San Mateo County property record for 343 Madrone St, Millbrae, CA 94030
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 2 ba · 1,168 sqft · built 1959 |
| Lot Size | 0.091 acres (3,943 sqft) |
| Owner | 2 Trust Names on File |
| Tax Bill | $4,271 (2025) |
| Deeds & Mortgages | Jun 2017 Transfer |
| Flood Zone | Zone AE (high risk) |
| APN | 021-301-260 |
| Primary APN | 021-301-260 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 6 Rooms |
| Units | 2 Units |
| Stories | 1 Story |
| Building Area | 1,168 sqft Living Area |
| 1st Floor Area | 1,168 sqft |
| Year Built | Built 1959 |
|---|---|
| Effective Year Built | Effective 1959 |
| Architectural Style | Duplex Single |
| Lot Area | 3,943 sqft (0.091 acres) |
| Lot Dimensions | 105 ft deep x 38 ft wide |
| View / Lot | Easement |
| Garage Type | Detached |
| Parking Spaces | 2 Parking Spaces |
| Street Address | 343 MADRONE ST |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2016 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Local Zoning Code | R20000 |
| Legal Description | LOT 11 & SWLY 1/2 OF LOT 8 BLOCK 1 MARINO VISTA PARK |
| Legal Subdivision | MARINO VISTA PARK |
| Legal Block | 1 |
| Legal Lot Number | 11,8 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 2 |
| Census Block | 2015 |
| Census Tract | 604400 |
343 Madrone St, a duplex, is held in a trust since June 2017.
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Trust Names on File |
|---|---|
| Mailing Address | 15 PLAID PL, HILLSBOROUGH, CA 94010-7216 |
| Owner Type | Company |
| Vesting | Trust |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Transfer Date | Jun 6, 2017 |
| Transfer Doc | 0000053848 |
| Record Updated | Sep 20, 2026 |
| Document Type | Quit Claim Deed |
|---|---|
| Jurisdiction | SAN MATEO CA |
| Recording Date | Jun 23, 2017 |
| Property Address | 343 MADRONE ST, MILLBRAE, CA 94030-2016 |
| Document Number | 0000053848 |
| Instrument Date | Jun 6, 2017 |
| Instrument | 53848 |
| Transaction Type | Transfer |
| Record Updated | Aug 3, 2017 |
| Title Company | ATTORNEY ONLY |
| Tax | $0.00 |
|---|---|
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Relationship | Corporate Trust |
| Address | 15 PLAID PL HILLSBOROUGH CA 940107216, HILLSBOROUGH, CA 94010-7216 |
The 2025 property tax bill for 343 Madrone St was $4,271.
Source: San Mateo County assessment roll, as of July 15, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Mateo County |
| Municipality | Millbrae City |
| Elementary School District | Millbrae Elementary School District (KG - 08) |
| Secondary School District | San Mateo Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $95,716 (+2%) Land $31,227 Building $64,489 | |
| 2025 | $4,271.00 | $93,840 Land $30,615 Building $63,225 |
| 2023 | $4,029.00 (+166.64%) | $90,198 Land $29,427 Building $60,771 |
| 2022 | $1,511.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 343 Madrone St in Zone AE, a high-risk flood area; flood insurance is required for federally backed loans.
Source: FEMA National Flood Hazard Layer, effective September 10, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone AE high risk |
|---|---|
| 100-Year Floodplain | Yes 1% annual chance |
| Floodway | No |
| Base Flood Elevation | 10.0 ft |
| Flood Insurance Requirement | Required federally backed loans |
| Flood Insurance Cost | Premium on File median of 83 policies |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 83 in force |
| Nearby Flood Claims | 10 (1982–1983) |
| Claims Outside the SFHA | 7 of 10 |
| Most Recent Claim | Jan 1983 · tidal / storm surge |
| 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.
The area around 343 Madrone St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CITY OF MILLBRAE serves 22,795 people · EPA ID CA4110018 |
|---|---|
| Water Source | Purchased surface water from SAN FRANCISCO REGIONAL WATER SYSTEM |
| Last State Inspection | Apr 2025 |
| Lead | Under 1 ppb (2023–2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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 13 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
May also be available: Sail Internet.
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