San Mateo County property record for 3402 Lower Lock Ave, Belmont, CA 94002
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 3 ba · 1,910 sqft · built 1961 |
| Lot Size | 0.147 acres (6,388 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $378,000 (Dec 1993) |
| Tax Bill | $8,713 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 043-042-060 |
| Primary APN | 043-042-060 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 3 Baths |
| Total Rooms | 7 Rooms |
| Stories | 2 Stories |
| Building Area | 1,910 sqft Living Area |
| Gross Area | 2,680 sqft |
| 1st Floor Area | 1,590 sqft |
| Basement Area | 770 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1961 |
|---|---|
| Effective Year Built | Effective 1961 |
| Architectural Style | Ranch |
| Exterior Material | Wood |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 6,388 sqft (0.147 acres) |
| Lot Dimensions | 128 ft deep x 50 ft wide |
| Garage Area | 480 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 3402 LOWER LOCK AVE |
|---|---|
| City | BELMONT |
| State | CA |
| Zip | 94002-1308 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R10006 |
| Legal Description | LOT 17 BLOCK 120 BELMONT CO CLUB PROP 10 |
| Legal Subdivision | BELMONT CO CLUB PROP 10 |
| Legal Block | 120 |
| Legal Lot Number | 17 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SAN MATEO |
| Census Block Group | 5 |
| Census Block | 5000 |
| Census Tract | 608800 |
3402 Lower Lock Ave is owned and occupied by two individuals who bought it in December 1993.
Source: San Mateo County records, as of July 15, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 3402 LOWER LOCK AVE, BELMONT, CA 94002-1308 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 3, 1993 · Amount on File |
| Deed Sale | Dec 3, 1993 · Amount on File |
| Deed Document Number | 1993209372 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 3402 Lower Lock Ave was $8,713 with a homeowner's exemption.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| Municipality | Belmont City |
| County | San Mateo County |
| Elementary School District | Belmont-Redwood Shores Elementary School District (KG - 08) |
| Secondary School District | Sequoia Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $655,304 (+2%) Land $327,652 Building $327,652 | ||
| 2025 | $8,713.00 Homeowner's exemption | $642,456 Land $321,228 Building $321,228 | |
| 2023 | $8,177.00 (+3.69%) Homeowner's exemption | $617,510 Land $308,755 Building $308,755 | $1,936,980 |
| 2022 | $7,886.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 3402 Lower Lock Ave in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 1980.
Source: FEMA National Flood Hazard Layer, effective September 10, 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 Claims | 1 (1980) |
| Most Recent Claim | Jan 1980 · tidal / storm surge |
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 3402 Lower Lock Ave is low, with a 0.03% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 94% of the US · lower than 96% of California |
|---|---|
| Wildfire Likelihood | 0.03% annual chance |
| Exposure | Direct burnable vegetation |
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 | MID-PENINSULA WATER DISTRICT serves 31,059 people · EPA ID CA4110001 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Feb 2025 |
| 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.
Source: FCC Broadband Data Collection, based on 314 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Verizon Fixed Wireless | 1,000 / 75 |
May also be available: Etheric Networks, Sonic Telecom, T-Mobile.
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