San Mateo County property record for 48 Hermosa Ave, Millbrae, CA 94030
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 680 sqft · built 1934 |
| Lot Size | 0.157 acres (6,829 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $1,150,000 (Dec 2016) |
| Tax Bill | $18,012 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 021-314-060 |
| Primary APN | 021-314-060 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Building Area | 680 sqft |
| 1st Floor Area | 680 sqft |
| Year Built | Built 1934 |
|---|---|
| Effective Year Built | Effective 1934 |
| Architectural Style | Multi-Family |
| Lot Area | 6,829 sqft (0.157 acres) |
| Lot Dimensions | 109 ft deep x 63 ft wide |
| Garage Type | Detached |
| Garage Area | 530 sqft |
| Parking Spaces | 2 Parking Spaces |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 48 HERMOSA AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2043 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R20000 |
| Legal Description | SWLY 12.5 FT OF LOT 8 BLOCK D LOT 9 BLOCK D LOT 10 BLOCK D MILLBRAE PARK |
| Legal Subdivision | MILLBRAE PARK |
| Legal Block | D |
| Legal Lot Number | 8 |
| Jurisdiction | SAN MATEO CA |
| Township / Civil Division | SOUTH SAN FRANCISCO |
| Census Block Group | 3 |
| Census Block | 3012 |
| Census Tract | 604400 |
Source: San Mateo County records, as of July 15, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 50 HERMOSA AVE, MILLBRAE, CA 94030-2043 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 20, 2016 · Amount on Record |
| Deed Sale | Dec 20, 2016 · Amount on Record |
| Deed Document Number | 2016135860 |
| Prior Transfer Date | Jun 26, 2012 |
| Prior Transfer Doc | 0000120216 |
| Record Updated | Sep 20, 2026 |
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 | $1,361,358 (+2%) Land $680,679 Building $680,679 | |
| 2025 | $18,012.00 (+6.2%) Homeowner's exemption | $1,334,666 (+4.04%) Land $667,333 Building $667,333 |
| 2023 | $16,960.00 (+18.97%) Homeowner's exemption | $1,282,842 Land $641,421 Building $641,421 |
| 2022 | $14,256.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
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 | 3 (1980–1982) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Dec 1982 · 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.
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 441 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Etheric Networks Fixed Wireless | 250 / 100 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Sail Internet, Verizon.
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