San Mateo County property record for 509 Hemlock Ave, Millbrae, CA 94030 · Last verified July 2026
| Property Type | Residential > Single Family > Home |
|---|---|
| Bedrooms | 3 Beds |
| Bathrooms | 2 Baths |
| Year Built | Built 1941 |
| Square Footage | 1,780 sqft Living Area |
| Lot Size | 5,348 sqft (0.123 acres) |
| Garage | Basement, 390 sqft |
| Occupancy | Owner Occupied |
| Tax Bill | $4,827.00 (2025) |
| Primary APN | 024-154-400 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 7 Rooms |
| Building Area | 1,780 sqft Living Area |
| Gross Area | 2,170 sqft Gross Area |
| 1st Floor | 1,070 sqft 1st Floor |
| Basement Area | 390 sqft Basement |
| Family Room | Family Room |
| Stories | 1 Stories |
| Year Built | Built 1941 |
|---|---|
| Effective Year Built | Effective 1941 |
| Lot Area | 5,348 sqft (0.123 acres) |
| Depth X Width | 97 ft x 55 ft Depth x Width |
| Parking Spaces | 1 Parking Spaces |
| Garage Type | Basement Garage |
| Garage Area | 390 sqft Garage |
| Cooling System | Central Cooling |
|---|---|
| Heating System | Central Heating |
| Street Address | 509 HEMLOCK AVE |
|---|---|
| City | MILLBRAE |
| State | CA |
| Zip | 94030-2633 |
| Property Usage | Residential Property Usage |
| Type | Residential > Single Family > Home |
| Legal Description | LOT 15 BLOCK 5 MILLBRAE MANOR SUB 2 |
| Legal Subdivision | MILLBRAE MANOR SUB 2 |
| Legal Block | 5 |
| Legal Lot Number | 15 |
| Jurisdiction | SAN MATEO CA |
| Minor Civil Division | SOUTH SAN FRANCISCO |
| Census Blockgroup | 3 |
| Census Block | 3009 |
| Census Tract | 604400 |
Source: San Mateo County records · APN 024-154-400
Assessment roll updated July 15, 2026 · Last verified July 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 File |
|---|---|
| Mailing Address | 509 HEMLOCK AVE, MILLBRAE, CA 94030-2633 |
| Occupancy | Owner Occupied |
| Owner Type | Owner is a Company |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Transfer Date | Jul 13, 2024 |
| Transfer Doc | 0000044200 |
| Record Refreshed | Sep 20, 2026 |
Source: San Mateo County records · Assessment roll updated July 15, 2026 · Last verified July 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) |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $309,498 (+2%) Land $112,066 Building $197,432 | ||
| 2025 | $4,827.00 (+5.51%) Homeowner's exemption | $303,430 (+4.04%) Land $109,869 Building $193,561 | |
| 2023 | $4,575.00 (+33.73%) Homeowner's exemption | $291,649 Land $105,603 Building $186,046 | $1,090,350 |
| 2022 | $3,421.00 |
509 Hemlock Ave is in FEMA Zone X, outside the Special Flood Hazard Area, with no wildfire exposure.
Source: FEMA National Flood Hazard Layer · San Mateo County (06081C), updated September 10, 2026
| FEMA Flood Zone | Zone X minimal flood hazard · outside the 0.2% annual chance floodplain |
|---|---|
| Special Flood Hazard Area | No |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
Source: USDA Forest Service Wildfire Risk to Communities · 2nd edition (2024), fuels as of 2020
| Wildfire Risk to Homes | Not rated no burnable land in reach |
|---|---|
| Wildfire Likelihood | Negligible |
| Exposure | None beyond ember reach of burnable land |
Values are read at the parcel center point; lenders make the official flood determination.
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