD, LAFAYETTE, CA 94549-3017 |
| Document Number | 0000002208 |
|---|---|
| Date | Jan 5, 2022 |
| Instrument | 2022-002208 |
| Name | RIVER CITY BANK |
|---|---|
| Type | Bank |
| Address | SACRAMENTO, CA 95833 |
| Type | Stand-Alone Second Mortgage |
|---|---|
| Amount | Amount on Record |
The 2025 property tax bill for 3675 Happy Valley Rd was $28,865.
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 | $5,400,900 (+122.36%) Land $2,550,000 Building $2,850,900 | |
| 2025 | $28,865.00 | $2,428,888 Land $768,484 Building $1,660,404 |
| 2023 | $27,991.00 (+0.93%) Homeowner's exemption | $2,334,574 Land $738,644 Building $1,595,930 |
| 2022 | $27,734.00 |
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.
FEMA maps place 3675 Happy Valley Rd in Zone X, an area of minimal flood risk, though there have been 4 flood claims nearby since 1980.
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 |
| Nearby Flood Policies | 5 in force |
| Nearby Flood Claims | 4 (1980–2010) |
| Claims Outside the SFHA | 2 of 4 |
| Most Recent Claim | Jan 2010 · rainfall accumulation |
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 3675 Happy Valley Rd is moderate, ranking above 50% of the US, with a 0.1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 50% of the US · lower than 70% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | Indirect within ember reach |
| Adjoins Burnable Land | Yes |
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 198 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, Fixed Wireless in parts of the area | 100 / 20 |
May also be available: Etheric Networks, Verizon.
Search by:
By searching, you agree to: Terms • Privacy • Disclosures